JP4487766B2 - Imaging apparatus and program - Google Patents

Description

  The present invention relates to an imaging apparatus and a program.

2. Description of the Related Art Conventionally, an imaging range in a digital camera is either horizontally long or vertically long depending on the shape of a CCD (Charge Coupled Device), which is an image sensor in the digital camera, or device settings. As an example, the aspect ratio in the case of NTSC (National Television System Committee) is 3: 4. For this reason, the user of the above-mentioned digital camera has taken an image with the composition that seems to be most suitable after holding it vertically or horizontally while checking the image pickup range displayed on the viewfinder or the like.
As described above, when the digital camera is readjusted in accordance with the vertical or horizontal composition, the camera cannot be stably held, and thus the captured image may be blurred due to camera shake or the like. As an example for solving this problem, there is a technique of capturing a subject in a square shape with a square CCD and then taking out an image having a vertical or horizontal shape (see Patent Document 1).
JP-A-10-155111

However, in the conventional technique such as Patent Document 1, it is possible to acquire a captured image having a vertical or horizontal composition without re-setting, but a special square CCD is required, and further a switching operation or the like is required. Therefore, it could not be said to be sufficient to maintain a stable holding state.
Also, since it is not possible to simultaneously obtain captured images with different vertical or horizontal composition during imaging, an image with the composition intended by the photographer may not be taken, and a momentary photo opportunity may be missed, and further development is desired. It was.

  Therefore, an object of the present invention is to provide an imaging apparatus that easily captures an image having a composition of vertical and horizontal without fear of camera shake.

In order to solve the above-mentioned problem, the invention according to claim 1 is an imaging apparatus having different aspect ratios of the captured image, an angle of view adjusting means for adjusting an angle of view of the captured image, and a first aspect ratio. a first image acquiring means for acquiring one image, the second image obtained by rearranging the ratio of vertical and horizontal of the one aspect ratio, adjusted to widen the angle of view after the first image acquired by the first image acquisition unit The image processing apparatus includes: a second image acquisition unit for acquiring; and a storage unit for storing the acquired image data of the first image and the second image.

  According to a second aspect of the present invention, in the first aspect of the present invention, a reference image acquisition unit that acquires a reference image that is an image in an imaging range common to the first image and the second image; Determination means for determining whether or not the second image is within the imaging range based on the aspect ratio of the captured image and the reference image when acquiring two images, and the second image acquisition means includes: The second image is acquired by adjusting the angle of view according to the determination result of the determination means.

  According to a third aspect of the present invention, in the first aspect of the invention, the storage unit stores in advance, as table information, an angle of view at the time of the second image acquisition corresponding to the angle of view at the time of acquisition of the first image. The second image acquisition means adjusts the angle of view in accordance with the angle of view at the time of acquisition of the first image and the table information, and acquires the second image.

According to a fourth aspect of the present invention, in the invention according to any one of the first to third aspects, the second image has the same imaging range obtained by rotating the first image by 90 degrees. To do.

  Invention of Claim 5 is further provided with the detection means which detects in the invention as described in any one of Claims 1-4 whether the said imaging device was imaged in any state of length or width, The storage means stores the acquired first image and second image as image data in a vertical or horizontal imaging state corresponding to the detection means.

  Furthermore, a program for realizing the main functions shown in the inventions described in claims 1 to 5 is provided for the computers of the imaging devices having different aspect ratios of the captured images (in claims 6 to 10). Described invention).

According to the first and sixth aspects of the invention, in addition to the normal first image, the second image having a composition different in the vertical or horizontal direction is acquired by adjusting the angle of view widely. Therefore, it is not necessary for the user to pick up and take a picture, and it is possible to prevent camera shake at the time of taking a picture, and it is possible to easily take an image having a composition of portrait and landscape.
In addition, a vertical or horizontal image can be obtained in a form that is easy for a user to hold, and by capturing both compositions at the same time, an instant photo opportunity is not missed.

  According to the second and seventh aspects of the invention, since the angle of view is adjusted to the maximum at the time of acquiring the second image, the second image having a different composition vertically or horizontally deteriorates with the angle of view adjustment. Acquisition can be suppressed, and a higher quality image can be acquired.

  According to the third and eighth aspects of the invention, information related to the angle of view at the time of obtaining the second image corresponding to the angle of view at the time of obtaining the first image is stored as table information, and the second image is based on the table information. Since the configuration is such that the angle of view is adjusted at the time of acquisition, it is possible to acquire captured images having vertical and horizontal compositions with a simpler configuration.

According to the fourth and ninth aspects of the present invention, since the second image has the same imaging range obtained by rotating the first image by 90 degrees, it is possible to easily obtain the vertically and horizontally captured images having the same imaging range. be able to.

  According to the fifth and tenth aspects of the present invention, since it is configured to detect whether the image is captured in the vertical or horizontal direction and store it when storing the image data, the captured image obtained by capturing the vertical and horizontal composition is stored. The image display at the time of confirmation and appreciation can be made accurate.

[First Embodiment]
Hereinafter, an embodiment of an imaging apparatus 1 according to the present invention will be described with reference to the drawings. The present invention is not limited to this embodiment. The embodiment of the present invention shows the most preferable mode of the present invention, and the terminology of the present invention is not limited to this.

  FIG. 1 is a block diagram illustrating basic components of the imaging apparatus 1. The imaging device 1 includes a control unit 10, an imaging unit 11, a display unit 12, a finder unit 13, an input unit 14, a memory card I / F 15, an image processing memory 16, a storage unit 17, a tilt sensor 18, and an external I / F 19. Each part is electrically connected to each other by a bus 20.

  The control unit 10 includes a CPU (Central Processing Unit), an internal RAM (Random Access Memory), a ROM (Read Only Memory), and the like (not shown), and the CPU stores the predetermined area of the internal RAM as a work area in the ROM. In accordance with various control programs or various data, control signals are sent to the above units to control the overall operation of the imaging apparatus 1. The storage area for the work area and various programs described above may be the storage unit 17 described later.

  Specifically, the control unit 10 includes an image pickup lens and a lens / mirror block such as a mirror, an image pickup device such as a CCD, and a drive system thereof, as well as a distance measurement sensor, a light amount sensor, an analog processing circuit, a signal processing circuit, and the like. The optical zoom of the unit 11 is adjusted, drive control during autofocus, shutter drive control, exposure, white balance, and the like are controlled. This imaging lens system includes a zoom lens system, and the angle of view is adjusted by changing the position of the moving lens in the zoom lens system according to the zoom-in / zoom-out operation. At that time, the control unit 10 monitors the current zoom magnification according to the position of the moving lens.

  Further, the control unit 10 sends the image data picked up by the image pickup unit 11 and subjected to signal processing to the image processing memory 16 for temporary storage. Then, the image data in the image processing memory 16 is sent to the display unit 12 or the finder unit 13 according to an instruction from the control unit 10 and displayed. Further, the control unit 10 compresses and encodes image data in the image processing memory 16 in response to an operation of a shutter button (not shown) provided in the input unit 14 and sends it to the memory card I / F 15. Record and save in file format on the memory card. The image data in the image processing memory 16 may be stored in a data area in the storage unit 17 to be described later.

  Further, the control unit 10 performs predetermined image processing on the image data in the image processing memory 16. The image processing performed here is enlargement / reduction processing, rotation processing, trimming processing, processing for measuring the length of the short side / long side of the image itself or a predetermined rectangular range, and comparing the two images There is a process to extract. The image processing may be performed by overlapping a plurality of processes. For example, the captured image data is subjected to trimming and enlargement / reduction processing, and the same angle of view adjustment as that of an optical zoom generally known as an electronic zoom is performed. Processing to be performed may be used.

  The display unit 12 includes, for example, an LCD (Liquid Crystal Display) and is used as a confirmation screen, an image playback screen, an input operation screen, and a message screen at the time of imaging. This is a high-definition display that is substantially the same as the resolution of the element.

  The finder unit 13 includes an objective lens to which light from the imaging direction is incident, a finder LCD that displays a frame, a field frame, or various data in accordance with instructions input from the control unit 10, and an incident light beam to a user. An eyepiece that leads to the eye, and a prism that guides the light from the objective lens and the LCD for the finder and guides it to the eyepiece. By checking the image from the finder unit 13, the user can easily know information related to imaging such as the imaging range (composition), aperture, and shutter speed. In addition, the structure which adds and displays a visual field frame and various data on the image imaged in the display part 12, and implement | achieves the function regarding the finder part 13 may be sufficient.

  The input unit 14 inputs various data and commands. In addition to a power button, a shutter button that can be pressed with a two-stage stroke of “half-press” or “full-press”, a normal shooting mode, and vertical and horizontal simultaneous shooting. A mode switching button for switching modes and the like, a selection button for performing various other settings, and the like are provided.

  The memory card I / F 15 is an interface to which a memory card (not shown) is detachably mounted, and transfers image data and the like to the memory card. The memory card is a detachable and non-volatile recording medium, and includes, for example, a smart medium, an IC card, and the like.

  The image processing memory 16 and the storage unit 17 are configured by an EEPROM (Electrically Erasable and Programmable ROM) which is an electrically erasable and rewritable nonvolatile memory, a flash memory, or the like. The image processing memory 16 is a memory for temporarily storing a reference image, which will be described later, and various types of image processing, and may be a volatile memory. The storage unit 17 includes a program storage area, a data storage area, and a work area. In this program area, a program for realizing the operation related to the present embodiment in the operation procedure shown in the flowchart described later is stored.

  The tilt sensor 18 includes, for example, two pendulums (not shown) that swing in the x direction and the y direction, respectively, and detects whether the user holds the imaging device 1 vertically or horizontally by the movement of the pendulum. And it transmits to the control part 10 as an inclination signal.

  The external I / F 19 is connected to a data processing device (such as a personal computer) as an external device, and controls transmission / reception of image data or various data performed based on a predetermined communication protocol by wired or wireless communication.

  Here, the details of the imaging unit 11 are shown in FIG. The imaging unit 11 includes a sensor unit 111, an optical system driving unit 112, a driving circuit 113, an imaging device 114, an analog processing circuit 115, an A / D circuit 116, a buffer 117, a signal processing circuit 118, a compression / decompression circuit 119, a lens 120, And image data captured in accordance with an instruction from the control unit 10 is converted into a predetermined format and output to the image processing memory 16.

  The sensor unit 111 is composed of a distance measuring circuit using an infrared light projecting unit and a light receiving unit (not shown) and an exposure circuit using a photoconductor such as CdS, and the control unit 10 determines the distance value and exposure value of an imaging target in the imaging direction. Output to.

  The optical system driving unit 112 is a circuit that drives a lens 120 and a shutter 121, which will be described later, by a stepping motor or the like, and an imaging element according to an instruction from the imaging unit 11 in accordance with a distance value or an exposure value obtained by the sensor unit 111 described above. The lens 120 is moved so that the image formed at 114 is focused on the object to be imaged, and the exposure is controlled by the shutter 121 so that the amount of light incident on the image sensor 114 is appropriate.

  The drive circuit 113 sequentially takes out the charge corresponding to each pixel photoelectrically converted by the image sensor 114 as an image signal, and gives it to the analog processing circuit 115. Specifically, the image sensor 114 is configured by an optical sensor such as a CCD or a CMOS (Complementary Metal Oxide Semiconductor), and outputs an image formed on the image sensor as an image signal corresponding to each pixel.

  The analog processing circuit 115 includes a CDS (Correlated Double Sampling) circuit that reduces noise in an image output from the image sensor 114, an AGC (Automatic Gain Control) circuit that performs signal amplification, and an input. The color separation circuit for separating the color difference components of the R, G, and B colors using the difference of the color difference signals in the image signal and the balance of the color difference components of the R, G, and B are made equal. Predetermined analog signal processing is performed by the adjusted white balance control circuit and the like, and an analog image signal is output to the A / D circuit 116.

  The A / D circuit 116 converts the analog image signal output from the analog processing circuit 115 into a digital image signal and outputs the digital image signal to the buffer 117. The buffer 117 temporarily stores the digital image signal converted by the A / D circuit 116 and sequentially outputs it to the signal processing circuit 118 or the compression / decompression circuit 119 in accordance with an instruction from the control unit 10.

  The signal processing circuit 118 is composed of a DSP (Digital Signal Processor) not shown, and performs various image processing such as luminance processing, color processing, or comparison detection processing with a predetermined threshold value on the input digital image signal. Output.

  The compression / decompression circuit 119 compresses or decodes the input digital image signal by a predetermined encoding method and outputs the compressed digital image signal to the control unit 10. Here, the compression / decompression may be reversible with each other, but may be performed irreversibly. For example, conversion to a JPEG (Joint Photographic Experts Group) image by processing such as ADCT (Adaptive Discrete Cosin Transform) and Huffman coding which is an entropy coding method may be used.

The lens 120 is a lens that can be adjusted so that an image to be imaged is imaged (focused) on the image sensor 114 described above. Note that the lens 120 as the angle-of-view adjusting unit is configured to be able to have an angle of view by a plurality of lens groups (not shown). Specifically, the lens group (focus) for focus adjustment from the subject side to the first group, the lens group (variator) for zooming (field angle adjustment) to the second group, and the zooming to the third group lens group for correcting an image with (compensator) includes a lens group for imaging (relay) to the fourth group, performs the focus adjustment of the image by the position adjustment of the view angle and the compensator according to the position adjustment of the variator. When adjusting the angle of view, the control unit 10 calculates the angle of view (magnification) according to the position of the variator based on the position and angle of view reference table stored in the storage unit 17 in advance. Further, a configuration for displaying on the finder unit 13 may be used.
The shutter 121 is arranged between the lens 120 and the image sensor 114, and is configured to be able to control the opening diameter and the opening / closing time (exposure time) by a plurality of shutter blades.

Next, the operation in the present embodiment will be described.
A program for realizing each function described in each flowchart described later is stored in the storage unit 17 or the memory card in the form of a readable program code, and the control unit 10 operates according to the program code. Are executed sequentially. In addition, the control unit 10 can sequentially execute an operation according to the program code transmitted from the outside via the external I / F 19. In other words, in addition to the program stored in the imaging apparatus 1, it is possible to realize an operation specific to the present embodiment using an externally supplied program or data.

  FIG. 3 is a flowchart showing an operation process according to the present embodiment, which is executed by the control unit 10 in response to an imaging instruction from the user by fully pressing the shutter button. When the imaging instruction is input from the input unit 14, the control unit 10 performs light amount control / focusing on the imaging target, acquires image data from the imaging unit 11 in step S11 as a first image acquisition unit, and performs tilting. An inclination signal from the sensor 18 is detected (step S12).

  After step S12, it is detected in step S13 as detection means whether the image is taken in the vertical or horizontal direction. In steps S14 and S15 as storage means, the image data is obtained as vertical or horizontal image data depending on the held state. It is stored in the storage unit 17. In the present embodiment, two vertical and horizontal states are detected and stored as an image of the state. However, the inclination detected by the inclination sensor 18 is stored in the storage unit 17 together with corresponding image data. The structure may be stored.

  After steps S14 and S15, the short side length p and the long side length q of the captured image data are calculated (step S16), and the long side of the image data is obtained by step S17 as the reference image acquisition means. The image processing memory 16 stores, as reference image data, image data in a range of width ± p / 2 from the center of the image, that is, in a captured range common to a captured image having a different aspect ratio.

  Here, the reference image stored in the image processing memory 16 is illustrated in FIGS. 5A and 6A. FIG. 5A shows the image captured by the imaging unit 11 in which the long side direction is the horizontal direction, the length is q, and the short side length is p, and FIG. 6A is the long side direction. FIG. In the figure, the reference image data stored in the image processing memory 16 is an image G1 in which the length of each side is p, and is data of overlapping image portions when the composition is changed vertically or horizontally. .

  After step S17, the angle of view to be imaged is widened (step S18), and the image data after the angle of view adjustment imaged by the imaging unit 11 is taken into the image processing memory 16 (step S19), and the above-mentioned reference image data The corresponding imaging range is extracted (step S20), and the length m of each side of the extracted reference image portion is obtained (step S21).

  Here, the extraction of the imaging range corresponding to the reference image data performed in steps S20 and S21 and the measurement of the length of each side are illustrated in FIGS. 5B and 6B. FIG. 5B and FIG. 6B are diagrams showing an image Ga captured with the angle of view widened from the above-described FIG. 5A and FIG. 6A. An image G2 in the image Ga is an image of a portion corresponding to the image G1, which is the reference image in FIGS. 5 (a) and 6 (a).

  The extraction of the image in step S20 has a reduced scale compared to the image before the image is expanded when the angle of view is expanded. Therefore, the reference image is sequentially reduced, and the reduced reference image and the captured image are combined. The comparison is performed by superimposing the centers at the same position and extracting a matching range. The portion corresponding to the reference image when the angle of view to be extracted is widened is the image G2 reduced from the image G1, and each side has a length of m shorter than p. Calculated by counting the number.

After step S21, an image (image G3 in FIG. 5 (b), FIG. 6 (b)) whose composition is different from the image G in the vertical or horizontal direction is the maximum in the image Ga by step S22 as a determination unit. An image with a short side length of m and a long side length of just p is set so that the aspect ratio is unchanged with respect to the angle of view, so that m: p = p: q It is determined based on whether or not the value of m matches p × p / q so as to satisfy the condition.

If it is determined in step S22 that m is larger, the process returns to step S18 so that the angle of view is further widened, and if it is determined that m is smaller, the angle of view is narrowed (step S22). S23), the process returns to step S19.

  After the adjustment in step S22 so that the image G3, which is an image whose composition is just different from the image Ga, is adjusted, exposure control / focusing on the image area of the reference image partial image G2 is performed (step S24). ), The image (image Ga) is captured again (step S25). Note that the exposure control / focusing in step S24 may be performed on the region of the image G3, and is not particularly limited.

  After step S25, an image (image G3) having a short side of ± m / 2 and a long side of p is cut out from the center of the recaptured image by step S26 as the second image acquisition unit. The size of the image is enlarged to the long side q and the short side p (step S27), and if the image is held horizontally by steps S29 and S30 as storage control to the storage means, the image is held vertically as a vertical image. If it is in the state, it is stored as a horizontal image in the storage unit 17 in a state associated with the image stored in steps S14 and S15, and the process ends.

  The state in which each image is associated and stored in the storage unit 17 is a state in which an identification code indicating a vertical or horizontal state is attached to a part of a file name assigned the same number and stored. Or a state in which the correspondence is stored as additional information in image data such as Exif (Exchangeable Image File Format).

  As described above, the imaging apparatus 1 first captures an image in a state of holding in accordance with an imaging instruction from the user, and images an image having a composition different from that of the image by adjusting the angle of view. . As a result, the imaging apparatus 1 does not need to be repositioned, so there is no fear of camera shake, and an image having a vertical and horizontal composition at the time of imaging instruction can be easily obtained.

  In addition, the imaging apparatus 1 can simultaneously acquire a vertical or horizontal image in an imaging form that is most suitable for the imaging apparatus based on a form that is easy for a user to hold or a positional relationship such as a strobe.

  In addition, since the imaging apparatus 1 is configured to acquire an image having a different composition with respect to the captured image in the holding state by adjusting the angle of view to the maximum, the captured image is deteriorated as the angle of view is adjusted. Can be suppressed.

  In addition, since the imaging device 1 is configured to store the captured images of the vertical or horizontal composition in association with each other, the corresponding image can be easily searched when confirming or viewing the captured image. .

[Modification 1]
Next, as a first modification example, a case where the processing differs depending on whether the vertical / horizontal simultaneous shooting mode is set or whether the vertical position or horizontal position is set will be described with reference to FIGS.
FIG. 4 is a flowchart showing that different processing is performed depending on the mode or the vertical position / horizontal position detected by the tilt sensor 18, which is executed by the control unit 10.

  First, the control unit 10 determines whether or not the vertical and horizontal simultaneous shooting mode is set (step S41). If the mode is not set, each process shown in steps S11 to S15 is performed as a normal shooting process (step S42), and the captured vertical or horizontal image is stored in the storage unit 17 and the process ends. .

If it is determined in step S41 that the vertical / horizontal simultaneous shooting mode is set, it is determined whether the installation of the imaging apparatus 1 is in the vertical position or the horizontal position (step S43). In the case of the horizontal position, in steps S11 to S30 described above, steps S12 to S16 are followed by steps S12, S14 and S16, and steps S27 to S29 are followed by steps S27 and S29. The vertical image is also stored (step S44), and the process ends.
Similarly, in the case of the vertical position, the processing subsequent to steps S12, S15 and S16 and the processing subsequent to steps S27 and S30 are performed, and the horizontal image is stored mainly with the vertical image (step S45). finish.

  As in the first modification described above, the imaging device 1 may be configured to separate the horizontal position main imaging process and the vertical position main imaging process, and vertical or horizontal shooting during normal shooting. The image may be stored according to the position.

[Modification 2]
Next, as a second modification, the imaging apparatus 1 stores in the storage unit 17 an angle of view corresponding to the angle of view of the image (first image) captured as the subject in step S11 and a range to be extracted in advance as an LUT (lookup table). The image may be stored, the angle of view may be adjusted with reference to the value, the second image may be acquired by the processing in step S24 and subsequent steps, and a vertical or horizontal image may be captured.

  In the case of the configuration like the above-described modification 2, it is not necessary to perform processing for adjusting the angle of view by recognizing the reference image in steps S16 to S23, and the present invention can be realized with a simpler configuration.

It is the figure which showed typically the functional structure of the imaging device 1 which is this invention. 2 is a diagram schematically illustrating an internal configuration of an imaging unit 11. FIG. 3 is a flowchart illustrating an imaging operation of the imaging apparatus 1 according to the present invention. 10 is a flowchart illustrating a modification of the imaging operation of the imaging device 1. (A) is a figure which illustrates image G picturized by image pick-up part 11, and (b) is a figure which illustrates image Ga after field angle adjustment. (A) is a figure which illustrates image G picturized by image pick-up part 11, and (b) is a figure which illustrates image Ga after field angle adjustment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Imaging device 10 Control part 11 Imaging part 12 Display part 13 Finder part 14 Input part 15 Memory card I / F
16 Image Processing Memory 17 Storage Unit 18 Inclination Sensor 19 External I / F
20 Bus 111 Sensor unit 112 Optical system drive unit 113 Drive circuit 114 Image sensor 115 Analog processing circuit 116 A / D circuit 117 Buffer 118 Signal processing circuit 119 Compression / decompression circuit 120 Lens 121 Shutter G, Ga, G1, G2, G3 Image

Claims (10)

In imaging devices with different aspect ratios of captured images,
An angle-of-view adjusting means for adjusting an angle of view of the captured image;
First image acquisition means for acquiring a first image having an aspect ratio;
A second image obtained by rearranging the ratio of vertical and horizontal of the one aspect ratio, and the second image acquiring means for acquiring a field angle wider adjusted to after the first image acquired by the first image acquisition unit,
Storage means for storing the acquired image data of the first image and the second image, respectively.
An imaging apparatus comprising: Based on a reference image acquisition unit that acquires a reference image that is an image in an imaging range common to the first image and the second image, and an aspect ratio of the captured image and the reference image when the second image is acquired Determination means for determining whether or not the second image falls within the imaging range,
The imaging apparatus according to claim 1, wherein the second image acquisition unit acquires the second image by adjusting the angle of view according to a determination result of the determination unit. The storage means stores the angle of view at the time of acquiring the second image according to the angle of view at the time of acquisition of the first image as table information in advance.
2. The imaging according to claim 1, wherein the second image acquisition unit acquires the second image by adjusting the angle of view according to the angle of view at the time of acquisition of the first image and the table information. apparatus. The imaging apparatus according to claim 1, wherein the second image has the same imaging range obtained by rotating the first image by 90 degrees. It further comprises detection means for detecting whether the image pickup apparatus has been picked up in a vertical or horizontal state,
5. The storage unit stores the acquired first image and second image as image data of a vertical or horizontal imaging state corresponding to the detection unit. 6. The imaging device described in 1. Computers of imaging devices with different aspect ratios of captured images
An angle-of-view adjusting means for adjusting an angle of view of the captured image;
First image acquisition means for acquiring a first image having an aspect ratio;
Second image acquisition means for acquiring a second image obtained by switching the aspect ratio of the one aspect ratio by widely adjusting the angle of view after the first image acquisition by the first image acquisition means;
Storage means for storing the acquired image data of the first image and the second image, respectively.
Program to function as.   Based on a reference image acquisition unit that acquires a reference image that is an image in an imaging range common to the first image and the second image, and an aspect ratio of the captured image and the reference image when the second image is acquired Functioning as a determination unit that determines whether or not the second image falls within the imaging range, and the second image acquisition unit adjusts the angle of view according to the determination result of the determination unit to adjust the second angle. The program according to claim 6, wherein an image is acquired. The storage means stores the angle of view at the time of acquiring the second image according to the angle of view at the time of acquisition of the first image as table information in advance.
The program according to claim 6, wherein the second image acquisition unit acquires the second image by adjusting the angle of view according to the angle of view at the time of acquisition of the first image and the table information. . The program according to any one of claims 6 to 8, wherein the second image has the same imaging range obtained by rotating the first image by 90 degrees. Function as detection means for detecting whether the imaging device is in the vertical or horizontal state,
The said storage means memorize | stores the acquired said 1st image and 2nd image as image data of the vertical or horizontal imaging state according to the said detection means. The program described in.

Images