JP5990068B2 - Control device, control method, and control program - Google Patents

Description

  The present invention relates to a control device, a control method, and a control program, and more particularly to a control device, a control method, and a control program for performing image composition using a plurality of captured images.

  As a method of handling a plurality of photographed images, for example, Japanese Patent Application Laid-Open No. 2003-209793 (hereinafter referred to as Patent Document 1) records reference image information, reproduces the reference image recorded at the next photographing, A digital camera capable of two-dimensional management by associating desired image points and associating captured image information with reference image information is proposed. In this digital camera, a photographed image is stored in a memory, and when that image is selected, the photographed image is displayed again on the display unit and photographed.

  In addition, in an image editing tool such as Photoshop (registered trademark), a shot image is used as an editing destination image, and editing such as superimposing the editing source image on the image is performed.

JP 2003-209793 A

  However, in the method disclosed in Patent Document 1, a captured image is temporarily stored, a partial area of the stored captured image is selected by a cropping operation or the like, and then the camera is activated again to be combined with the captured image. There is a problem that a complicated operation of shooting is necessary.

  In addition, since it is necessary to save the photographed image once, there is a problem that the capacity of the storage area is doubled.

  In addition, since the image editing tool as described above requires two image data of an editing source image and an editing destination image, a camera such as a PC (personal computer) for expanding captured data. There was a problem that another device or application was required.

  Furthermore, the image editing tool as described above requires a plurality of steps such as selection and cutting of the image of the editing source, selection of the image of the editing destination, and pasting of the image of the editing source, and the operation is complicated. There was a problem.

  The present invention has been made in view of such a problem, and provides a control device, a control method, and a control program capable of creating a composite image using a photographed image in real time with easy operation. The purpose is that.

  In order to achieve the above object, according to one aspect of the present invention, the control device is a control device that is connected to a plurality of cameras and can control the plurality of cameras, and inputs a captured image from each of the plurality of cameras. An input unit for receiving, a preview display unit for generating a preview display screen by superimposing a plurality of captured images, and displaying on the display device; an instruction unit for receiving a shooting instruction; And a synthesizing unit for obtaining a synthesized image by fixing the captured images from the respective cameras and synthesizing the obtained image data. When receiving the designation of the cut-out range for the preview-displayed screen, the preview display means arranges the cut-out range area of the shot image arranged at the top in the cut-out range immediately below the top. The screen for preview display is updated by replacing with the corresponding range of the photographed image, and the combining means combines the areas according to the display range in the preview display when the shooting instruction is received for each of the plurality of image data.

  Preferably, the control device includes a touch panel as a display device, and further includes specifying means for specifying a cutout range based on a touch operation on the touch panel on which a preview display screen is displayed.

  More preferably, when the specifying unit receives an instruction to change the cutout range, the specifying unit adjusts the cutout range in accordance with the change instruction.

  According to still another aspect of the present invention, the control method is a control method for controlling a plurality of cameras to obtain a composite image based on the captured images from each of the plurality of cameras, which is captured from each of the plurality of cameras. A step of receiving an image input, a step of generating a preview display screen by superimposing a plurality of captured images, and displaying on a display device; A step of updating the preview display screen by replacing the area of the cutout area of the photographed image arranged at the highest position in the output range with the corresponding area of the photographed image arranged immediately below the highest position; When a shooting instruction is accepted while the preview is displayed, the shot images from each of the multiple cameras are fixed and the obtained image data is combined. And a step of obtaining a composite image by. In the step of obtaining a composite image, a composite image is obtained by compositing areas of the plurality of image data according to the display range in the preview display when a photographing instruction is received.

  According to still another aspect of the present invention, a control program is a program for causing a computer connected to a plurality of cameras to execute a process of obtaining a composite image based on a captured image from each of the plurality of cameras. Accepting input of captured images from each of the cameras, generating a preview display screen by superimposing multiple captured images, displaying them on the display device, and specifying the clipping range for the previewed screen Is received, the step of updating the preview display screen by replacing the area of the cut-out range of the shot image arranged at the top in the cut-out range with the corresponding range of the shot image arranged immediately below the top level When a shooting instruction is received in a state where a preview is displayed on the display device, shooting from each of a plurality of cameras is performed. The step of obtaining a composite image by fixing the image and synthesizing the obtained image data to the computer, and in the step of obtaining the composite image, the computer receives a shooting instruction for each of the plurality of image data. A synthesized image is obtained by synthesizing the area according to the display range in the preview display.

  According to the present invention, it is possible to obtain a composite image using captured images from each of a plurality of cameras by an easy operation and in real time by shooting.

It is the schematic showing the specific example of the external appearance of the imaging device as a 1st specific example of the imaging device concerning embodiment. It is the schematic showing the specific example of the external appearance of the imaging device as a 2nd specific example of the imaging device concerning embodiment. It is a block diagram which shows the specific example of the apparatus structure of an imaging device. It is the flowchart showing the operation | movement outline | summary in an imaging device. It is a figure showing the concept of the hierarchy display at the time of the preview display in step S3 of FIG. It is a figure showing the specific example of the designation | designated method of the extraction range. It is a figure for demonstrating the specific flow of the preview display in step S3 of FIG. It is a figure for demonstrating the specific flow of the preview display in step S3 of FIG. It is a figure for demonstrating the specific flow of the preview display in step S3 of FIG. It is a figure for demonstrating the specific flow of the preview display in step S3 of FIG. It is a block diagram which shows the specific example of a function structure of an imaging device. It is a flowchart showing the flow of operation | movement with an imaging device.

  Embodiments of the present invention will be described below with reference to the drawings. In the following description, the same parts and components are denoted by the same reference numerals. Their names and functions are also the same. Therefore, these descriptions will not be repeated.

<Device configuration>
FIG. 1A and FIG. 1B are schematic views showing a specific example of the appearance of a photographing apparatus 100A as a first specific example of the photographing apparatus according to the present embodiment. Here, a terminal device having a photographing function such as a mobile phone with a camera is assumed as the photographing device. The imaging device 100A has two surfaces, and FIGS. 1A and 1B show specific examples of appearances viewed from the respective surfaces.

  Specifically, referring to FIGS. 1A and 1B, photographing apparatus 100A has first camera 16 as a main camera and second camera 17 as a sub camera on each surface. Have. Furthermore, it has the display part 15 and the input part 14 as a touchscreen.

  The photographing apparatus 100A only needs to be able to control a plurality of cameras, and may include three or more cameras. Furthermore, the image capturing apparatus according to the present embodiment does not necessarily include a plurality of cameras, as long as the plurality of cameras can be controlled. For example, it may be a photographic device that includes one camera itself, can communicate with other photographic devices equipped with the camera, and can control the camera. As another example, it may be a control device such as a PC (personal computer) capable of communicating with two or more cameras without being equipped with a camera and controlling these camera groups.

  FIG. 2 is a schematic diagram illustrating a specific example of the appearance of a photographing apparatus 100B as a second specific example of the photographing apparatus according to the present embodiment.

  Referring to FIG. 2, imaging device 100B has first camera 16 (on the side opposite to the illustrated surface), and can communicate with other imaging devices having second camera 17 in a wired or wireless manner. It is connected to the.

  In the following description, the photographing apparatus according to the present embodiment is assumed to be the photographing apparatus 100A shown in FIGS. 1A and 1B, but the photographing apparatus 100B shown in FIG. Even if there is, it is the same.

FIG. 3 is a block diagram illustrating a specific example of the apparatus configuration of the imaging apparatus 100A.
Referring to FIG. 3, photographing apparatus 100 </ b> A executes a calculation for controlling the entire photographing apparatus 100 </ b> A and functions as a control device for first camera 16 and second camera 17, and CPU 10. ROM (Read Only Memory) 11 for storing a program (application) executed by the CPU 10, RAM (Random Access Memory) 12 for functioning as a work area when the CPU 10 executes the program, image data, etc. A memory 13 for storing information, an input unit 14 for receiving an operation input to the photographing apparatus 100A, a display unit 15, a first camera 16, and a second camera 17.

  In the example of FIGS. 1A and 1B, the input unit 14 and the display unit 15 form a touch panel, but may be separately provided in the photographing apparatus 100A like a button and a display. .

<Overview of operation>
FIG. 4 is a flowchart showing an outline of the operation in the photographing apparatus 100A.

  Referring to FIG. 4, photographing apparatus 100A performs photographing with each of first camera 16 and second camera 17, and accepts input of a photographed image (step S1). Here, as an example, a moving image is captured and input in real time.

  The photographing apparatus 100A displays a preview of these input images on the display unit 15 (step S3). The preview display method will be described later.

  The preview display is continued until a shooting instruction is given (NO in step S5). During this time, the image capturing apparatus 100A accepts input of captured images from both cameras, and previews these input images in real time.

  When the input unit 14 accepts a shooting instruction from the user in the preview display state (YES in step S5), the shooting apparatus 100A issues a capture instruction to each of the first camera 16 and the second camera 17 (step S7). ), And the captured image at that time is fixed and captured as image data. Then, the image capturing apparatus 100A synthesizes each image data so as to be in a preview display state (step S9), and displays the result on the display unit 15.

  FIG. 5 is a diagram showing the concept of hierarchical display at the time of preview display in step S3.

  Referring to FIG. 5, photographing apparatus 100A holds an input image from first camera 16 and an input image from second camera 17 in different storage layers in a temporary storage area provided in memory 13. The display unit 15 displays a hierarchy (superimposed display). Similarly, when the image capturing apparatus 100A has three or more cameras, the image capturing apparatus 100A holds the input images from the respective cameras in different layers in order and displays them on the display unit 15 in a layered order. .

  At this time, the imaging apparatus 100A accepts a range specification for the displayed input image that is the input image held in the highest hierarchy as shown in FIG. The range is set as a non-display range for the input image. Then, the imaging apparatus 100A displays the corresponding range of the input image held in the hierarchy one level lower than the hierarchy in the non-display range. This is the same state as when the input image of the immediately lower layer is seen by cutting out the input image of the upper layer. Hereinafter, the range designated as the cutout range is also referred to as “cutout range”.

  Similarly, when there are three or more cameras and there are three or more display hierarchies, by accepting designation of a cutout range for the highest hierarchy, the cutout range is one level lower than the highest hierarchy. The input image of the hierarchy will be displayed, and by specifying the extraction range further for the input image of the hierarchy one level lower than the highest hierarchy displayed in the extraction range, The input image is cut out, and the input image at a level one level lower than that level is displayed.

  The cutout range may be specified by touching the display unit 15 in a state where the preview screen is displayed on the display unit 15 that is a touch panel, for example. As another method, the operation may be performed by operating the input unit 14 such as a button or a touch pad while the preview screen is displayed on the display unit 15.

  FIG. 6 is a diagram showing a specific example of a method for designating the extraction range. Referring to FIG. 6, in display unit 15 which is a touch panel, a circle (FIG. 6A), a rectangle (FIG. 6B), a polygon such as a star (FIG. 6C), etc. with a finger or the like. It can be specified as the cutout range by sliding along the shape.

  When a slide operation is performed in a state where the preview screen is displayed on the display unit 15 that is a touch panel, the imaging device 100A specifies a region as a cutout range when there is a closed region in the touch trajectory. Also good. For example, as shown in FIG. 6D, when a closed area is detected in the touch trajectory, the imaging apparatus 100A sets the area as a cutout range.

  For example, as shown in FIGS. 6E and 6F, a plurality of closed areas are created by a single continuous slide operation, and a plurality of cutout ranges are designated by a single slide operation. You can also.

  Furthermore, the imaging apparatus 100A may enlarge or reduce the cutout range specified by the slide operation or change the position. The user can instruct deformation of the cutout range by specifying the cutout range by the slide operation and further performing a pinch-in operation, a pinchout operation, a drag operation, or the like on the cutout range.

  Furthermore, the imaging apparatus 100A not only uses the cutout range specified by the user's slide operation as a range for cutting out the input image, but also stamps the image in that range among the input images held in the highest hierarchy. It may be used as an image.

  Note that when the resolutions of the first camera 16 and the second camera 17 are different, the resolutions of the input images from the first camera 16 and the second camera 17 are also different. Therefore, in this case, the imaging apparatus 100A converts the resolution of each input image to the resolution of the camera with the lowest resolution among these cameras, that is, the resolution of the input image from the camera with the highest resolution is converted to the camera with the lowest resolution. Unify the resolution of all input images by reducing to the highest resolution.

  Alternatively, the image capturing apparatus 100A may unify the size by converting the size of the input image from each camera into the screen size of the display unit 15 stored in advance. That is, the imaging apparatus 100 </ b> A may enlarge / reduce the resolution of the input image from each camera to the maximum screen size of the display unit 15.

  Note that the resolution (size) of each input image does not necessarily have to be unified. As another example, the image capturing apparatus 100A displays a preview of the resolution of an input image (for example, an input image from the first camera 16) held in the highest hierarchy without conversion, and a cut-out range for the input image Is specified, the size of the input image (for example, the input image from the second camera 17) held in the hierarchy one level lower than the highest level is converted to the size of the cutout range, and then the cutout range The input image may be previewed. At this time, the image capturing apparatus 100A preferably converts the image size while maintaining the aspect ratio of the input image held in the hierarchy one level lower than the highest level. In addition, the image capturing apparatus 100A preferably displays the center point of the input image held in the hierarchy one level lower than the highest level in the cutout range so as to coincide with the center point of the cutout range. Alternatively, the imaging device 100A may accept designation of a display position in the cutout range of an input image held in a level one level lower than the highest level.

  7 to 10 are diagrams for explaining a specific flow of the preview display in step S3. That is, FIG. 7 is a diagram showing the positional relationship between the users A to C as subjects with respect to the first camera 16 and the second camera 17. FIG. 8 is a diagram illustrating a specific example of a captured image with the first camera 16 in the state of FIG. 7, and FIG. 9 is a diagram illustrating a specific example of a captured image with the second camera 17. FIG. 10 is a diagram showing a specific example of preview display based on the captured images of FIGS. 7 and 8.

  As shown in FIG. 7, it is assumed that the users A and B are subjects and the user C points the first camera 16 toward the users A and B. At this time, the second camera 17 faces the user C who is a photographer. Therefore, as shown in FIG. 8, the users A and B are photographed by the first camera 16, and the user C is photographed by the second camera 17 as shown in FIG. 9.

  The imaging apparatus 100A includes an input image from the first camera 16 that is an image captured by the first camera 16 in FIG. 8, and an input image from the second camera 17 that is an image captured by the second camera 17 in FIG. Are stored in different hierarchies in the temporary storage areas provided in the memory 13, respectively.

  If the input image from the first camera 16 in FIG. 8 is displayed as a higher layer and the input image from the second camera 17 in FIG. 9 is displayed as a lower layer during the preview display, the input image of FIG. A preview is displayed. When the cutout range is designated in this state, as shown in FIG. 10, the image capturing apparatus 100A holds the second level in FIG. An input image from the camera 17 is previewed.

  In the state of FIG. 10, when receiving a shooting instruction from the user (in this example, user C) by the input unit 14, the shooting apparatus 100 </ b> A obtains image data by fixing (capturing) the input image in each camera, These image data are synthesized according to the preview display state of FIG.

<Functional configuration>
FIG. 11 is a block diagram illustrating a specific example of a functional configuration of the imaging apparatus 100A for performing the above-described operation. Each function shown in FIG. 11 is mainly formed on the CPU 10 when the CPU 10 of the photographing apparatus 100A reads out a program stored in the ROM 11 and executes the program while developing it on the RAM 12. However, it may be realized at least in part by the hardware configuration shown in FIG.

  Referring to FIG. 11, memory 13 is a storage area for storing an input image from first camera 16, and is a storage area for holding an input image in an upper hierarchy in the hierarchical display. A first input image storage unit 131 and a second input image storage that is a storage area for storing input images from the second camera 17 and is a storage area for holding input images in a lower hierarchy in the hierarchical display. Part 132 is provided.

  Referring to FIG. 11, the CPU 10 stores the captured image input unit 101 for receiving the input of the captured image from the first camera 16 and the input of the captured image from the second camera 17, and the input image. An image storage unit 102 for storing in a copy unit, a user instruction input from the input unit 14, an instruction input unit 103 for specifying the content of the instruction, and an instruction in which the input instruction specifies a cut-out range In some cases, the specifying unit 104 for specifying the cutout range in accordance with the contents of the instruction and the preview screen on which the input images from each camera are hierarchically displayed based on the specified cutout range are displayed on the display unit 15. When the input instruction is a photographing instruction, the input image from each camera is fixed (captured) according to the instruction content to obtain image data. Thus, a photographing unit 106 for photographing with each camera, and a synthesizing unit 107 for synthesizing the photographed image with each camera so as to be in the same state as the preview display state using the cutout range. Including.

<Operation flow>
FIG. 12 is a flowchart showing the flow of operations in the photographing apparatus 100A. The operation shown in the flowchart of FIG. 12 is realized by causing the CPU 10 of the photographing apparatus 100A to read out a program stored in the ROM 11 and execute it on the RAM 12 to execute the functions shown in FIG. .

  Referring to FIG. 12, when CPU 10 activates first camera 16 that is the main camera in accordance with, for example, a user instruction (step S101), another camera, that is, second camera 17 that is a sub camera has already been activated. Check whether it is activated and it is necessary to display the preview screen in hierarchical display.

  When the second camera 17 is activated (YES in step S103), the CPU 10 holds the input image from the first camera 16 and the input image from the second camera 17 at different levels so that they are in different levels. (Step S105). In this example, the input screen from the first camera 16, which is the main camera, is held in the highest layer (first layer), and the input screen from the second camera 17, which is the sub camera, is stored directly below the second layer (second layer). Layer). Similarly, when there are more cameras than this, the input images are sequentially held in the hierarchy.

  Then, the CPU 10 generates a preview display screen to be displayed in the hierarchical order and displays it on the display unit 15 (step S107). In the case of this example, the input images from the first camera 16 as the first layer are displayed on the upper side, and the input images from the second camera 17 as the second layer are displayed on the screen so that the input images are superimposed. . If the clipping range to be described later has not yet been specified, the input screen from the first camera 16 is displayed in front of the preview screen.

  When an operation for designating a predetermined clipping range is performed in a state where the preview is displayed on the display unit 15 (YES in step S109), the CPU 10 is held in the highest hierarchy in the designated range. The corresponding range of the input image is not displayed, and the portion is replaced with the input image of the corresponding range in the immediately lower hierarchy, and the preview display is updated (step S111). At this time, the CPU 10 may display the cutout area on the preview display, and may further display a UI (user interface) for accepting adjustment (enlargement, reduction, movement, etc.) of the range. . Then, the CPU 10 may adjust the cutout range according to the instruction.

  When the cutout range is first designated, the CPU 10 replaces the input image from the first camera 16 in the range with the input image from the second camera 17 in the range. Alternatively, the CPU 10 may replace the input image from the first camera 16 in the cutout range with the input image from the second camera 17 reduced or enlarged according to the size of the range.

  The CPU 10 repeats the above operation until a shooting instruction is received from the user (NO in step S113). In other words, when the input of the captured images from the first camera 16 and the second camera 17 is received at a predetermined time interval to update the preview display, and when an instruction to specify the cutout range is given, the cutout range is accordingly changed. And the operation of replacing the input image from the first camera 16 that is the upper layer of the range with the input image of the second camera 17 held in the second layer is repeated.

  When a photographing instruction is received from the user (YES in step S113), the CPU 10 obtains image data by fixing input images from the first camera 16 and the second camera 17 (step S115). Then, the CPU 10 synthesizes an image using these image data and displays it on the display unit 15 (step S117). At this time, the CPU 10 specifies the range of each input image displayed on the preview display screen for each image data, and synthesizes the range of each image data. For example, when a shooting instruction is given in a preview display state as shown in FIG. 10, a region other than the cut-out range of image data obtained from a captured image from the first camera 16 and a shooting from the second camera 17 are displayed. The region of the cutout range of the image data obtained from the image is synthesized. As a result, a composite image is obtained in which the input image from the second camera 17 is inserted into the cutout range set for the input image from the first camera 16 and the preview image is displayed.

  If the second camera 17 is not activated when the first camera 16 is activated in step S101 (NO in step S101), the CPU 10 may perform a normal photographing operation (step S119). At that time, when the activation of the second camera 17 is instructed during the normal photographing operation, the above-described operation may be switched. Alternatively, when the first camera 16 is activated, the CPU 10 may confirm with the user whether or not the second camera 17 needs to be activated.

<Effect of Embodiment>
The above operation is performed by the photographing apparatus 100A, so that the user can be connected to and controlled by the photographing apparatus 100A including a plurality of cameras such as a mobile phone or other apparatuses including a camera as described above. A control device can easily obtain a composite image of these input images by hierarchically holding input images from a plurality of cameras and shooting them while simultaneously previewing them on the display unit.

  Furthermore, since it is possible to eliminate the storage area for temporarily storing the photographed image that has been required in the conventional image composition processing, it is possible to perform image composition even with an apparatus having a small storage capacity. .

  In addition, since shooting apparatus 100A performs preview display in a state where images are combined, the user can check the combined image in real time with shooting. Therefore, it is possible to eliminate the need for another device or application such as a PC for once expanding the captured image.

  Further, it is possible to provide a program for causing the CPU 10 of the image capturing apparatus 100A to execute the above-described processing. Such a program is recorded on a computer-readable recording medium such as a flexible disk attached to the computer, a CD-ROM (Compact Disk-Read Only Memory), a ROM, a RAM, and a memory card, and provided as a program product. You can also. Alternatively, the program can be provided by being recorded on a recording medium such as a hard disk built in the computer. A program can also be provided by downloading via a network.

  The program according to the present invention is a program module that is provided as a part of a computer operating system (OS) and calls necessary modules in a predetermined arrangement at a predetermined timing to execute processing. Also good. In that case, the program itself does not include the module, and the process is executed in cooperation with the OS. A program that does not include such a module can also be included in the program according to the present invention.

  The program according to the present invention may be provided by being incorporated in a part of another program. Even in this case, the program itself does not include the module included in the other program, and the process is executed in cooperation with the other program. Such a program incorporated in another program can also be included in the program according to the present invention.

  The provided program product is installed in a program storage unit such as a hard disk and executed. The program product includes the program itself and a recording medium on which the program is recorded.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

  10 CPU, 11 ROM, 12 RAM, 13 memory, 14 input section, 15 display section, 16 first camera, 17 second camera, 100A, 100B photographing apparatus, 101 photographed image input section, 102 image storage section, 103 instruction input , 104 specifying unit, 105 preview display unit, 106 photographing unit, 107 composition unit, 131 first input image storage unit, 132 second input image storage unit.

Claims (5)

A control device connected to a plurality of cameras and capable of controlling the plurality of cameras,
Input means for accepting input of captured images from each of the plurality of cameras;
A preview display means for generating a preview display screen by superimposing a plurality of the captured images, and displaying the screen on a display device;
Instruction means for accepting shooting instructions;
A fixed image obtained from each of the plurality of cameras according to the shooting instruction, and a combining means for obtaining a combined image by combining the obtained image data, and
When the designation of the cutout range is accepted for the preview-displayed screen, the preview display means sets the cutout range area of the photographed image arranged at the topmost position in the cutout range to the topmost position. Update the preview display screen by replacing it with the corresponding range of the captured image placed directly below,
The said synthetic | combination means is a control apparatus which synthesize | combines the area | region according to the display range in the said preview display when the said imaging | photography instruction | indication is received of each of the said several image data. A touch panel as the display device;
The control device according to claim 1, further comprising: a specifying unit that specifies the cut-out range based on a touch operation on the touch panel on which the preview display screen is displayed.   The control device according to claim 2, wherein the specifying unit adjusts the cutout range according to the change instruction when an instruction to change the cutout range is received. A control method for controlling a plurality of cameras to obtain a composite image based on captured images from each of the plurality of cameras,
Receiving input of captured images from each of the plurality of cameras;
Generating a preview display screen by superimposing a plurality of the captured images and displaying the screen on a display device;
When designation of a cutout range is accepted for the preview-displayed screen, the area of the cutout range of the shot image arranged at the top in the cutout range is captured immediately below the topmost position. Updating the preview display screen by replacing it with the corresponding range of the image;
Receiving a shooting instruction in a state where the preview display is made on the display device, and fixing a captured image from each of the plurality of cameras and synthesizing the obtained image data to obtain a composite image. ,
In the step of obtaining the composite image, the composite image is obtained by compositing a region according to a display range in the preview display when receiving the photographing instruction of each of the plurality of image data. A program for causing a computer connected to a plurality of cameras to execute a process of obtaining a composite image based on captured images from each of the plurality of cameras,
Receiving input of captured images from each of the plurality of cameras;
Generating a preview display screen by superimposing a plurality of the captured images and displaying the screen on a display device;
When designation of a cutout range is accepted for the preview-displayed screen, the area of the cutout range of the shot image arranged at the top in the cutout range is captured immediately below the topmost position. Updating the preview display screen by replacing it with the corresponding range of the image;
When receiving a shooting instruction in a state where the preview display is made on the display device, the step of fixing a shot image from each of the plurality of cameras and obtaining a synthesized image by synthesizing the obtained image data; Let the computer run,
In the step of obtaining the composite image, the computer obtains the composite image by synthesizing a region according to a display range in the preview display when receiving the shooting instruction of each of the plurality of image data.

Images