JP4559964B2 - Image processing program - Google Patents

Description

  The present invention relates to a thumbnail creation program for creating thumbnail image data used for image selection and the like.

  2. Description of the Related Art Conventionally, image processing apparatuses that capture and display an image captured by an imaging apparatus using an imaging element such as a charge coupled device (CCD) or a complementary metal oxide semiconductor (CMOS) have been widely used. Many such image processing apparatuses have a function of displaying a captured image on a display device such as a monitor and displaying the captured image in an enlarged or reduced size by an operation of a mouse or a keyboard. It has been. For example, affine transformation is used for enlargement / reduction of an image.

  Further, in order to search for a desired image, many have a function of creating a reduced image (hereinafter referred to as a thumbnail) from a captured image and displaying a list of the thumbnails. Furthermore, there has been proposed a method for enlarging and displaying the reduced display image when the thumbnail display is left for a certain period of time with a specific thumbnail display selected (see, for example, Patent Document 1).

JP 2001-86433 A

  However, in general, thumbnails such as those in the conventional art are created by reducing the entire captured image. For this reason, for example, thumbnails created from captured images that continue to capture the same range, such as a surveillance camera, are substantially similar, and the operator can determine whether there has been a change just by looking at the thumbnail. It is difficult. For this reason, the operator has to repeatedly perform the operation of selecting thumbnails, displaying each image as a whole and confirming the contents of the images, and there is a problem that the operation becomes very complicated.

  The present invention has been made paying attention to the above circumstances, and an object of the present invention is to provide a thumbnail creation program capable of easily recognizing a desired object in an image from a thumbnail.

  In order to achieve the above object, a thumbnail creation program of the present invention is a thumbnail creation program for causing a computer to execute image processing for creating thumbnail image data, and a detection process for detecting a range of a human face from input image data; Determination processing for determining whether or not the face range is less than a predetermined number of pixels, and when the determination unit determines that the face range is less than the predetermined number of pixels, And editing processing for cutting out a range corresponding to the number of pixels of the thumbnail from the input image data and generating the thumbnail image data.

  In this thumbnail creation program, when creating a thumbnail of a person included in the input image data, if the detected face range is smaller than the predetermined number of pixels, this corresponds to the number of thumbnail pixels centered on the face range. The range to be cut out is cut out from the input image data to create a thumbnail. In this way, even when the detected face size is small, the face is not enlarged in accordance with the thumbnail size, so that it is possible to easily identify a person without becoming a mosaic. .

  The thumbnail creation program of the present invention is a thumbnail creation program for causing a computer to execute image processing for creating thumbnail image data, the detection processing for detecting a human face range from input image data, and the face range. Determination processing for determining whether or not the number of pixels is less than a predetermined number of pixels, and when the determination means determines that the range of the face is less than the predetermined number of pixels, An editing process for specifying the range assumed to be the whole body or the upper body and cutting out from the input image data to create the thumbnail image data.

  In the thumbnail creation program, when the detected face range is smaller than a predetermined number of pixels, a thumbnail representing a range assumed to be the whole body or upper body of the person is created based on the face range. In this way, even if the face size is small, by including the whole body or upper body, it is possible to display the person at an appropriate magnification, and create a thumbnail that can easily identify the person Can do.

  Therefore, according to the present invention, it is possible to provide a thumbnail creation program capable of easily recognizing a desired object in an image from a thumbnail.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a schematic configuration diagram of a monitoring system using an image processing apparatus according to an embodiment of the present invention.
In this monitoring system, the image processing apparatus 1 and the imaging apparatus 2 can be connected via a transmission path 3. The image processing apparatus 1 is configured by, for example, a personal computer provided with browser software. The imaging device 2 is configured by, for example, a network camera or a Web camera, and has a function of digitally processing an image captured by a solid-state imaging device such as an imaging tube or a CCD and distributing the image via a network interface. The transmission path 3 is a LAN cable or the like, and may be connected to a network such as an analog telephone network, an ISDN network, a digital leased line network, or the Internet.

FIG. 2 is a block diagram illustrating a functional configuration of the image processing apparatus 1.
The image processing device 1 is configured by a computer including a central processing unit (CPU) 11 such as a microprocessor. A data memory 13 and a program memory 14 are connected to the CPU 11 via a bus 12, and an image pickup device interface (image pickup device I / F) 15, an input interface (input I / F) 16, and an output interface. (Output I / F) 17 is connected.

  The imaging device I / F 15 receives a captured image from the imaging device 2 via the transmission path 3 under the control of the CPU 11. An input device 161 such as a keyboard or a mouse is connected to the input I / F 16, and operation information input from the user by the input device 161 is received. A display device 171 such as a liquid crystal display (LCD) or a television monitor is connected to the output I / F 17, and a captured image obtained from the imaging device 2 is output to the display device 171 under the control of the CPU 11.

  The data memory 13 includes a storage device such as a RAM or a hard disk, and includes a captured image storage area 13a and a thumbnail storage area 13b. In the captured image storage area 13a, captured images of the imaging device 2 captured by the input I / F 16 are stored together with image information. The image information includes imaging date / time, imaging camera name, and shutter mode. The imaging camera name is a name given in relation to the place where the imaging device 2 is installed or the monitoring target of the imaging device 2, for example. The shutter mode is information relating to an imaging method such as imaging by a manual shutter by an operator or imaging by an automatic shutter based on an alarm input from an external sensor or the like. A thumbnail created from the captured image is stored in the thumbnail storage area 13b. A method for creating thumbnails will be described later.

On the other hand, the program memory 14 stores a thumbnail creation program 14a and a selected image display program 14b as control programs for realizing the present invention.
The thumbnail creation program 14a creates a thumbnail obtained by reducing a predetermined image range of the image for the image designated by the user in the captured image storage area 13a, and stores the thumbnail in the thumbnail storage area 13b. The selected image display program 14b has a function of displaying the entire image corresponding to the thumbnail selected according to the specified condition, and displaying an object included in the thumbnail in an enlarged manner.

Next, the operation of the image processing apparatus 1 configured as described above will be described.
FIG. 3 and FIG. 4 are flowcharts showing the procedure and contents of thumbnail creation processing in the image processing apparatus 1. FIG. 5 is a diagram illustrating an example of an operation screen displayed on the image processing apparatus 1.
First, the operation screen will be described with reference to FIG.
The operation screen 501 includes an image enlargement display unit 502 and an entire image display unit 503. In addition, a shutter button 505, enlargement display position movement buttons 506a, 506b, 506c, and 506d, an enlargement rate change button 507, a file selection button 508, A thumbnail list display area 509 is provided.

  The shutter button 505 is a button for transmitting a request signal for acquiring an image to the imaging device, and when the shutter button 505 is clicked at an arbitrary time, an image captured by the imaging device 2 is image processing device 1. The captured image is displayed on the entire image display unit 503. Also, an image selected from a file selection dialog (not shown) displayed by clicking the file selection button 508 can be displayed on the entire image display unit 503. Further, a display frame 504 is displayed based on the enlargement position and enlargement ratio set on the entire image display unit 503, and the partial image indicated by the display frame 504 is enlarged and displayed on the image enlargement display unit 502. Details of the enlarged display of the partial image will be described later.

  When a high-definition image having a larger number of pixels than the number of pixels of the display is used, the entire image reduced by thinning out pixels by affine transformation or the like is displayed on the entire image display unit 503. Compared to low-quality images such as VGA size images (hereinafter referred to as standard images), the definition and image quality, the number of pixels, the number of gradations per pixel, and the compression rate are excellent. Even when an enlarged display is performed on the display unit 502, a finer image than the standard image can be displayed.

In addition, instead of selecting an image from the above file selection dialog, a dialog (not shown) for searching for an image is provided, and an image is searched using the image capturing date and time or the name of the image capturing device as a keyword, and a list of corresponding images is displayed. A method of selecting an image from the above may be used.
Next, a method for changing the position of the partial image to be enlarged and displayed on the image enlargement display unit 502 will be described. First, for example, when an image selected from the file selection dialog displayed by the file selection button 508 is displayed on the entire image display unit 503, the display frame 504 indicating the position of the partial image to be enlarged is the entire image. The image enlargement display unit 502 displays an image in the same range as the image displayed on the entire image display unit 503, that is, the entire image.

  The following operator operations are performed on the display frame 504. The display frame 504 is moved using the enlarged display position moving buttons 506a, 506b, 506c, and 506d. When the enlargement display position move button is clicked, the enlargement display position move button 506a moves upward, the enlargement display position move button 506b moves downward, the enlargement display position move button 506c moves leftward, and the enlargement display position move button 506d moves rightward, When the display frame 504 moves a predetermined amount (for example, 10 dots) and keeps pressing the button, it moves continuously. Further, the enlarged display position moving buttons 506a, 506b, 506c, and 506d may be interlocked with up / down / left / right keys of the keyboard. When the display frame 504 is moved, the partial image of the image enlargement display unit 502 is also updated with this movement.

  Next, a case where the position of the partial image displayed on the image enlargement display unit 502 is finely adjusted will be described. By clicking on the image enlargement display unit 502 to select it, fine adjustment of the position of the partial image in the image enlargement display unit 502 becomes effective. At this time, the outer frame of the image enlargement display unit 502 is highlighted (for example, displayed in red). Fine adjustment of the position is performed with the enlarged display position moving buttons 506a, 506b, 506c, and 506d. When clicked, the enlarged display position moving button 506a moves the image upward, the enlarged display position moving button 506b moves downward, the enlarged display position moving button 506c moves left, and the enlarged display position moving button 506d moves right by one dot. You can move continuously by holding down the button. If the image enlargement display unit 502 is clicked while the outer frame of the image enlargement display unit 502 is highlighted, fine adjustment of the position of the partial image becomes invalid and the outer frame becomes the original display (for example, black display). .

Further, in place of clicking the image enlargement display unit 502 for fine adjustment of the position of the partial image, a position fine adjustment button 510 is provided, and the fine adjustment of the position of the partial image is made effective only when a check mark is added. You can also
Further, instead of the enlarged display position movement button for changing the position of the partial image, a method for enabling the movement of the display frame in an oblique direction by providing an enlarged display position movement button in eight directions as shown in FIG. There is also. Further, by clicking the entire image display unit 503 or the image enlargement display unit 502 with the mouse without providing the enlargement display position moving button or the 8-direction enlarged display position moving button, the clicked position is displayed on the entire image display unit. There is also a method of displaying and updating the image of the image enlargement display unit 502 so that the clicked position becomes the center. Further, when the mouse is dragged (the operation of moving the mouse while the left button of the mouse is pressed), the position of the partial image to be enlarged can be continuously moved according to the movement of the mouse.

  Next, a method for changing the enlargement ratio of the partial image displayed on the image enlargement display unit 502 will be described. The enlargement ratio is changed by an enlargement ratio change button 507. When the inverted triangle button on the right side of the enlargement ratio change button 507 is clicked, a list of enlargement ratios is displayed as shown in FIG. 13, and the enlargement ratio is selected from this list and changed. When the enlargement factor is changed by the enlargement factor change button 507, the size of the display frame 504 of the selected image and the range of the partial image indicated by the display frame 504 are changed while leaving the center point of the image as it is.

  Another method for changing the enlargement ratio of the partial image displayed on the image enlargement display unit 502 will be described. When the operator right-clicks the mouse in the entire image display unit 503 or the image enlargement display unit 502, an enlargement ratio change pop-up menu shown in FIG. 14 is displayed. In the enlargement ratio change pop-up menu, all the enlargement ratios prepared in advance are displayed as options, and when any of these enlargement ratios is selected, the range of the display frame 504 is updated according to the selected enlargement ratio, The partial image indicated by the display frame 504 is enlarged and displayed on the image enlargement display unit 502.

  Furthermore, the enlargement ratio of the partial image displayed on the image enlargement display unit 502 can be changed using a mouse wheel. For example, when the operator rotates the mouse wheel to the back in the entire image display unit 503 or the image enlargement display unit 502, the enlargement ratio is increased by one step from the current setting, and the image is enlarged when rotated to the front. Make the rate one step lower than the current setting. Further, the enlargement ratio may be changed according to the amount of wheel rotation of the mouse. Specifically, the minimum rotation angle (for example, 15 °) of the wheel is set as one step, and the enlargement ratio is changed by 5% per step. For example, when the wheel is rotated 6 steps (90 °) in the back, the enlargement ratio is increased by 30%. In addition, when the wheel is rotated 10 steps (150 °) forward, the enlargement ratio is reduced by 50%.

(Thumbnail creation process)
Next, a process for creating thumbnails displayed in the thumbnail list display area 509 will be described with reference to FIG. Here, the target object is a human face range.
In step S3a of FIG. 3, the CPU 11 of the image processing apparatus 1 monitors whether an image is newly selected by the file selection button 508, and when selected, the process proceeds to step S3b, and the image selected in step S3a is selected. It is determined whether face detection processing has been executed. If it is determined in this determination that the face detection process has already been performed, the process ends. On the other hand, if it is determined in this determination that the face detection process has not been executed, the process proceeds to step S3c, and the CPU 11 executes the thumbnail creation program 14a and uses the image selected in step S3a to perform face detection. Perform detection processing.

  In general face detection processing, a method using skin color information, a method paying attention to facial features such as eyes, nose, mouth, and the like are used. As a result of performing the face detection process, if a face exists in the image, the range of the face in the image is acquired. In step S3d, the presence or absence of a face is determined as a result of performing the face detection process in step S3c. If a face exists, the process proceeds to step S3e, and if not, the process ends. In step S3e, for each face range detected in the face detection process performed in step S3c, a face image in a range centered on the face portion is detected from the image, and a thumbnail enlarged or reduced to a predetermined size is detected. Create each. In step S3f, the created thumbnail is stored in the thumbnail storage area 13b.

Here, details of the thumbnail creation process performed in step S3e will be described with reference to FIG.
When the size of the detected face image is acquired in step S4a, the predetermined number of pixels, the size of the thumbnail, and the size of the face image are compared and determined in step S4b. If it is determined that the range of the face image is equal to or greater than the predetermined number of pixels, the process proceeds to step S4c to create a thumbnail by enlarging or reducing the face image in accordance with the image size of the thumbnail. If the thumbnail size is the same as the face image size, the detected face image is directly used as a thumbnail in step S4d. On the other hand, if it is determined in the above determination that the range of the face image is equal to or less than the predetermined number of pixels, the process proceeds to step S4e, and the range assumed to be the whole body of the person based on the detected range of the face is determined. Detect and create thumbnail image data.

  That is, for example, for a thumbnail created with a size of 120 pixels wide × 90 pixels high, the face range obtained as a result of the face detection process is 40 pixels wide × 30 pixels high and the number of thumbnail pixels However, when the number of pixels in the horizontal direction and the vertical direction is increased by a factor of three to create a thumbnail, the image may be mosaic and the target may not be recognized. Therefore, for example, the range of the face image obtained as a result of the face detection process may be a predetermined number of pixels (for example, the total number of pixels of width × height, such as width 40 pixels × height 30 pixels, If the number of pixels is smaller than the number of pixels, the range that is assumed to be the whole body (may be the upper body, etc.) calculated from the face range is cut out and enlarged or reduced in accordance with the thumbnail size. Create In addition, the thumbnail may be created by cutting out a range corresponding to the thumbnail size (that is, horizontal 120 pixels × height 90 pixels) with the range of the face image as the center. Thereby, a thumbnail that can easily identify an object such as a person can be created without the thumbnail becoming a mosaic.

(Thumbnail display processing)
Next, a thumbnail display process in the image processing apparatus 1 will be described. FIG. 6 is a flowchart showing the thumbnail display processing procedure and its contents.
In step S <b> 6 a, when the CPU 11 of the image processing apparatus 1 accepts selection of an image using the file selection button 508, the selected image is read from the captured image storage area 13 a and displayed on the entire image display unit 503. In step S6b, it is determined whether or not a thumbnail related to the selected image is stored in the thumbnail storage area 13b. If it is determined that there is a related thumbnail, the process proceeds to step S6c, and all thumbnails related to the selected image are read. In step S6d, the thumbnails read in step S6c are displayed in the thumbnail list display area 509, respectively.

  Next, the display of thumbnails in the thumbnail list display area 509 will be described with reference to FIGS. When the operator selects an image and the selected image is displayed on the entire image display unit 503 as shown in FIG. 9, the thumbnail list display area 509 shown in FIG. Thumbnail 701a, 701b, 701c, 701d and 701e which are thumbnails related to the image are displayed. By operating the scroll bar 511, all thumbnails displayed in the thumbnail list display area 509 can be browsed.

  Also, detailed information such as the date / time information of the thumbnail may be displayed below the thumbnail, or the tooltip is displayed when the mouse pointer is moved over the thumbnail, and the details of the image are displayed in the tooltip. You may do it. Further, as shown in FIG. 8, detailed display areas 801a, 801b, and 801c may be provided next to the thumbnails 701a, 701b, and 701c, respectively, to display the details. Further, the display of FIGS. 7 and 8 may be switched with a button or the like.

  Conventionally, for example, when there are many objects in the selected image and the objects that are present are small, the operator can recognize the respective objects so that an appropriate enlargement position and It was necessary to set the enlargement ratio repeatedly. However, the image processing apparatus 1 of the present invention detects objects existing in the selected image, creates thumbnails that display the detected objects at an appropriate magnification, and displays them as a list. As a result, the operator can easily grasp the object present in the image by browsing the thumbnail.

(Selected image display processing)
Next, a method for enlarging and displaying the object image in the range of the selected thumbnail will be described with reference to FIGS. FIG. 10 is an example of an operation screen of the image processing apparatus 1. FIG. 11 is a flowchart showing the procedure and operation of the enlarged display process. In step S11a of FIG. 11, when the CPU 11 of the image processing apparatus 1 receives the selection input of the thumbnail 701c from the thumbnail list display area 509 by the mouse operation by the operator, the CPU 11 executes the selected image display program 14b. First, in step S11b, The selected image is read from the captured image storage area 13a. Then, the read image is displayed on the entire image display unit 503, and the partial image indicated by the display frame 504 is enlarged and displayed on the image enlargement display unit 502.

  Incidentally, the operation screen 501 is provided with an enlarged composition selection button 1005 for selecting a composition for enlarging and displaying an object. When an inverted triangle button on the right side of the enlarged composition selection button 1005 is clicked, a list of compositions to be enlarged and displayed is displayed as shown in FIG. In step S11c, when one composition is selected from the enlarged composition selection button 1005 by the operator, the image range of the selected composition of the object displayed in the thumbnail is acquired in step S11d. Then, the image range acquired in step S11e is enlarged and displayed on the image enlargement display unit 502. For example, when “whole body” or “upper body” is selected, an image of the composition range of each item calculated based on the thumbnail range is enlarged and displayed. In this way, if you can zoom in on each composition, you can select “Face” to check the person's facial expression, or select “Upper body” to check clothes, such as name tags, etc. It becomes very easy to grasp the details of the object by changing the composition to be displayed.

  Here, a method of calculating the “whole body” range will be described. Assuming that the range of the face detected by face detection is the upper third of the body, it can be considered that the whole body is imaged when the range is expanded three times downward. Along with this, the range of “whole body” can be obtained by expanding the horizontal width three times. Similarly, assuming that the upper body is the upper half of the body, the upper body can be obtained by enlarging the downward direction and the width 3/2 times. . In addition, since the range of face detection is very narrow, if you select a thumbnail that has been changed to an appropriate range for viewing, for example, a whole body range, it was created in the whole body range as thumbnail information when creating the thumbnail. When a composition is selected, the range of each composition is calculated based on the information.

  Conventionally, when the object is small, it is difficult to enlarge and display the object at an appropriate enlargement position and enlargement ratio, and there is a problem that the enlargement range must be adjusted many times. In the image processing apparatus 1 according to the present embodiment, the object specified by the thumbnail is enlarged and displayed within the range of the selected enlarged composition. As a result, the operator can select the composition to be enlarged and the designated object is displayed in an optimum size, so that it is possible to save the operator from adjusting the display.

  The present invention is not limited to the above embodiment. In the above embodiment, a method for creating a thumbnail of a face has been described. However, the object may be other than a face, such as a car license plate. The configuration of the image processing apparatus 1 and the screen configuration to be displayed, the thumbnail creation process and the selected image display process, and the contents thereof can be variously modified and implemented without departing from the present invention.

  In short, the present invention is not limited to the above-described embodiment as it is, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage. Further, various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the embodiment. For example, some components may be deleted from all the components shown in the embodiment. Furthermore, you may combine suitably the component covering different embodiment.

1 is a schematic diagram of a monitoring system using an image processing apparatus according to an embodiment of the present invention. The block diagram which shows the function structure of the image processing apparatus shown in FIG. 2 is a flowchart showing a procedure and contents of thumbnail creation processing in the image processing apparatus shown in FIG. 1. 2 is a flowchart showing a procedure and contents of thumbnail creation processing in the image processing apparatus shown in FIG. 1. The figure which shows an example of the operation screen displayed on an image processing apparatus. 2 is a flowchart showing the procedure and contents of thumbnail display processing in the image processing apparatus shown in FIG. The figure which shows an example of the thumbnail list display displayed on an image processing apparatus. The figure which shows an example of the thumbnail list display displayed on an image processing apparatus. The figure which shows an example of the whole display displayed on an image processing apparatus. The figure which shows an example of the enlarged display of the selected composition displayed on an image processing apparatus. The flowchart which shows the procedure of the selection image display process in the image processing apparatus shown in FIG. 1, and its content. The figure which shows the other structural example of the operation button used for the operation screen shown in FIG. The figure which shows the other structural example of the operation button used for the operation screen shown in FIG. The figure which shows the other structural example of the operation button used for the operation screen shown in FIG. The figure which shows the structural example of the expansion composition selection button used for the operation screen shown in FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Image processing apparatus, 2 ... Imaging device, 3 ... Transmission path, 11 ... CPU, 12 ... Bus, 13 ... Data memory, 13a ... Captured image storage area, 13b ... Thumbnail storage area, 14 ... Program memory, 14a ... Thumbnail Creation program, 14b ... selected image display program, 15 ... imaging device I / F, 16 ... input I / F, 161 ... input device, 17 ... output I / F, 171 ... display device, 501 ... operation screen, 502 ... image Magnified display section, 503 ... Whole image display section, 504 ... Display frame, 505 ... Shutter button, 506a, 506b, 506c, 506d ... Enlarged display position move button, 507 ... Enlargement ratio change button, 508 ... File selection button, 509 ... Thumbnail list display area 510... Position fine adjustment button 511... Scroll bar 701 a, 701 b, 701 , 701d, 701e ... thumbnail, 801a, 801b, 801c ... Detailed display area, 1005 ... expanded composition button.

Claims (3)

An image processing program for causing a computer to execute processing for creating thumbnail image data and display processing on a display device ,
A detection process for detecting a human face range from input image data;
A determination process for determining whether or not the face range is less than a predetermined number of pixels;
When the determination unit determines that the face range is less than the predetermined number of pixels, a range corresponding to a predetermined size of the thumbnail centered on the face range is cut out from the input image data , If the range is determined to be greater than or equal to the predetermined number of pixels, a creation process for creating the thumbnail image data by enlarging or reducing the image of the face range according to a prescribed size of the thumbnail ;
A storage process for storing each of the input image data and the created thumbnail image data;
The input image data selected by the operator's operation and thumbnail image data related to the selected input image data are read and displayed on the entire image display unit and the thumbnail list display area of the display device, respectively. Display processing,
An enlarged display process of enlarging a partial image designated by the operator's operation among the images displayed on the entire image display unit and displaying the enlarged image on the image enlargement display unit of the display device ,
The enlarged display process displays an enlarged composition selection unit for selecting at least a face and a whole body or upper body as a composition on the display device, and an image corresponding to the thumbnail selected by the operator in the thumbnail list display area. An image processing program for enlarging and displaying an image of a range calculated according to the selected composition as the partial image based on the range . An image processing program for causing a computer to execute processing for creating thumbnail image data and display processing on a display device ,
A detection process for detecting a human face range from input image data;
A determination process for determining whether or not the face range is less than a predetermined number of pixels;
When the determination unit determines that the face range is smaller than the predetermined number of pixels, the range that is assumed to be the whole body or upper body of the person calculated from the face range is specified and the input image data is used. When the face range is determined to be greater than or equal to the predetermined number of pixels, the image of the face range is adjusted to the specified size of the thumbnail. by enlarging or reducing Te, and creation processing for creating the thumbnail image data,
A storage process for storing the input image data and the created image data to fall asleep respectively;
The input image data selected by the operator's operation and thumbnail image data related to the selected input image data are read and displayed on the entire image display unit and the thumbnail list display area of the display device, respectively. Display processing,
An enlarged display process of enlarging a partial image designated by the operator's operation among the images displayed on the entire image display unit and displaying the enlarged image on the image enlargement display unit of the display device ,
The storage process saves the thumbnail image data created by cutting out a range assumed to be the whole body or upper body of the person, together with thumbnail information indicating that the range was created in the whole body or upper body range,
The enlarged display process displays an enlarged composition selection unit for selecting at least a face and a whole body or upper body as a composition on the display device, and an image corresponding to the thumbnail selected by the operator in the thumbnail list display area. An image processing program for enlarging and displaying an image of a range calculated according to the selected composition as the partial image based on the range and the thumbnail information . The enlarged display process calculates the range according to the selected composition and the thumbnail information, and the selected thumbnail is an image of the face range detected by the detection process, and 3. The image according to claim 2, wherein, when the selected composition is the whole body or the upper body, the calculated range is a range obtained by enlarging the image range corresponding to the thumbnail in the downward direction and the horizontal width by a predetermined amount. Processing program.

Images