JP5203246B2 - Image forming apparatus, image forming method, and program - Google Patents

Description

  The present invention relates to an image forming apparatus, an image forming method, and a program.

Conventionally, as shown in Patent Document 1, a technique for performing image processing based on declination spectral information of a subject is known. Further, as shown in Patent Document 2, a technique for evaluating a texture such as glossiness based on a declination reflection distribution characteristic is known.
JP 2005-049935 A

  According to Patent Document 1, even when an image subjected to image processing is printed, a texture such as glitter cannot be expressed sufficiently. For example, the area where the actual subject glitters varies depending on the viewing angle, but in the case of a printed image, the glossy location does not change from any direction, resulting in an unnatural image and reduced texture. End up.

  In order to solve the above-described problem, in a first aspect of the present invention, an image forming apparatus includes an image acquisition unit that acquires image data, and a subject in each region of the image data. A deflection angle dependency characteristic acquisition unit that acquires deflection angle dependency characteristic data indicating the luminance of a subject viewed from a plurality of different angles, a printing unit that prints an image of the image data acquired by the image acquisition unit, and a deviation of each region An interference pattern acquisition unit that acquires different interference patterns according to the angle-dependent characteristic data; and a film application unit that applies a glossy film having interference fringes of the interference pattern on each region in the image printed by the printing unit; Is provided.

  Based on the declination dependence characteristic data, it may further include an area detection unit that detects an area of the subject whose luminance dispersion value with respect to the angle is smaller than a predetermined value, and the interference pattern acquisition unit detects the deviation of the area detected by the area detection unit. Different interference patterns are acquired according to the angle-dependent characteristic data, and the film applying unit applies a glossy film having interference fringes of the interference pattern on the region detected by the region detecting unit in the image printed by the printing unit. It's okay.

  The film applying unit includes an irradiation unit that irradiates light, a half mirror that divides the light irradiated by the irradiation unit into two lights, and a digital micromirror device that reflects one light divided by the half mirror. Often, an interference pattern is generated on the reflection surface of the digital micromirror device, one of the lights divided by the half mirror is reflected, and the light reflected by the digital micromirror device and the other light divided by the half mirror May be produced on the ink to produce a glossy film having interference pattern interference fringes.

  The film applying unit applies ink onto the region in the image printed by the printing unit, generates interference fringes of an interference pattern of light on the ink, and generates a glossy film. A glossy film having an interference pattern of interference fringes may be applied.

  The image acquisition unit acquires a plurality of pieces of image data obtained by imaging the same object to be photographed from different directions, and the declination dependence characteristic acquisition unit acquires the luminance values of the same subject from the plurality of pieces of image data, respectively. Declination-dependent characteristic data for the subject in each region may be calculated from the plurality of luminance values of the subject and the imaging directions in which the plurality of image data are captured.

  The image acquisition unit acquires a plurality of image data obtained by continuously capturing the same moving object to be imaged, and the declination-dependent characteristic acquisition unit includes a luminance value of the same area of the plurality of image data, a plurality of image data The time-dependent characteristic data indicating the luminance of the subject at different times may be converted into the declination-dependent characteristic data from the time when the image data was captured, and the declination-dependent characteristic data for the subject in each region may be calculated.

  In order to solve the above problem, in a second aspect of the present invention, in a second aspect of the present invention, there is provided a program comprising: an image acquisition unit that acquires image data; and an image of a subject in each region of the image data from the image data. A declination dependency characteristic acquisition unit that acquires declination dependency characteristic data indicating the luminance of the subject viewed from a plurality of different angles, a printing unit that prints an image of the image data acquired by the image acquisition unit, and An interference pattern acquisition unit that acquires different interference patterns according to declination-dependent characteristic data, and a film application unit that applies a glossy film having interference fringes of the interference pattern on each region in the image printed by the printing unit To function as.

  In order to solve the above problems, in a third aspect of the present invention, there is provided an image forming method in which a computer forms an image, an image acquisition step of acquiring image data, and each of the image data from the image data. A declination-dependent characteristic acquisition step of acquiring declination-dependent characteristic data indicating the luminance of the subject viewed from a plurality of different angles, and a printing step of printing an image of the image data acquired by the image acquisition step An interference pattern acquisition step of acquiring different interference patterns according to the deflection angle dependent characteristic data of each region, and a glossy film having interference fringes of the interference pattern on each region in the image printed by the printing step A granting step of granting.

  It should be noted that the above summary of the invention does not enumerate all the necessary features of the present invention. In addition, a sub-combination of these feature groups can also be an invention.

  FIG. 1 shows an example of an image forming apparatus 100 according to the present embodiment. The image forming apparatus 100 includes an image acquisition unit 101, an argument dependence characteristic acquisition unit 102, an operation unit 103, a change unit 104, an image generation unit 105, a display unit 106, an area detection unit 107, a print image generation unit 108, and reproduction processing data. A generation unit 109 and a printing apparatus 110 are provided.

  The image acquisition unit 101 acquires image data captured by an imaging device such as a digital camera. The image acquisition unit 101 may acquire a plurality of image data obtained by imaging the same imaging target object from different directions and respective imaging angles of the plurality of image data. This imaging angle refers to an angle when the image data of the imaging object is imaged, for example, when the imaging angle in front of the imaging object is 0 degree. The angle specified by the user may be the front. Further, the image acquisition unit 101 may acquire a plurality of image data in which the same moving imaging object is continuously captured and the time when each of the plurality of image data is captured. The image acquisition unit 101 outputs the acquired image data to the declination dependence characteristic acquisition unit 102, the image generation unit 105, and the print image generation unit 108. Note that the imaging angle is set to 0 degrees in front of the object to be imaged, but it may not be the front, and any angle may be a predetermined angle such as 0 degrees. Further, a relative angle between image data captured from different angles may be acquired, and an imaging angle of image data specified by a user may be set to a predetermined angle such as 0 degrees.

  The declination-dependent characteristic acquisition unit 102 acquires declination-dependent characteristic data of each subject in a plurality of regions of the image data from the image data acquired by the image acquisition unit 101. The declination-dependent characteristic data indicates the luminance of the subject viewed from a plurality of different angles. When the image acquisition unit 101 acquires a plurality of pieces of image data in which the same imaging target is imaged from different directions, the declination dependence characteristic acquisition unit 102 acquires the luminance value of the same subject from the plurality of image data, respectively. . Then, declination-dependent characteristic data for the subject in each region may be calculated and acquired from the plurality of luminance values of the same subject and the imaging directions in which the plurality of image data are captured. In addition, when the image acquisition unit 101 acquires a plurality of pieces of image data obtained by continuously capturing the same moving imaging object, the declination dependence characteristic acquisition unit 102 determines the luminance of the same region of the plurality of image data. The time-dependent characteristic data indicating the brightness of the subject at different times may be obtained by converting the value and the time when a plurality of pieces of image data are captured into the angle-dependent characteristic data. The glittering feeling may change with time like a glittering feeling such as reflection on the water surface in addition to the parallax between the left and right eyes or the viewing angle. Therefore, the change in the glitter feeling caused by the parallax of the temporal change is converted into the change in the glitter feeling caused by the parallax of the left and right eyes and the viewing angle.

  The declination dependence characteristic acquisition unit 102 may acquire the declination dependence characteristic data of each region from one piece of image data acquired by the image acquisition unit 101. For example, the type of subject may be determined by image recognition processing, and deviation-dependent characteristic data of the determined type of subject may be acquired. As a method for determining the type of subject by image recognition processing, for example, it can be recognized as a jewelry such as a ring, a tiara, and a necklace from the color, shape, and wearing position. Further, the position of the light source is estimated from the image, and a glossy vehicle body, a metal part of furniture, and the like are recognized from the shape. The declination dependence characteristic can also be estimated from the shape recognized as the estimated light source position. It is also effective for glossy kimono or clothing containing gold yarn or glossy yarn. In this case, a table may be provided in which deviation angle dependent characteristic data corresponding to the type of subject is recorded. Further, the material of the subject may be recognized by image recognition processing, and the deviation angle dependent characteristic data of the determined material may be acquired. For example, you may have a table which recorded the material corresponding to a spatial frequency and a spatial frequency, and you may recognize a material by analyzing a spatial frequency. In this case, there may be provided a table in which the angle dependence characteristic data is recorded corresponding to each material. The declination dependence characteristic acquisition unit 102 may be realized by an information processing device such as a CPU, or may be realized by an electronic circuit or an electric circuit.

  Further, the declination dependence characteristic acquisition unit 102 may further calculate declination dependence characteristic data according to the printing performance of the printing apparatus 110. In other words, the deflection angle dependency characteristic data corresponding to the printing performance of the printing apparatus 110 may be calculated and acquired from the deflection angle dependency characteristic data of the subject in each region acquired from the plurality of image data. The declination dependence characteristic acquisition unit 102 outputs the acquired declination dependence characteristic data to the image generation unit 105, the region detection unit 107, the print image generation unit 108, and the reproduction processing data generation unit 109. The user operates the operation unit 103 to instruct changing of the deflection angle dependency characteristic data. The changing unit 104 changes the declination dependence characteristic data acquired by the declination dependence characteristic acquisition unit 102 according to the operation signal sent from the operation unit 103. The changing unit 104 may be realized by an information processing device such as a CPU, or may be realized by an electronic circuit or an electric circuit.

  Based on the declination dependence characteristic data of each subject in the plurality of areas acquired by the declination dependence characteristic acquisition unit 102, the area detection unit 107 detects an area of the subject whose luminance variance value with respect to the angle is smaller than a predetermined value. Detect from image data to be printed. The subject region is preferably divided into regions such as the sky in the image, the person, the furniture, the metal fittings in the furniture, and the necklace worn by the person, and the dispersion value is evaluated. Alternatively, the dispersion value may be evaluated by dividing the region from the color connection in the image, the spatial frequency, and the like. Further, a plurality of divisions into the same size may be performed, and a variance value of each divided area may be evaluated. For example, the variance value may be evaluated by dividing the same subject such as a necklace and a metal fitting into a plurality of predetermined sizes. The user may select image data to be printed from the image data acquired by the image acquisition unit 101. Further, image data with an imaging angle of a predetermined angle may be automatically selected as image data to be printed. If the image acquisition unit 101 acquires only one piece of image data, the acquired image data becomes image data to be printed.

  The image generation unit 105 is based on the declination dependency characteristic data acquired by the declination dependency characteristic acquisition unit 102, and the image has a luminance when the luminance of a plurality of areas of the image data to be printed is viewed from the same angle. Data is generated for each of a plurality of angles. In addition, the image generation unit 105 generates, based on the declination dependence characteristic data of the region detected by the region detection unit 107, image data that has brightness when viewed from a certain angle. It may be generated every time. That is, the image other than the region detected by the region detection unit 107 is an image of image data to be printed, and the detected image of the region includes a plurality of image data of an image having luminance when viewed from a certain angle. You may produce | generate for every angle.

  In addition, when there are a plurality of areas detected by the area detection unit 107, based on the declination dependence characteristic data of the subject in each area, the brightness when the brightness of each detected area is viewed from the same angle Image data is generated for each of a plurality of angles. That is, the image other than the region detected by the region detection unit 107 is an image of image data to be printed, and the detected image of each region is image data of an image having luminance when viewed from the same angle. May be generated for each of a plurality of luminances. The display unit 106 displays the image data for each of the plurality of angles generated by the image generation unit 105 in the order of angles. The display unit 106 includes a display such as liquid crystal, organic EL, or plasma, and a control unit that controls the display. The control unit may be realized by an information processing device such as a CPU. Further, the area detection unit 107 and the image generation unit 105 may be realized by an information processing device such as a CPU, or may be realized by an electronic circuit or an electric circuit.

  The print image generation unit 108 generates print image data from image data to be printed. The reproduction processing data generation unit 109 generates reproduction processing data for reproducing the deflection angle dependent characteristic data on each region in the printed print image. The print image generation unit 108 and the reproduction processing data generation unit 109 may be realized by an information processing device such as a CPU, or may be realized by an electronic circuit or an electric circuit. The printing apparatus 110 prints an image on the basis of the print image data generated by the print image generation unit 108 and the reproduction process data generated by the reproduction process data generation unit 109, and reproduces the texture that reproduces the argument-dependent characteristic data. I do.

  FIG. 2 is a diagram for explaining declination dependence characteristic data. The declination-dependent characteristic data indicates the luminance of the subject viewed from a plurality of different angles. We often experience that the brightness of a subject varies depending on the viewing angle when the incident angle of light incident on the subject is constant. When the angle formed between the normal vector of the subject and the detection direction is θ, the brightness of the reflected light varies depending on the angle. In general, when the detection direction for detecting the light of the subject is the direction of specular reflection light, that is, when θ is the angle of specular reflection light, the luminance is highest, and as θ deviates from the angle of specular reflection light, the luminance Becomes smaller. That is, the declination dependence characteristic data is distributed. For this reason, when the angle at which the imaging object is viewed changes, the brightness of each region changes accordingly. ΔI indicates the maximum difference in luminance, and Δθ indicates the width of θ at which the luminance is higher than the luminance on the diffusion uniform surface. A surface that is very light-scattering and has no gloss is also referred to as a uniform diffusing surface, a Lambertian surface, or a Lambertian surface, and this surface has the same luminance when viewed from any angle. The angle dependence characteristic data can be quantified by the difference in angle dependence with this surface. The declination dependence characteristic can be quantified by the degree of increase in luminance from a uniform diffusion surface at a specific angle and the width (dispersion value) of the increase region. For example, as the variance value increases, ΔI decreases and Δθ increases. Further, as the dispersion value decreases, ΔI increases and Δθ decreases. The lower the variance value, the brighter the image at a specific angle. Therefore, the area detector 107 detects an area where the variance value is smaller than a predetermined value.

  FIG. 3 shows an example of the configuration of the declination dependence characteristic acquisition unit 102. The declination dependency characteristic acquisition unit 102 includes a region luminance acquisition unit 121, an declination dependency characteristic pattern holding unit 122, and a calculation unit 123. The area luminance acquisition unit 121 acquires a plurality of luminances of the subject in each area of the plurality of image data acquired by the image acquisition unit 101. In addition, the area luminance acquisition unit 121 acquires an imaging angle obtained by imaging a plurality of acquired image data. The area luminance acquisition unit 121 acquires the luminance value of the same subject area from each image data when the same imaging object acquires a plurality of pieces of image data captured from different directions. . When a plurality of image data obtained by capturing the same object from different directions is acquired, the same subject may not have been captured by the same pixel of the image sensor, so the brightness of the same subject area, not the area of the same pixel Get multiple values. This same subject area can be detected by a block matching method or the like. The area luminance acquisition unit 121 outputs a plurality of luminance values of each subject area to the calculation unit 123. In addition, the region luminance acquisition unit 121 outputs the imaging angles of a plurality of image data captured from different directions to the calculation unit 123.

  Moreover, the area | region brightness | luminance acquisition part 121 is the brightness | luminance of the area | region of the same pixel from each image data, when the several image data by which the same imaging target object which the image acquisition part 101 is moving imaged was acquired continuously is acquired. Get the value. In this case, it is preferable that the imaging device is fixed, and the same imaging target object is a subject moving with a temporal change such as lake water. The area luminance acquisition unit 121 outputs the acquired plurality of luminances of each area to the calculation unit 123. In addition, the region luminance acquisition unit 121 outputs the imaging time of a plurality of image data captured continuously to the calculation unit 123.

  The declination dependence characteristic pattern holding unit 122 holds a plurality of declination dependence characteristic patterns. That is, various declination-dependent characteristic patterns are retained. When the image acquisition unit 101 acquires a plurality of pieces of image data in which the same imaging target is imaged from different directions, the calculation unit 123 calculates a plurality of luminances of the subject in each region acquired by the region luminance acquisition unit 121. Based on each imaging angle, declination-dependent characteristic data of the subject in each region is calculated. The calculation unit 123 may calculate declination-dependent characteristic data of the subject in each region using a spline function from a plurality of luminances and imaging angles of the subject in each region. Further, the calculation unit 123 may calculate the declination-dependent characteristic data from a plurality of brightnesses and imaging angles of the subject in each region and information indicating a normal distribution. In addition, the calculation unit 123 includes a declination dependence characteristic that most closely matches a plurality of luminance and imaging angles of the subject in each region among the declination dependence characteristic patterns held by the declination dependence characteristic pattern holding unit 122. The deviation-dependent characteristic data may be calculated by selecting a pattern.

  In addition, when the calculation unit 123 acquires a plurality of pieces of image data in which the same imaging target object in which the image acquisition unit 101 is moving is continuously captured, the calculation unit 123 acquires a plurality of regions acquired by the region luminance acquisition unit 121. The time-dependent characteristic data indicating the luminance of the subject at different times may be calculated as the declination-dependent characteristic data from the brightness and the imaging time. Further, the calculation unit 123 may calculate time-dependent characteristic data of a subject in each area as declination-dependent characteristic data using a spline function from a plurality of luminances and imaging times of the respective areas. Further, the calculation unit 123 may convert the time-dependent characteristic data into the declination-dependent characteristic data from a plurality of luminances and imaging times of the subjects in the respective areas and information indicating a normal distribution. The calculation unit 123 also has a plurality of declination dependence characteristics held by the declination dependence characteristic pattern holding unit 122 when the plurality of luminances and imaging times of each area are viewed as the luminance and angle of each area. The declination dependence characteristic data may be calculated by selecting the declination dependence characteristic pattern that most closely matches the pattern.

  FIG. 4 shows an example of declination dependence characteristic data calculated by the calculation unit 123. Black dots indicate a plurality of luminance values of a subject in a certain area obtained from actually captured image data. The luminance values indicated by the black dots are the luminance value of the subject in the certain area obtained from the image data captured at the imaging angle θa and the certain area obtained from the image data captured at the imaging angle θb. The luminance value of the subject and the luminance value of the subject in the certain area obtained from the image data captured at the imaging angle θc are shown. That is, the image data acquired by the image acquisition unit 101 is image data obtained by capturing the same imaging target at each of the imaging angle θa, the imaging angle θb, and the imaging angle θc. The calculating unit 123 may calculate the declination-dependent characteristic data shown in FIG. 4 by calculating the luminance value at each angle from the luminance value indicated by each black point and the imaging angle using a spline function. In addition, the calculation unit 123 selects a declination dependence specific pattern that most closely matches the luminance value and the imaging angle indicated by the black dot from among the declination dependence characteristic patterns held by the declination dependence characteristic pattern holding unit 122. The angle dependence characteristic data shown in FIG. 4 may be calculated.

  FIG. 5 is a diagram for explaining generation of image data by the image generation unit 105. FIG. 5 shows the declination-dependent characteristic data of the subjects in the A area, the B area, and the C area, respectively. The image generation unit 105 determines the luminance of the subjects in the plurality of regions of the image data to be printed from the same angle based on the deflection angle dependency characteristic data of the subject in each region acquired by the deflection angle dependency characteristic acquisition unit 102. Image data that is luminance when viewed is generated for each of a plurality of angles. That is, based on the declination dependence characteristic data of the subject in each region, image data that produces the luminance viewed from each angle is generated.

  Here, a case where image data for each of a plurality of angles is generated from image data captured at the imaging angle θ5 among the image data acquired by the image acquisition unit 101 will be described. Image data captured at this imaging angle θ5 is referred to as image data θ5. First, the image acquisition unit 101 generates image data having brightness as viewed from the imaging angle θ1 from the image data θ5 based on the deviation angle dependent characteristic data of the subject in each region. Specifically, the image data of the subject in the A area when imaged from θ1 is calculated based on the deviation angle dependent characteristic data of the subject in the A region of the image data θ5. That is, when viewing the declination dependence characteristic data of the subject in area A, the brightness of θ1 is lower than the brightness of θ5, so the brightness of the subject in area A in the image data θ5 is the same as the brightness of the subject in area A at the imaging angle θ1. Thus, the brightness of the image data of the subject in the area A of the image data θ5 is lowered. That is, from the ratio of the luminance at θ5 and the luminance at θ1 of the declination dependence characteristic data of the subject in the A region and the image data of the subject in the A region of the image data θ5, the subject in the A region has the luminance at θ1. Image data is calculated.

  Similarly, based on the deflection angle dependency characteristic data of the subject in the B region of the image data θ5, the image data of the subject in the B region that has the luminance viewed from θ1 is calculated. That is, the image data of the subject in the area B of the image data θ5 is calculated so that the brightness of the image data of the subject in the area B of the image data θ5 becomes the brightness of the subject in the area A at the imaging angle θ1. Similarly, based on the deviation angle dependent characteristic data of the subject in the C area of the image data θ5, the image data of the subject in the C area such that the luminance is viewed from θ1 is calculated. That is, the image data of the subject in the C area of the image data θ5 is calculated so that the brightness of the image data of the subject in the C area of the image data θ5 becomes the brightness of the subject of the C area at the imaging angle θ1. In this way, the image data of θ1 can be generated based on the deflection angle dependence characteristic data of the subject in each region. Similarly, image data at respective angles such as θ2, θ3... Can be generated. Note that the image data of θ5 does not have to be calculated because it is originally present.

  The image generation unit 105 does not change the image data of the area other than the area detected by the area detection unit 107 in the image data to be printed, and changes the brightness of the image data of the detected area. The image data changed based on the declination dependence characteristic data may be generated for each angle. That is, based on the deviation angle dependent characteristic data of the subject in the area of the image data to be printed, which is detected by the area detection unit 107, the image data that is the brightness when the brightness of the detected area is viewed from a certain angle, You may produce | generate for every angle. Specifically, among the image data to be printed, the image data of the area other than the detected area is not changed, and the brightness of the image of the area is viewed from a certain angle based on the declination dependence characteristics of the detected area. Image data that provides brightness may be generated for each of a plurality of angles. In addition, when the region detection unit 107 detects a plurality of regions, the image generation unit 105 determines the angle at which the luminance of each detected region is the same based on the deviation angle dependent characteristic data of each detected region. The image data having the brightness when viewed from the angle may be generated for each angle.

  The display unit 106 displays the plurality of image data generated by the image generation unit 105 in order of angle. For example, the image data at the angle θ1 is displayed first, the image data at the angle θ2 is displayed first, and then the image data at the angle θ3 is displayed.

  FIG. 6 illustrates an example of the print image generation unit 108, the reproduction processing data generation unit 109, and the printing apparatus 110. The print image generation unit 108 includes an image generation unit 131 and a thinning processing unit 132. In addition, the reproduction processing data generation unit 109 includes a position data generation unit 133. In addition, the printing apparatus 110 includes a printing unit 141 and a reproduction processing unit 142.

  The image generation unit 131 of the print image generation unit 108 includes the image data for the right eye of the region from the image data of the region detected by the region detection unit 107 among the image data to be printed acquired by the image acquisition unit 101. Image data for the left eye is generated. It is necessary to embed image data at a plurality of angles such as for the right eye and for the left eye in the same pixel region corresponding to the size of the lenticular lens. By thinning out the image, a plurality of angle image data can be embedded in the same pixel region. For this purpose, the thinning processing unit 132 performs thinning processing on the generated image data for the right eye and image data for the left eye. The resolution of the image data of the area detected by the area detection unit 107 is determined by thinning out the image data for the right eye and the image data for the left eye, and the resolution of the image data obtained by combining the image data for the right eye and the image data for the left eye. Can be the same. In addition, the thinning processing unit 132, when the frequency of the brightness difference value between the right-eye image data and the left-eye image data is higher than the threshold value, the brightness between the right-eye image data and the left-eye image data. The pixel value of any pixel other than the position where the difference of the peaks is thinned out.

  Then, the print image generation unit 108 generates print image data from the image data to be printed acquired by the image acquisition unit 101 and the image data for the right eye and the left eye thinned by the thinning processing unit 132. Specifically, the print image generation unit 108 determines that the image data of the region detected by the region detection unit 107 among the image data of the image to be printed is the image data of the right eye and the image data of the left eye. Print image data that generates image data obtained by alternately combining the image data is generated. Further, the print image generation unit 108 may combine the right-eye image data and the left-eye image data alternately in the horizontal direction. In addition, since the lenticular lens is added to the area detected by the area detection unit 107, the print image generation unit 108 uses the printing apparatus 110 to generate image data for the right eye at half the pitch of the lenticular convex lens. And image data for the left eye are alternately combined. The print image generation unit 108 outputs the generated print image to the printing unit 141 of the printing apparatus 110. The lenticular lens is composed of a plurality of convex lenses extending in the vertical direction. Further, the longitudinal side of the convex lens and the longitudinal side of the convex lens are in contact with each other. The pitch of the convex lens refers to the width of the convex lens in the short direction.

  The position data generation unit 133 of the reproduction processing data generation unit 109 indicates a region to which the lenticular lens is applied based on the region sent from the region detection unit 107, and a position to which the lens lenticular lens is applied such as the direction of the lenticular lens. Generate position data. The position data generation unit 133 may generate position data such that the lenticular lens is in the vertical direction of the convex lens. The vertical direction means a vertical direction when the user observes the print image, that is, a direction in which the neck is shaken vertically. This is because when the observer looks at the printed matter, the line of sight and the observation position change in the horizontal direction, not in the vertical direction. Further, the position data generation unit 133 generates position data of the lenticular lens such that the convex lens is aligned with the image for the right eye and the image for the left eye. The reproduction processing data generation unit 109 outputs the generated position data to the reproduction processing unit 142 of the printing apparatus 110.

  The printing unit 141 of the printing apparatus 110 prints the image of the print image data sent from the print image generation unit 108. That is, the printing unit 141 prints the image of the image data to be printed acquired by the image acquisition unit 101 in addition to the region detected by the region detection unit 107, and the right eye is included in the region detected by the region detection unit 107. Image data for the left eye and image data for the left eye are alternately printed at a half pitch of the convex lens of the lenticular lens. In addition, the printing unit 141 alternately prints the thinned-out image data for the right eye and the image data for the left eye in the area detected by the area detection unit 107. Further, when the frequency of the luminance difference value between the right-eye image data and the left-eye image data is higher than the threshold, the printing unit 141 determines that the luminance difference between the right-eye image data and the left-eye image data is The image data for the right eye and the left eye in which any pixel value other than the peak position is thinned is printed alternately. The printing unit 141 may perform printing by an inkjet method, a dot impact method, a dry electrophotographic method, or the like. The printing unit 141 may include a printing device such as a laser printer or an ink jet printer. Further, an information processing apparatus such as a CPU may cause a printing device to function as the printing unit 141 by a program.

  The reproduction processing unit 142 performs a process of artificially reproducing the declination-dependent characteristic data of the subject in the detected area on the subject area detected by the area detection unit 107 in the print image printed by the printing unit 141. Apply. Specifically, according to the position data sent from the reproduction processing data generation unit 109, a lenticular lens is applied on the area detected by the print image area detection unit 107. The reproduction processing unit 142 also adds a lenticular lens so that the convex lens of the lenticular lens is aligned with the right-eye image and the left-eye image printed on the detected area. The reproduction processing unit 142 may apply a lenticular lens that has already been formed on the print image, or may eject the glossy ink to form the lenticular lens on the print image. When the gloss ink is ejected to form a lenticular lens on the printed image, the reproduction processing unit 142 may be realized by a printing device such as an inkjet printer. In addition, when a lenticular lens that has already been formed is applied, the reproduction processing unit 142 may be realized by a mechanical structure that applies the lenticular lens on a print image and an information processing device that controls the mechanical structure.

  FIG. 7 is a diagram for explaining the reason why the image generation unit 131 generates image data for the right eye and the left eye. Here, for convenience of explanation, an image 205 captured by the camera 201 is disposed between the camera 201 and the imaging target object 202. When attention is paid to the A area, the camera 201 images the light of the subject in the A area of the imaging target 202. Specifically, the camera 201 images the light a0 from the A area. A1 on the image indicates an A area where the image is captured. A1 on this image appears in the same way on the left eye 203 and right eye 204 of the observer. That is, substantially the same light I is incident on the left eye 203 and the right eye 204.

  However, in reality, the light a1 from the A region is incident on the left eye 203, and the light a2 from the B region is incident on the right eye 204. That is, the observer sees different light between the left eye 203 and the right eye 204. Further, as the difference between the luminance of light entering the right eye 204 and the luminance of light entering the left eye 203 from the subject in the same region increases, the subject in the same region shines more brilliantly. appear. For example, when the luminance of the light a1 incident on the left eye 203 is high and the luminance of the light a2 incident on the right eye 204 is small, the area A appears to be a glittering area for the observer. However, when the image is taken by the camera 201, the image of the A area, that is, the A1 area does not appear to be shining. Therefore, the image data of the A1 area for the left eye and the image data of the A1 area for the right eye are generated from the image data of the A1 area. In this generation, image data of the A1 area for the left eye and the right eye is generated based on the deviation angle dependent characteristic data of the A1 area. That is, by using the declination-dependent characteristic data of the subject in the area A, the image data in which the brightness of the image data in the A1 area is shifted by the angle θx formed by a0 and a1 is generated. Image data for the left eye is generated. Similarly, using the declination dependence characteristic data of the subject in area A, image data is calculated such that the brightness of the image data in area A1 is shifted by the angle θy formed by a0 and a2. Thus, image data for the right eye in the A1 area is generated. As described above, the image data for the right eye and the left eye of each area is generated using the declination dependence characteristic data of the subject in each area.

  FIG. 8 shows an example of the relationship between the luminance difference between the image data for the right eye and the image data for the left eye and the pixel position. The horizontal axis indicates the pixel position, and the vertical axis indicates the luminance difference. The luminance difference between the image data for the right eye and the image data for the left eye means a difference in luminance between the same pixels. That is, the image data for the right eye and the left eye are generated from the image data of the area detected by the area detection unit 107, and for the right eye generated from the respective pixel values of the image data of the detected area. This is a value obtained by taking the difference in luminance between the pixel value and the pixel value for the left eye. Note that since the pixels are two-dimensionally arranged, a spatial frequency of the luminance difference in each pixel can be obtained, but FIG. 8 shows the relationship between the luminance difference in a certain line and the pixel position for convenience of explanation. Yes.

  The wave 211 has a high frequency of the luminance difference value between the image data for the right eye and the image data for the left eye, and the wave 212 has a frequency of the value of the luminance difference between the image data for the right eye and the image data for the left eye. Lower than 211. If the frequency of the brightness difference is high as in the wave 211, if the thinning processing unit 132 thins out the pixel values at a predetermined interval or randomly, there is a possibility that an image with reduced glitter will be obtained. That is, the larger the luminance difference between the image data for the right eye and the image data for the left eye, the more brightly it appears to humans. However, if the thinning processing unit 132 thins out at a predetermined interval or randomly, there is a possibility that the pixel values of the image data for the right eye and the left eye at which the luminance difference reaches a peak are thinned out. Therefore, when the frequency of the luminance difference between the image data for the right eye and the image data for the left eye is higher than the threshold value, the thinning processing unit 132 calculates the pixel values of the image data for the right eye and the left eye where the luminance difference peaks. Without thinning out, pixel values that do not have a peak luminance difference are thinned out. A black dot in the wave 211 indicates a luminance difference value at which the luminance difference reaches a peak. Therefore, the thinning-out processing unit 132 thins out any pixel value of the image data for the right eye and the left eye other than the position where the black spot exists. That is, the thinning-out processing unit 132 thins out the pixel values of the right-eye and left-eye image data other than the pixel values of the right-eye and left-eye image data at the position of the pixel having the black dot.

  When the frequency of the brightness difference value is low as in the wave 212, the glittering feeling of the image is not reduced as much as when the frequency of the brightness difference value is higher than the threshold even if the frequency difference is thinned out. Therefore, when the frequency of the luminance difference value between the right-eye image data and the left-eye image data is equal to or less than the threshold value, the thinning-out processing unit 132 selects the right-eye and left-eye image data at a predetermined interval. The pixel value of is thinned out. In this case, the thinning processing unit 132 may not be thinned at a predetermined interval, and may be thinned according to a certain rule or randomly.

  Although the method using a lenticular lens has been described so far as a method of expressing the declination dependence as printing, other methods having declination dependence characteristics can be applied. For example, an interference fringe pattern having a wavelength order of light can be provided in a specific area of the image, and reflection of light can be controlled in the angular direction. Moreover, micro unevenness | corrugation may be provided with a transparent ink, and reflection characteristics may give angle dependence. Angle dependency is realized by the right slope and the left slope of the unevenness of the transparent ink. Further, it is possible to use an ink in which a material having a micro reflection angle dependency is dispersed. When substances having a layer structure such as fine metal stays and mica are provided on the image surface in the ink, the reflected light can have an angle dependency due to the properties of these substances. A method for generating the interference pattern will be described below.

  FIG. 9 illustrates another example of the print image generation unit 108, the reproduction processing data generation unit 109, and the printing apparatus 110. The reproduction process data generation unit 109 includes a position data generation unit 151 and an interference pattern acquisition unit 152. The printing apparatus 110 includes a printing unit 161 and a film applying unit 162.

  The print image generation unit 108 outputs the image data to be printed acquired by the image acquisition unit 101 as print image data to the printing unit 161 of the printing apparatus 110 as it is. The position data generation unit 151 of the reproduction processing data generation unit 109 generates position data indicating the position of the region to which the glossy film having the interference fringes is applied based on the region detected by the region detection unit 107. In addition, when the region detection unit 107 detects a plurality of regions, the position data generation unit 151 performs different interference based on each region detected by the region detection unit 107 and the declination dependence characteristic data of each region. Position data indicating the position of each region to which the glossy film having stripes is applied is generated. The position data generation unit 151 generates position data indicating the position of each region to which a glossy film having different interference fringes is applied based on the deflection angle dependency characteristic data of each region acquired by the deflection angle dependency characteristic acquisition unit 102. It may be generated.

  The interference pattern acquisition unit 152 acquires an interference pattern corresponding to the declination dependence characteristic data of the subject in the area detected by the area detection unit 107. That is, the interference pattern acquisition unit 152 acquires an interference pattern that artificially represents the deflection angle dependence characteristic data of the subject in the region detected by the region detection unit 107. In addition, when the region detection unit 107 detects a plurality of regions, the interference pattern acquisition unit 152 acquires interference patterns corresponding to the detected deviation angle-dependent characteristic data of the subject in the respective regions. The interference pattern acquisition unit 152 may include a table in which interference patterns corresponding to the respective deflection angle dependency characteristic data are recorded. The interference pattern acquisition unit 152 detects the subject in the area detected by the area detection unit 107 from the table. An interference pattern corresponding to the declination dependence characteristic data may be acquired from the table. In addition, the interference pattern acquisition unit 152 may calculate an interference pattern according to the deviation-dependent characteristic data of the subject in the area detected by the area detection unit 107 by calculation. Further, the interference pattern acquisition unit 152 may acquire an interference pattern corresponding to the deflection angle dependency characteristic data of each region acquired by the deflection angle dependency characteristic acquisition unit 102. The reproduction processing data generation unit 109 outputs the position data generated by the position data generation unit 151 and the interference pattern acquired by the interference pattern acquisition unit 152 to the film application unit 162 of the printing apparatus 110.

  The printing unit 161 of the printing apparatus 110 prints the image of the print image data sent from the print image generation unit 108. The printing unit 161 may perform printing by an inkjet method, a dot impact method, a dry electrophotographic method, or the like. The printing unit 161 may include a printing device such as a laser printer or an ink jet printer. Further, an information processing apparatus such as a CPU may cause a printing device to function as the printing unit 161 by a program.

  The film applying unit 162 has a glossy film having interference fringes of an interference pattern corresponding to the deviation angle-dependent characteristic data of the subject in the region on the region detected by the region detecting unit 107 in the print image printed by the printing unit 141. Is granted. In addition, when the area detection unit 107 detects a plurality of areas, the film applying unit 162 sets the deviation angle dependent characteristic data of the subject in each area on each of the detected areas in the print image. A glossy film having interference fringes with corresponding interference patterns is applied. Specifically, the film application unit 162 is configured so that the region detection unit 107 in the print image printed by the printing unit 141 in accordance with the position data and the interference pattern of each region sent from the reproduction processing data generation unit 109. A glossy film having interference fringes of an interference pattern corresponding to the detected area is applied on the detected area.

  The glossy film may be applied by applying an ultraviolet ink on the printed image and causing the ultraviolet light to interfere with the ultraviolet ink, thereby giving a glossy film having interference fringes to the printed image. That is, the ultraviolet ink applied on the printed image becomes a glossy film. Moreover, the film provision part 162 may provide the glossy film which has the interference fringe already completed to a printing image.

  In addition, the film applying unit 162 applies a glossy film having interference fringes of an interference pattern corresponding to the deviation angle dependent characteristic data of each region on each region in the printed image printed by the printing unit 141. It's okay. Specifically, the film application unit 162 applies each region in the print image printed by the printing unit 141 according to the position data and the interference pattern of each region sent from the reproduction processing data generation unit 109. A glossy film having interference fringes of corresponding interference patterns in the respective regions is applied. The glossy film may be applied by applying an ultraviolet ink on the printed image and causing the ultraviolet light to interfere with the ultraviolet ink, thereby giving a glossy film having interference fringes to the printed image. Moreover, the film provision part 162 may provide the glossy film which has the interference fringe already completed to a printing image.

  FIG. 10 shows an example of the configuration of the film application unit 162. In particular, FIG. 10 shows an example of the configuration of the film application unit 162 that applies a glossy film having interference fringes by causing ultraviolet light to interfere on the ultraviolet ink 221. The film application unit 162 includes an irradiation unit 171, a half mirror 172, a digital micromirror device 173, and a DMD control unit 174. The irradiation unit 171 irradiates the half mirror 172 with ultraviolet light. Note that the irradiation unit 171 may irradiate light other than ultraviolet light. The half mirror 172 splits the irradiated light into two light fluxes. The half mirror 172 transmits a part of the irradiated ultraviolet light and reflects the remaining ultraviolet light to split it into two light beams. The half mirror 172 is preferably divided so that the intensity of transmitted ultraviolet light and the intensity of reflected ultraviolet light are approximately 1: 1. The ultraviolet light reflected from the half mirror 172 is incident on the digital micromirror device. Further, the ultraviolet light transmitted through the half mirror 172 enters the ultraviolet ink 221 applied on the printed image. Note that other ink such as gloss ink may be applied on the printed image instead of the ultraviolet ink.

  The digital micromirror device 173 has a large number of pixels composed of minute mirrors arranged two-dimensionally. By controlling the inclination of each of the plurality of pixels, the reflection angle of the reflected light is changed for each pixel, thereby creating an ON / OFF state for each pixel. The pixel in the ON state causes the reflected ultraviolet light to enter the ultraviolet ink 221. Further, the reflected UV light does not enter the UV ink 221 in the OFF state pixel. The DMD control unit 174 generates the interference pattern sent from the reproduction processing data generation unit 109 on the reflection surface of the digital micromirror device 173. Specifically, the DMD control unit 174 controls the ON / OFF state of each pixel of the digital micromirror device 173 so that the interference pattern transmitted from the reproduction processing data generation unit 109 is obtained. The DMD control unit 174 controls the ON / OFF state of each pixel based on the position data sent from the reproduction processing data generation unit 109. That is, the DMD control unit 174 controls the ON / OFF state of each pixel so that each interference pattern is generated in an area based on each position data sent from the reproduction processing data generation unit 109. The DMD control unit 174 may control the irradiation unit 171. The DMD control unit 174 may be realized by an information processing device such as a CPU.

  By causing the ultraviolet light transmitted through the half mirror 172 and the light reflected from the digital micromirror device 173 to interfere with each other on the ultraviolet ink 221, there are interference fringes of an interference pattern sent from the reproduction processing data generation unit 109. A glossy film is applied on the printed image. That is, the ultraviolet ink 221 becomes a glossy film. In this ultraviolet ink 221, the printing unit 161 may apply the ultraviolet ink 221 on the printed image, and the film applying unit 162 applies the ultraviolet ink 221 on the printed image. May be. Further, the ultraviolet ink 221 may be applied to a region on the print image corresponding to the region detected by the region detection unit 107, or may be applied to the entire region on the print image. Instead of applying the ultraviolet ink 221 on the printed image in advance, after the gloss film is generated by causing the ultraviolet light to interfere with the ultraviolet ink 221, the generated gloss film may be applied on the printed image. . The film applying unit 162 includes a plurality of glossy films having interference fringes with different interference patterns, and applies a glossy film corresponding to the interference pattern sent from the reproduction processing data generating unit 109. Also good. When the finished glossy film is applied on the print image, the film application unit 162 may be realized by a mechanical structure that applies the glossy film on the print image and an information processing device that controls the mechanical structure.

  6 and 9 show the configurations of the print image generation unit 108, the reproduction processing data generation unit 109, and the printing apparatus 110. The print image generation unit 108 and the reproduction processing data generation unit 109 are not limited to the printing apparatus 110. Depending on the type, the function may be changed. That is, when printing is performed by the printing apparatus 110 as shown in FIG. 6, the print image generation unit 108 and the reproduction processing data generation unit 109 operate with the functions as shown in FIG. Further, when printing is performed by the printing apparatus 110 as shown in FIG. 9, the print image generation unit 108 and the reproduction processing data generation unit 109 operate with the functions as shown in FIG.

  Next, the operation of the image forming apparatus 100 will be described. When the image acquisition unit 101 acquires the image data, the image acquisition unit 101 outputs the acquired image data to the declination dependence characteristic acquisition unit 102. The declination-dependent characteristic acquisition unit 102 acquires declination-dependent characteristic data of each subject in a plurality of regions of the image data from the acquired image data. Here, the declination-dependent characteristic acquisition unit 102 may calculate and acquire declination-dependent characteristic data of the subject in each area according to the printing performance of the printing apparatus 110. In other words, the declination dependence characteristic data obtained as it is from the image data may not be reproduced as it is by the printing apparatus 110, and therefore, the declination dependence characteristic data that can be reproduced by the printing apparatus 110 is changed. Note that the user may be able to select the type of the printing apparatus 110 that prints an image, and the declination dependence characteristic acquisition unit 102 calculates declination dependence characteristic data according to the performance of the selected printing apparatus 110. May be. The case of the lenticular lens method will be described as a specific example of printing performance. It is known that a natural image can be obtained by increasing the number of images arranged under one lenticular lens and arranging not only the right and left eyes but also an intermediate angle image. However, how many types of angle data can be arranged depends on the printing system capability such as the resolution of the printer and the size of the lenticular lens used.

  Then, the image generation unit 105 includes a plurality of regions of image data to be printed acquired by the image acquisition unit 101 based on the deflection angle dependency characteristic data of the subject in each region acquired by the deflection angle dependency characteristic acquisition unit 102. Are generated for each of a plurality of angles. In other words, a plurality of pieces of image data are generated based on the declination dependence characteristic data of the subject in each region so that the luminance is viewed from each angle. The display unit 106 displays the image data for each angle generated by the image generation unit 105 in the order of the angles. As a result, the image data to be printed is displayed at the brightness viewed from each angle, and it is possible to confirm in advance how the image to be printed actually looks before printing. Note that the image generation unit 105 generates, based on the declination dependence characteristic data of the area detected by the area detection unit 107, image data that has the brightness when the brightness of the detected area is viewed from a certain angle. It may be generated every time. Accordingly, it is possible to generate image data that accurately reproduces an image obtained by viewing an image to be printed from different angles. In other words, since the printed image is reproduced in the area detected by the area detection unit 107, the deviation dependence characteristic data of the area is reproduced for each angle based on the deviation dependence characteristic data of the detected area. By generating image data in which the brightness of the area is changed, it is possible to reproduce an actually printed image.

  The user confirms whether or not appropriate declination-dependent characteristic data is reproduced while viewing the image data for each angle sequentially displayed on the display unit 106. When the user determines that the appropriate declination dependence characteristic data has not been reproduced, the user can instruct to change the declination dependence characteristic data of each region by operating the operation unit 103. In accordance with the instruction, the angle dependence characteristic data of each region is changed. As a method for this change, for example, the dispersion value of the luminance with respect to the angle in the declination dependence characteristic data is increased or decreased. Then, the image generation unit 105 generates image data for each angle based on the declination dependence characteristic data of each area after the change. Then, the display unit 106 displays the generated plurality of image data in the order of angles. Thus, by viewing the displayed image, it can be changed to appropriate declination dependence characteristic data.

  The area detection unit 107 detects a subject area in which the variance value of luminance with respect to the angle is smaller than a predetermined value based on the deviation angle dependence characteristic data of the subject in each area acquired by the deflection angle dependence characteristic acquisition unit 102. Here, when the angle dependency characteristic data is changed by the changing unit 104, the area detection unit 107 calculates the luminance dispersion value with respect to the angle based on the angle dependency characteristic data of the subject in each area after the change. A subject area smaller than a predetermined value may be detected.

  Then, the print image generation unit 108 generates print image data from the image data to be printed acquired by the image acquisition unit 101. In addition, the reproduction process data generation unit 109 generates reproduction process data for reproducing the argument-dependent characteristic data on each region in the printed print image. Based on the print image data generated by the print image generation unit 108 and the reproduction processing data generated by the reproduction processing data generation unit 109, the printing apparatus 110 prints an image and performs texture processing that reproduces the deflection angle dependent characteristic data. .

  Here, operations of the print image generation unit 108, the reproduction processing data generation unit 109, and the printing apparatus 110 when an image is printed by the printing apparatus 110 illustrated in FIG. 6 will be described. The image generation unit 131 of the print image generation unit 108 generates right-eye image data and left-eye image data from the image data of the region detected by the region detection unit 107. Then, the thinning processing unit 132 performs thinning processing on the generated right-eye image data and left-eye image data. At this time, if the frequency of the luminance difference value between the image data for the right eye and the image data for the left eye is higher than the threshold, the thinning processing unit 132 determines the luminance difference between the image data for the right eye and the image data for the left eye. The pixel value of any pixel other than the position where becomes the peak is thinned out. Then, the print image generation unit 108 generates print image data from the image data to be printed acquired by the image acquisition unit 101 and the image data for the right eye and the image data for the left eye thinned by the thinning processing unit 132. In other words, among the image data to be printed, the image data of the region detected by the region detection unit 107 is a print image in which the image data for the right eye and the image data for the left eye are alternately combined. Generate data.

  The position data generation unit 133 of the reproduction processing data generation unit 109 indicates a region to which the lenticular lens is applied based on the region sent from the region detection unit 107, and a position to which the lens lenticular lens is applied such as the direction of the lenticular lens. Generate position data. Further, the position data generation unit 133 generates position data of the lenticular lens in which the pitch of the convex lens is matched with the image for the right eye and the image for the left eye as reproduction processing data.

  Then, the printing unit 141 of the printing apparatus 110 prints the image of the print image data sent from the print image generation unit 108. The reproduction processing unit 142 performs a process of artificially reproducing the declination-dependent characteristic data of the subject in the detected area on the subject area detected by the area detection unit 107 in the print image printed by the printing unit 141. Apply. Specifically, the reproduction processing unit 142 applies a lenticular lens on the area detected by the print image area detection unit 107 in accordance with the position data sent from the reproduction processing data generation unit 109. Accordingly, the reproduction processing unit 142 can apply the lenticular lens so that the convex lens of the lenticular lens is aligned with the right-eye image and the left-eye image printed on the detected area. In addition, the right-eye image can be shown to the viewer's right eye, and the left-eye image can be shown to the viewer's left eye, so that the deflection angle-dependent characteristic data can be reproduced. Therefore, it is possible to form an image in which the area that glitters changes depending on the viewing angle.

  In addition, since the lenticular lens is applied to a partial area of the print image, it is possible to prevent deterioration in image quality. When lenticulars are provided in all areas of the printed image, the right-eye image and the left-eye image are printed alternately over the entire range, leading to a reduction in resolution and image quality. However, since the lenticular lens is provided only for the glittering region, the image quality is not unnecessarily lowered.

  Here, operations of the print image generation unit 108, the reproduction processing data generation unit 109, and the printing apparatus 110 when an image is printed by the printing apparatus 110 illustrated in FIG. 9 will be described. The print image generation unit 108 outputs the image data to be printed acquired by the image acquisition unit 101 as print image data to the printing unit 161 of the printing apparatus 110 as it is. The position data generation unit 151 of the reproduction processing data generation unit 109 generates position data indicating the position of the region to which the gloss detection film having the interference fringes is applied based on the detection region. Further, the interference pattern acquisition unit 152 of the reproduction processing data generation unit 109 acquires an interference pattern corresponding to the declination dependence characteristic data of the subject in the area detected by the area detection unit 107. In addition, when the area detection unit 107 detects a plurality of areas, an interference pattern corresponding to the declination dependence characteristic data of the subject in each of the areas is acquired. The reproduction processing data generation unit 109 outputs the position data generated by the position data generation unit 151 and the interference pattern acquired by the interference pattern acquisition unit 152 to the film application unit 162 as reproduction processing data.

  The printing unit 161 of the printing apparatus 110 prints the print image data sent from the print image generation unit 108. The film applying unit 162 has a glossy film having interference fringes of an interference pattern corresponding to the deviation angle-dependent characteristic data of the subject in the region on the region detected by the region detecting unit 107 in the print image printed by the printing unit 141. Is granted. In addition, when the area detection unit 107 detects a plurality of areas, the film applying unit 162 sets the deviation angle dependent characteristic data of the subject in each area on each of the detected areas in the print image. A glossy film having interference fringes with corresponding interference patterns is applied. Specifically, the film application unit 162 is configured so that the region detection unit 107 in the print image printed by the printing unit 141 in accordance with the position data and the interference pattern of each region sent from the reproduction processing data generation unit 109. A glossy film having interference fringes of an interference pattern corresponding to the deviation angle-dependent characteristic data of the area is applied on the detected area. As a result, the angle-dependent characteristic data can be reproduced for each area, and an image in which a glittering area changes depending on the viewing angle can be formed. In addition, an information processing apparatus such as a CPU that reads a predetermined program may function as the image forming apparatus 100.

  As mentioned above, although this invention was demonstrated using embodiment, the technical scope of this invention is not limited to the range as described in the said embodiment. It will be apparent to those skilled in the art that various changes or improvements can be added to the above-described embodiment. It is apparent from the scope of the claims that the embodiments added with appropriate changes or improvements can also be included in the technical scope of the present invention.

  The order of execution of each process such as operations, procedures, steps, and stages in the apparatus, system, program, and method shown in the claims, the description, and the drawings is particularly “before” or “prior to”. It should be noted that the output can be realized in any order unless the output of the previous process is used in the subsequent process. Regarding the operation flow in the claims, the description, and the drawings, even if it is described using “first”, “next”, etc. for convenience, it means that it is essential to carry out in this order. It is not a thing.

1 shows an example of an image forming apparatus 100 according to the present embodiment. The figure for demonstrating deflection angle dependence characteristic data is shown. An example of a configuration of the declination dependence characteristic acquisition unit 102 is shown. An example of declination dependence characteristic data calculated by the calculation unit 123 is shown. The figure for demonstrating the production | generation of the image data of the image generation part 105 is shown. An example of the print image generation unit 108, the reproduction processing data generation unit 109, and the printing apparatus 110 is shown. The figure for demonstrating the reason the image generation part 131 produces | generates the image data for right eyes and left eyes is shown. An example of the relationship between the luminance difference between the image data for the right eye and the image data for the left eye and the pixel position is shown. Another example of the print image generation unit 108, the reproduction processing data generation unit 109, and the printing apparatus 110 is shown. An example of the structure of the film provision part 162 is shown.

DESCRIPTION OF SYMBOLS 100 Image forming apparatus 101 Image acquisition part 102 Declination dependence characteristic acquisition part 103 Operation part 104 Change part 105 Image generation part 106 Display part 107 Area detection part 108 Print image generation part 109 Reproduction process data generation part 110 Printing apparatus 121 Area luminance acquisition Unit 122 declination-dependent characteristic pattern holding unit 123 calculation unit 131 image generation unit 132 thinning processing unit 133 position data generation unit 141 printing unit 142 reproduction processing unit 151 position data generation unit 152 interference pattern acquisition unit 161 printing unit 162 film application unit 171 Irradiation unit 172 Half mirror 173 Digital micromirror device 174 DMD control unit 201 Camera 202 Imaging object 203 Left eye 204 Right eye 205 Image 211 Wave 212 Wave 221 UV ink

Claims (8)

An image acquisition unit for acquiring image data;
A declination-dependent characteristic acquisition unit that acquires declination-dependent characteristic data indicating the luminance of the subject viewed from a plurality of different angles of the subject in each region of the image data from the image data;
A printing unit for printing an image of the image data acquired by the image acquisition unit;
An interference pattern acquisition unit that acquires different interference patterns according to the declination dependence characteristic data of the respective regions;
An image forming apparatus comprising: a film applying unit that applies a glossy film having interference fringes of the interference pattern on each of the regions in the image printed by the printing unit. An area detection unit that detects an area of a subject having a luminance dispersion value with respect to an angle smaller than a predetermined value based on the declination dependence characteristic data;
The interference pattern acquisition unit
According to the declination dependence characteristic data of the region detected by the region detection unit to obtain a different interference pattern,
The film applying unit is
The image forming apparatus according to claim 1, wherein a glossy film having interference fringes of the interference pattern is provided on an area detected by the area detection unit in an image printed by the printing unit. The film applying unit is
An irradiating unit for irradiating light;
A half mirror that divides the light irradiated by the irradiation unit into two lights;
A digital micromirror device that reflects one light split by the half mirror;
The interference pattern is generated on a reflection surface of the digital micromirror device, the one light divided by the half mirror is reflected, the light reflected by the digital micromirror device, and the other divided by the half mirror The image forming apparatus according to claim 1, wherein a glossy film having interference fringes of the interference pattern is generated by causing the light of the light to interfere with each other on the ink. The film applying unit is
On the respective regions, ink is applied to the regions in the image printed by the printing unit, and the gloss film is generated by generating interference fringes of the interference pattern of the light on the ink. The image forming apparatus according to claim 1, wherein a glossy film having interference fringes of the interference pattern is applied. The image acquisition unit
Acquire multiple image data of the same object to be imaged from different directions,
The declination dependence characteristic acquisition unit
The luminance value of the same subject is acquired from each of the plurality of image data, and the declination-dependent characteristic data of the subject in each region is obtained from the plurality of luminance values of the same subject and the imaging direction in which the plurality of image data is captured. The image forming apparatus according to claim 1, which calculates The image acquisition unit
A plurality of image data obtained by continuously capturing the same moving object to be photographed are acquired,
The declination dependence characteristic acquisition unit
From the luminance value of the same region of the plurality of image data and the time when the plurality of image data was captured, time-dependent characteristic data indicating the luminance of the subject at different times is converted into the declination-dependent characteristic data, The image forming apparatus according to claim 1, wherein declination-dependent characteristic data for a subject in each region is calculated. Computer
An image acquisition unit for acquiring image data;
A declination-dependent characteristic acquisition unit that acquires declination-dependent characteristic data indicating the luminance of the subject viewed from a plurality of different angles of the subject in each region of the image data from the image data;
A printing unit for printing an image of the image data acquired by the image acquisition unit;
An interference pattern acquisition unit that acquires different interference patterns according to the declination dependence characteristic data of the respective regions;
A program that functions as a film applying unit that applies a glossy film having interference fringes of the interference pattern on each of the regions in the image printed by the printing unit. An image forming method in which a computer forms an image,
An image acquisition process for acquiring image data;
A declination-dependent characteristic acquisition step of acquiring declination-dependent characteristic data indicating the luminance of the subject viewed from a plurality of different angles of the subject in each region of the image data from the image data;
A printing step of printing an image of the image data acquired by the image acquisition step;
An interference pattern acquisition step of acquiring different interference patterns according to the declination dependence characteristic data of the respective regions;
An image forming method comprising: an applying step of applying a glossy film having interference fringes of the interference pattern on each of the regions in the image printed by the printing step.

Images