JP2010114708A - Camera device, photographing method, photographing control program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To surely acquire an image desired by a user in the case of photographing an image obtained by combining the face of a person being an object with an image of another person. <P>SOLUTION: This camera device has a predetermined photographing mode in which the face of the person being an object is combined with another face image with a predetermined method to generate a composite image, and the composite image is recorded as a photographed image. In the predetermined photographing mode, a model image 101a and a plurality of composite images 202a to 202c obtained by combining an image of the face portion of the object with the model image 101a with different composition ratios are displayed side by side, overlapping a through image 201. The user is allowed to select one or more his/her desired composite images from the plurality of composite images 202a to 202c, and the selected one or more composite images are recorded as a photographed image in accordance with a photographing instruction. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a camera device, a photographing method, and a photographing control program having a function of synthesizing another person's image on the face of a person who is a subject.

Conventionally, a face of a person registered in advance in a face recognition record is detected from an image captured during shooting standby, and image processing is performed using image quality parameters registered in advance in association with the detected person during shooting. A camera that records captured images has been proposed (see Patent Document 1). With such a camera, it is possible to acquire a photographed image having a quality according to the age and sex of the person who is the subject.
JP 2007-274264 A

  However, in the above-described conventional technique, the user can view a captured image that has been subjected to image processing only after shooting. As a result, the captured image that has undergone image processing may differ from what the user intended as a result, but the content of the image processing that is performed at the time of shooting is related to image quality such as hue, sharpness, and saturation. In such a case, the above situation is relatively difficult to occur. On the other hand, when the image processing to be performed at the time of shooting is a process of synthesizing another person's face with the face of the person who is the subject, the user must accurately imagine the image actually recorded at the time of shooting. I can't. Therefore, in that case, there is a problem that a situation where the finally obtained image is different from the one intended by the user is likely to occur.

  The present invention has been made in view of such conventional problems, and when shooting an image obtained by synthesizing an image of another person on the face of the person who is the subject, the image desired by the user can be more reliably obtained. It is an object of the present invention to provide a camera device, a photographing method, and a photographing control program that can be acquired.

  In order to solve the above-described problem, the camera device according to the first aspect of the present invention includes an imaging unit that captures an image of a subject and a display unit that displays a subject image captured by the imaging unit as a through image. In the camera device, a face detection means for detecting a face area of a person from the subject image captured by the imaging means, an image storage means for storing a face image for synthesis, and a person detected by the face detection means An image synthesizing unit that generates a plurality of synthesized images by synthesizing the face image for synthesis stored in the image storage unit in a face area at a plurality of synthesis ratios, and a plurality of synthesized images generated by the image synthesizing unit. Display control means for displaying an image together with a through image on the display means, and a desired composite image among a plurality of composite images displayed on the display means by the display control means A selection control unit that allows a user to select; and a recording control unit that records a composite image selected by the user by the selection control unit on the recording medium in response to a user's photographing request. To do.

  In the camera device according to the second aspect of the present invention, a composition ratio control means for changing a plurality of composition ratios when the image composition means generates the plurality of composition images according to a user's request. It is provided with.

  In the camera device according to the third aspect of the present invention, a plurality of face images for synthesis are stored in the image storage unit, while a plurality of face images stored in the image storage unit are stored. A similar image extracting means for extracting a face image similar to the image of the person's face area detected by the face detecting means, and the image synthesizing means is added to the person's face area detected by the face detecting means. The face image extracted by the similar image extracting means is synthesized at a plurality of synthesis ratios to generate a plurality of synthesized images.

  In the camera device according to the fourth aspect of the invention, a plurality of face images for synthesis are stored in the image storage unit, and a plurality of face images stored in the image storage unit are included. A face image selection control unit that allows the user to select a desired face image from the image, and the image synthesis unit selects the user's face area detected by the face detection unit by the face image selection control unit. A plurality of synthesized images are generated by synthesizing the face images made at a plurality of synthesis ratios.

  According to a fifth aspect of the present invention, the recording control means stores a plurality of synthesized images generated by the image synthesizing means in a single image file and records them on the recording medium. It is characterized by making it.

  According to a sixth aspect of the present invention, there is provided a camera apparatus comprising: an imaging unit that images a subject; and a display unit that displays a subject image captured by the imaging unit as a through image. A step of detecting a person's face area from the subject image captured by the imaging means, and a step of generating a plurality of synthesized images by synthesizing the detected face image of the person at a plurality of synthesis ratios. And a step of displaying a plurality of generated composite images together with the through image, and a step of recording the generated composite images in response to a user's photographing request.

  According to a seventh aspect of the present invention, there is provided a camera apparatus comprising: an imaging unit that captures an image of a subject; and a display unit that displays a subject image captured by the imaging unit as a through image. A computer having a process of detecting a face area of a person from the subject image captured by the imaging unit, and a plurality of composite images by combining the detected face image of the person with a composite face image at a plurality of composite ratios. , A process for displaying a plurality of generated composite images together with the through image, and a process for recording the generated composite image in response to a user's photographing request.

  According to the present invention, when an image obtained by synthesizing another person's image on the face of the person who is the subject is photographed, an image desired by the user can be obtained more reliably.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing an outline of an electronic circuit configuration of a digital camera which is a camera apparatus of the present invention.

  This digital camera has a camera module 1 for capturing image data of a photographed subject. The camera module 1 includes an imaging optical system block 2, an image sensor 3, an ISP (lmage Signa1 Processor) 4, and an optical system drive control unit 5. The imaging optical system block 2 includes a zoom motor and a focusing motor for driving a lens group constituting an imaging lens (not shown), an aperture, and a mechanical shutter, which are driven by an optical system drive control unit 5 in accordance with a command from the CPU 6. Controlled.

  The image sensor 3 is an image pickup means of the present invention comprising a CCD, a CMOS sensor or the like, and photoelectrically converts and A / D converts an optical image of a subject imaged by the image pickup lens and outputs it to the ISP 4 as digital data. The output of the image sensor 3 is an output according to the color filter array (Bayer array in this embodiment) on the light receiving surface. The ISP 4 performs color adjustment and data format conversion (conversion from Bayer data to Y, Cb, Cr data) on the input digital data.

  Output signals (Y, Cr, and Cb data) from the camera module 1 (ISP 4) are transferred by the DMA 7 to the work memory 8 constituted by a DRAM or the like. The data transferred to the work memory 8 is converted into RGB format image data by the image processing unit 9 and then transferred to the VRAM 11 via the display control unit 12.

  The display control unit 12 includes a digital video encoder that generates display data (video signal) based on image data stored in the VRAM 11, and outputs the display data to a display unit 13 including a liquid crystal monitor that displays an image based on the display data. An image based on the image data stored in the VRAM 11 is displayed on the display unit 13. For example, an image sequentially captured by the camera module 1 at a predetermined frame rate in the shooting standby state is displayed as a through image. Further, the display control unit 12 combines the image data with various OSD (On Screen Display) data such as shooting condition information and a menu screen used for various operation settings of the digital camera, or includes only the menu screen. Display data is generated and displayed on the display unit 13. The display unit 13 is a display unit of the present invention.

  The Y, Cr, and Cb data stored in the work memory 8 at the time of shooting is compressed and encoded into JPEG image data by the image processing unit 9 and stored in the flash memory 10 as an image file by the CPU 6. The The image data recorded in the flash memory 10 is read by the CPU 6 as necessary, decompressed by the image processing unit 9, developed in the work memory 8, and reproduced and displayed on the display unit 13.

  The key input unit 14 includes a power button, a mode setting key, a shutter key, a menu key, a control key including a cursor key, and a SET key (not shown), and outputs a status signal indicating the operation state of each key to the CPU 6. The mode setting key is a key for setting a basic operation mode of the digital camera to a recording mode or a reproduction mode for displaying a recorded image. The above control key is a key that has a structure that allows general up / down / left / right direction instruction operation and confirmation operation in a digital camera, and is an item on a menu screen or setting screen for setting various operation contents in the digital camera. It is used for selection, selection of setting values of selected items, determination of setting contents, and the like. The shutter key has a so-called half shutter function capable of two-step operation of half-press operation (half-shutter) and full-press operation. In the recording mode, the half-press operation becomes a start trigger for the AE operation. .

  The USB control unit 15 controls communication of image data between a personal computer or the like connected to the USB connection terminal unit 16 via a USB cable and the digital camera.

  FIG. 2 is a conceptual diagram showing a memory space of the flash memory 10. As shown, the flash memory 10 has a program data storage area 10a, a setting data storage area 10b, a model image data storage area 10c, and a captured image data storage area 10d.

  The program data storage area 10a stores an operation program for the CPU 6, the above-described OSD data, and various data accompanying the operation program (AE control program AE data and the like). The setting data storage area 10b stores various setting data related to the operation contents of the digital camera, and data that can be rewritten as appropriate, such as data set by the user and automatically set data. The captured image data storage area 10d stores an image file in which the image data compressed by the image processing unit 9 is stored.

  The model image data storage area 10c stores face image data of a person registered in advance by the user. In the present embodiment, the flash memory 10 functions as the image storage means of the present invention.

  The CPU 6 controls the operation of each part of the digital camera in accordance with the status signal from the key input unit 14 and the operation program. For example, shooting operations when the shutter key is pressed, recording of image data, playback / display of recorded images, display control of various function setting screens according to operations of menu keys, cursor keys, and SET keys, and setting contents Make changes.

  Further, when the face registration mode, which is a lower mode of the reproduction mode, is set by the user, the CPU 6 notifies the user from the recorded image (image data) recorded in the flash memory 10 (captured image data storage area 10d). Select a desired image that is a copy of a person, and use an image recognition technique such as binarization, contour extraction, or pattern matching to select a person's face area from the selected image. In addition to detection using a known face detection technique such as recognizing a portion where an eye, nose, or mouth is present, the detected face area is cut out and the image data (hereinafter referred to as face image data) is extracted from the model image data. Store in the storage area 10c. Further, in the face registration mode, face image data sent from a personal computer or the like via a USB cable is also stored in the model image data storage area 10c in response to a user request.

  In addition, when the synthesis mode provided as a lower mode of the recording mode is set by the user, the CPU 6 executes processing to be described later and performs face detection means, image synthesis means, display control means, and recording control means of the present invention. , Function as selection control means, face image selection control means, composition ratio control means, and similar image extraction means. Here, in the above-described synthesis mode, the face of the person who is the subject is processed, more specifically, another face image is synthesized on the subject's face by a predetermined method to generate a synthesized image, and the photographed image is taken. This is a shooting mode for recording as an image.

  Next, the processing of the CPU 6 when the above-described synthesis mode is set in the digital camera having the above configuration will be described with reference to the flowchart of FIG.

  When the compositing mode is set, the CPU 6 immediately reads out the program related to the imaging process stored in the program data storage area 10a of the flash memory 10 as in the case of the other shooting modes in the recording mode, and operates according to the program. And a live view display on the liquid crystal monitor (display unit 13), that is, a through display of an image periodically picked up by the image sensor 3 is started (step S1). At the same time, AE processing, AWB processing, and the like are started.

  Further, immediately after the start of the live view display, the user is made to set the model image selection method (step S2). In this embodiment, two types of selection methods, “automatic selection” and “manual selection”, can be set. Specifically, a selection method setting screen is displayed on the through image on the liquid crystal monitor, and a predetermined image is displayed. The user selectively sets the selection method by key operation.

  Subsequently, the selection method of the model image set by the user is determined. When manual selection is set as the selection method (“manual selection” in step S3), the model image is displayed on the liquid crystal monitor (step S4). ). In this processing, the face image data recorded in the model image data storage area 10c of the flash memory 10 is read out, and as illustrated in FIG. 4, a plurality of model images 101a, 101b, 101c based on the read face image data are used. ,... As model selection candidates are displayed on the liquid crystal monitor, and the user selects a desired model image (face).

  Thereafter, the display of the selection image G1 is continued until a selection instruction for one of the model images is detected (YES in step S5). If a selection instruction is detected in a while (YES in step S5), the model selected accordingly The image is set as a model image used for composition (step S6).

  Subsequently, after setting the model image as described above, if the selection method of the model image selected by the user is automatic selection (“automatic selection” in step S3), the model image is immediately displayed by the user. Is detected sequentially (steps S7 and S8), and when a model image reset instruction is detected (YES in step S7), the steps after step S2 described above are performed. Repeat the process.

  On the other hand, when a half-press operation of the shutter key is detected (YES in step S8), it is a region of the face portion of an arbitrary person who is the subject from the through image at that time, that is, the image data stored in the VRAM 11. A face area is detected (step S9). In this process, as in the face registration mode described above, a face area of an arbitrary person is detected using a known face detection technique, and a partial image of the detected face area is stored in the work memory 8.

  Next, if the model image selection method set at that time is manual selection (“manual selection” in step S10), the model image set in step S6 described above is immediately added to the partial image. A plurality of synthesized images (face images) obtained by synthesizing the model images selected by the user at different synthesis ratios described later are generated (step S12).

  If the model image selection method set at that time is automatic selection (“automatic selection” in step S10), the model recorded as face image data in the model image data storage area 10c of the flash memory 10 is used. A model image most similar to the human face detected from the through image is extracted from the images (step S11). In such processing, a plurality of feature points (for example, face contour, eye distance, eye-nose-mouth distance ratio) between the partial image of the face area detected in step S9 and each model image. And the model image having the highest overall similarity is extracted. Thereafter, a plurality of synthesized images (face images) obtained by synthesizing the extracted model images at different synthesis ratios described later are generated on the partial images (step S12).

  The composition ratios described above in the present embodiment are three types different from each other by 10%, and three types of composite images are generated in the process of step S12. Note that there are three types of synthesis ratios at the beginning of operation: 10%, 20%, and 30%. The synthesis of the partial image of the face area of the subject and the model image is based on a known morphing technique.

  FIG. 5 is a diagram showing an outline of a method for synthesizing a partial image of a face area of a subject and a model image (face image). In the following description, the partial image is referred to as an original image for convenience. First, when synthesizing the original image and the model image, feature points (black circles in the figure) are set in the original image f for specifying the region of the main part A such as the outline of the face, eyes, nose and mouth. A mesh Ms is generated on the basis of the feature points. Similarly, the model image g to be synthesized is associated with each feature point of the original image f and the main part B such as the face outline, eyes, nose, mouth, and the like. A feature point to be identified (black circle in the figure) is set, and a mesh Mt is generated based on the feature point.

  Next, an intermediate mesh Mi is generated between the mesh Ms and the mesh Mt by linearly interpolate. Next, using the mesh Ms and the intermediate mesh Mi, each point of the image Ls of each mesh in the original image f is warped (transformed) to generate a first mesh image (image1), and the mesh Mt And the intermediate mesh Mi, each point of the image Lg of each mesh in the model image g is warped (transformed) and a second image (image2) is generated. Thereafter, the pixel values (luminance, color difference) of the first mesh image (image1) and the second image (image2) are cross-dissolved, or sparse intermediate pixels are detected. A composite image (image3) is generated by linearly interpolating.

  In step S12 described above, when the intermediate mesh Mi described above is generated, its arrangement is determined according to the above-described synthesis ratio. For example, if the composition ratio is 10%, that is, “original image: model image” = 9: 1, by generating an intermediate mesh Mi that internally divides the mesh Ms and the mesh Mt into 9: 1, A composite image having a composite ratio is generated.

  Thereafter, after generating the composite image of the three-stage composite ratio as described above in step S12, the CPU 6 causes the display unit 13 to display each of the generated composite images on the through image (step S13). FIG. 6 is a diagram conveniently showing an example of the display screen G2 of the liquid crystal monitor in the display unit 13 at that time. This figure shows an example in which the model image selected manually or automatically as described above is the model image 101a illustrated on the upper left in FIG.

  That is, as illustrated, in the present embodiment, the three types of synthesized images 202a to 202c having different synthesis ratios and the model image 101 are displayed side by side on the lower side of the display screen G2 displaying the through image 201. At the same time, the composite ratio (n%) of the model images in each of the composite images 202a to 202c is displayed. Note that the display of the model image 101 may be omitted.

  Thereafter, the CPU 6 detects whether or not there is a scroll instruction (direction instruction by the control key) by the user while the display screen G2 is displayed, and each time it is detected (YES in step S14), the CPU 6 responds to the detected scroll direction. In addition to generating a composite image with a new composite ratio that is increased or decreased, three types of partial images in which the generated composite image has the maximum or minimum composite ratio are displayed on the display unit 13 (step S15). For example, when the composite images 202a to 202c displayed immediately before are composite images with composite ratios of 10%, 20%, and 30% as shown in FIG. 6, an instruction to scroll to increase the composite ratio is issued. If there is, a composite image with a composite ratio of 20%, 30%, or 30% is displayed. At that time, the composition ratio (n%) is also changed.

  In addition, after displaying the display screen G2 or after scrolling the composite image on the display screen G2 in step S15, a composite image of the record candidate is set according to the recording candidate selection operation by the user (step S15). S16). That is, in accordance with a predetermined key operation, a mark indicating a selection state and a selection frame are displayed on one or a plurality of composite images.

  Subsequently, after setting the composite image of the recording candidate, it is confirmed whether or not the shutter key is fully pressed. If the shutter key is not fully pressed (NO in step S17), the process returns to step S14 and the user's key operation is performed. In response to this, scroll display of the composite image (step 15) and setting of the recording candidate (step S16) are repeatedly performed.

  Thereafter, when the CPU 6 detects that the shutter key is fully pressed (YES in step S17), the one or a plurality of composite images set at that time (selected by the user) together with the original image is an extended format image to be described later. The files are collectively recorded in the photographed image data storage area 10d of the flash memory 10 as a file (step S18), and the photographing process is completed.

  FIG. 7 is a diagram showing a schematic structure of an extended format image file generated by the CPU 6 in such processing. The extended format image file has a structure in which a plurality of image data is stored in a batch so as to be individually reproducible as main image data and single or a plurality of sub image data, and is basically an Exif (Exchangeable Image File). Format) is a file format conforming to the format, but is different in that the management information of the sub-image data is included in the main image header.

  That is, as shown in FIG. 7A, the extended format image file 500 has a plurality of sub-image data areas (starting from the SOI marker, similar to the main image data area) following the main image data area starting from the SOI marker. In the figure, sub-images (1), (2), (3),. The configuration of each sub-image data area is the same as that of the main image data area. As shown in FIGS. 7B and 7C, the configuration of each sub-image header corresponding to the main image header is also JPEG compressed data. It conforms to the basic structure of

  Also, as shown in FIG. 7D, the main image information (0th IFD) constituting the main image header includes “Exif IFD” and “Value of Exif IFD” which are auxiliary information regarding the compressed main image. In addition, the auxiliary information “IFD” and “Value of IFD” relating to each compressed sub-image are stored as the number of sub-images as sub-image data management information, and the “Exif IFD” of the main image is stored. The sub-image area presence / absence information is stored as sub-image management information.

  In step S18, the CPU 6 uses the compressed image data of the original image displayed as the through image as the main image data, and the compressed image data of one or a plurality of composite images selected by the user as the sub image data. An extended format image file stored as image data is generated and recorded in the flash memory 10.

  Although omitted in FIG. 3, if the shutter key is half-pressed at any point in time after the shutter key is half-pressed until the shutter key is fully pressed, Immediately return to step S2.

  As described above, in the digital camera of the present embodiment, when a person is photographed using the above-described composition mode, an image obtained by compositing another person's face (model image) on the face of the person who is the subject at the time of photographing. (Composite image) can be recorded as a captured image. In this case, the user selects a plurality of composite images that can be recorded as photographed images at different stages of the standby state before fully pressing the shutter key and that have different composite ratios of model images. It can be confirmed in advance on the through screen, and only the desired composite image can be recorded.

  Therefore, the content of the image processing performed when shooting in the composite mode is to combine the face of another person with the face of the person who is the subject, and accurately imagine the image actually recorded at the time of shooting Even if it is not possible, the user can reliably obtain a desired image.

  Further, in the present embodiment, since the combination ratio of the model images in the plurality of combined images described above can be changed as necessary, the user can acquire a desired image even more reliably.

  If automatic selection is set as the model image selection method, the model image of the face most similar to the face of the person who is the subject is automatically extracted from the model images stored in the flash memory 10. Since a synthesis process using the image is performed, it is possible to easily obtain a natural face image without a sense of incongruity as a synthesized image.

  In the present embodiment, two types of model image selection methods, automatic selection and manual selection, are provided, and the model image selection method can be appropriately set by the user. The selection method may be only one of the above two methods.

  In addition, although one or a plurality of composite images selected by the user are collectively recorded in one image file together with the subject image (original image) displayed as a through image, it is displayed as a through image. When there are a plurality of composite images selected by the user without recording the subject image that has been recorded, only those composite images are recorded in a single image file, and when there is only one composite image selected by the user, May be recorded as a normal image file. Furthermore, even when there are a plurality of composite images selected by the user, they may be recorded as normal image files.

  In this embodiment, three types of synthesized images having different model image synthesis ratios are generated even for a captured image at the time when the shutter key is half-pressed, and these synthesized images are used as recording candidates. It may be as follows. For example, the above three types of composite images are generated every time a new image is captured in a predetermined frame in the shooting standby state regardless of half-pressing of the shutter key, and the composite images displayed on the through screen are sequentially generated. In the meantime, only the composition ratio change according to the scroll instruction and the composite image are updated. Then, when the shutter key is fully pressed, the composite image being displayed is determined as a recording candidate, and a desired composite image is selected from them, and then the selected composite image or images are recorded. You may do it.

  In addition, the composite image that is finally recorded at the time of shooting in the composite mode does not have to be a composite image of only the face portion of the subject, but is an entire image including the face portion other than the face portion that has been subjected to the composite processing described above. It does not matter.

  Further, although the case where the present invention is used in a digital camera has been described, the present invention is, for example, as long as it has a function of combining an image of another person with the face of a person who is a subject at the time of still image shooting. The present invention can also be applied to other camera devices such as a digital video camera having a still image shooting function and a mobile phone terminal with a camera.

1 is a block diagram of a digital camera according to the present invention. It is a conceptual diagram which shows the memory space of flash memory. It is the flowchart which showed the processing content of CPU at the time of imaging | photography by synthetic | combination mode. It is the figure which showed an example of the selection screen of a model image. It is a schematic explanatory drawing which shows the basic composition method of an original image and a model image. It is the figure which showed an example of the display method of the composite image of the face part in a display part. It is a figure which shows the file structure in the image file of the extended format described at the time of imaging | photography by a synthetic | combination mode.

Explanation of symbols

1 Camera module 3 Image sensor 6 CPU
7 DMA
8 Work memory 9 Image processing unit 10 Flash memory 10a Program data storage area 10b Setting data storage area 10c Model image data storage area 10d Captured image data storage area 11 VRAM
12 Display control unit 13 Display unit 14 Key input unit

Claims (7)

In a camera apparatus including an imaging unit that images a subject and a display unit that displays a subject image captured by the imaging unit as a through image,
Face detection means for detecting a face area of a person from a subject image imaged by the imaging means;
Image storage means for storing a face image for synthesis;
Image synthesizing means for synthesizing a face image for synthesis stored in the image storage means with a plurality of synthesis ratios to a face area of the person detected by the face detecting means to generate a plurality of synthesized images;
Display control means for displaying a plurality of composite images generated by the image composition means together with a through image on the display means;
Selection control means for allowing a user to select a desired composite image from among a plurality of composite images displayed on the display means by the display control means;
A camera apparatus comprising: a recording control unit that records a composite image selected by the user by the selection control unit on the recording medium in response to a user's photographing request.   The camera apparatus according to claim 1, further comprising a composition ratio control unit configured to change a plurality of composition ratios when the image composition unit generates the plurality of composite images according to a user's request. The image storage means stores a plurality of face images for synthesis,
A similar image extracting means for extracting a face image similar to the image of the face area of the person detected by the face detecting means from the plurality of face images stored in the image storing means;
The image synthesizing unit generates a plurality of synthesized images by synthesizing the face image extracted by the similar image extracting unit with a plurality of synthesis ratios in the face area of the person detected by the face detecting unit. The camera device according to claim 1 or 2. The image storage means stores a plurality of face images for synthesis,
A face image selection control means for allowing a user to select a desired face image from a plurality of face images stored in the image storage means;
The image synthesizing unit generates a plurality of synthesized images by synthesizing the face image selected by the user by the face image selection control unit at a plurality of synthesis ratios with the face area of the person detected by the face detecting unit. The camera device according to claim 1, wherein: 5. The camera device according to claim 1, wherein the recording control unit stores a plurality of synthesized images generated by the image synthesizing unit in a single image file and records the same on the recording medium. 6. . In a camera apparatus including an imaging unit that images a subject and a display unit that displays a subject image captured by the imaging unit as a through image,
Detecting a human face area from the subject image captured by the imaging means;
Generating a plurality of synthesized images by synthesizing a face image for synthesis with a plurality of synthesis ratios in the detected human face area;
Displaying a plurality of generated composite images together with the through image;
And a step of recording the generated composite image in response to a user's photographing request. A computer having a camera device including an imaging unit that images a subject and a display unit that displays a subject image captured by the imaging unit as a through image;
A process of detecting a human face area from the subject image captured by the imaging means;
A process of generating a plurality of synthesized images by synthesizing a face image for synthesis with a plurality of synthesis ratios in the detected human face area;
Processing to display a plurality of generated composite images together with the through image;
A shooting control program that executes a process of recording a generated composite image in response to a shooting request of a user.

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