JP2015088849A - Imaging apparatus, imaging method and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To produce a natural image on which an appreciator does not feel a sense of incompatibility, by combining two images through appropriate processing.SOLUTION: An imaging apparatus includes: first imaging means for capturing a first image; second imaging means for capturing a second image in an imaging direction that is inverse to an imaging direction of the first imaging means; acquisition means for acquiring an amount of tilting; rotation means for rotating the first image in accordance with the amount of tilting that is acquired by the acquisition means; and combination means for combining the first image that is rotated by the rotation means, with the second image. The combination means combines the images after the first image is rotated in accordance with the amount of tilting but the second image is not rotated.

Description

  The present invention relates to a photographing apparatus, a photographing method, and a program.

2. Description of the Related Art Conventionally, there has been known a digital camera including a photographing unit for photographing a photographer in addition to a photographing unit for photographing a subject image. In such a digital camera, a technique for synthesizing images obtained by two photographing units is known. Thereby, the state of the photographer can be recorded together with the photographed image.
Further, a technique for controlling the orientation of an image displayed on a display unit based on the vertical direction of a captured image obtained by the imaging unit is known (see, for example, Patent Document 1).

JP 2008-177819 A

  However, when combining two images, it is desirable to perform more appropriate processing to prevent the viewer from feeling uncomfortable.

  The present invention has been made in view of such problems, and an object of the present invention is to synthesize two images by an appropriate process and generate a natural image that does not give the viewer a sense of incongruity.

  Therefore, the present invention is a photographing apparatus, wherein the first photographing means for photographing the first image and the second image for photographing the second image in the photographing direction opposite to the photographing direction of the first photographing means. Two imaging means, an acquisition means for acquiring an inclination amount, a rotation means for rotating the first image in accordance with the inclination amount acquired by the acquisition means, and the first image rotated by the rotation means And a synthesizing unit that synthesizes the second image, and the synthesizing unit synthesizes the first image without rotating the first image, although the first image is rotated according to the tilt amount. It is characterized by doing.

  According to the present invention, it is possible to synthesize two images by an appropriate process and generate a natural image that does not cause the viewer to feel uncomfortable.

It is a figure which shows a digital camera. It is a figure which shows a digital camera. It is a flowchart which shows an imaging | photography process. It is a figure which shows the example of a display of a live image | video. It is a figure for demonstrating the process with respect to a back image. It is a figure which shows an example of a synthesized image. It is a flowchart which shows a reproduction | regeneration process.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
(First embodiment)
FIG. 1 is an external view of a digital camera as a photographing apparatus according to the first embodiment. The digital camera 1 includes a power button 2, a release button 3, a zoom lever 4, a display unit 5, an operation button 6, a rear photographing unit 7, a cover 8, a lens barrel unit 9, and a front photographing unit 10. And.
The front photographing unit 10 photographs a subject with a composition intended by the photographer. The rear photographing unit 7 is provided on the surface opposite to the front photographing unit 10 and can photograph the photographer. That is, the photographing direction (optical axis) of the rear photographing unit 7 is opposite to the photographing direction (optical axis) of the front photographing unit 10. Note that the shooting direction of the rear shooting unit 7 may be different from the shooting direction of the front shooting unit 10. Hereinafter, the captured images obtained by the front capturing unit 10 and the rear capturing unit 7 are appropriately referred to as a front captured image and a rear captured image.

The power button 2 receives a power ON / OFF operation of the digital camera 1 from the user. The lens barrel 9 is stored in the cover 8 when the digital camera 1 is powered off. When the power of the digital camera 1 is turned on, the lens barrel 9 is drawn out by a driving unit (not shown) to be in a protruding state (the state shown in FIG. 1), so that the front photographing unit 10 can be photographed.
In the photographing enabled state, the telephoto and wide angle of the lens barrel portion 9 are controlled by the operation of the zoom lever 4 by the user, and the angle of view of the photographing data is determined. Further, the user performs shooting by pressing the release button 3 and the captured image is recorded.

The operation button 6 is an operation unit for the user to perform each setting of the digital camera 1. The digital camera 1 according to the present embodiment has a playback mode and a shooting mode as operation modes. And the operation button 6 receives selection of an operation mode, for example. The operation button 6 also accepts settings such as the number of photographic pixels (photographing size) and the aspect ratio of the photographic image.
The display unit 5 displays a photographed image (live video) photographed by the front photographing unit 10 and the rear photographing unit 7 in a photographing ready state. The display unit 5 also displays a captured image recorded on a recording medium included in the digital camera 1 in the playback mode.

FIG. 2 is a diagram illustrating the configuration of the digital camera 1. The digital camera 1 further includes a CPU 11, a card slot 20, an attitude detection sensor 22, and an internal memory 23. The front photographing unit 10 and the rear photographing unit 7 include AF units 10a and 7a, respectively. The AF units 10a and 7a focus each subject. The AF units 10a and 7a are also driven by a driving device (not shown) when the release button 3 is half-pressed by the user.
The posture detection sensor 22 detects the tilt amount of the main body of the digital camera 1 and outputs the tilt amount of the main body to the CPU 11. Here, the main body tilt amount indicates the posture of the digital camera 1 held by the user, and in this embodiment, the tilt amount (rotation amount) around the photographing direction (optical axis) of the rear photographing unit 7. It is. Since the photographing direction (optical axis) of the rear photographing unit 7 is opposite to the photographing direction (optical axis) of the front photographing unit 10, the main body tilt amount detected by the posture detection sensor 22 is the photographing direction (light) of the front photographing unit 10. It is also the amount of tilt (rotation amount) around the axis.

The vertical direction of the digital camera 1 according to the present embodiment is a direction that coincides with the short side direction of the substantially rectangular display unit 5. In the digital camera 1, each part is arranged on the assumption that a captured image is captured and reproduced as a horizontally long image. That is, in the state where the vertical direction of the digital camera 1 is matched with the vertical direction, the obtained captured image is a horizontally long image.
Here, the horizontally long image is an image having an aspect ratio of 1 or more, that is, an image in which the short side direction of the rectangular image is the vertical direction. An image having an aspect ratio of less than 1, that is, an image in which the long side direction of a rectangular image is the vertical direction is referred to as a vertically long image.
Note that the digital camera 1 determines that the main body tilt amount is more than a certain level and determines that the main body is held in the vertical direction, and records the captured image as a vertically long image. The digital camera 1 displays the captured image on the display unit 5 in accordance with the recorded direction when displaying the captured image.

The CPU 11 controls the entire digital camera 1. The internal memory 23 stores various information. The card slot 20 carries a recording medium 21. The recording medium 21 stores captured images, for example. Note that the functions and processes of the digital camera 1 to be described later are realized by the CPU 11 reading a program stored in the internal memory 23 and executing the program.
CPU11 processes the picked-up image acquired from the front imaging | photography part 10 or the rear imaging | photography part 7, for example. As processing for a captured image, the CPU 11 specifies whether the captured image is a horizontally long image or a horizontally long image based on, for example, the main body tilt amount. The CPU 11 also performs rotation and trimming processing on the rear image based on the main body tilt amount and the detection result of the face area. Then, the CPU 11 combines the processed rear image and the front image, and stores the combined image in the recording medium 21 or the like.

FIG. 3 is a flowchart showing a photographing process by the digital camera 1. The photographing process is a process executed when the photographing mode is selected as the operation mode by the operation of the operation button 6 by the user. When the user presses the power button 2 to turn on the power, the CPU 11 activates the digital camera 1 in the shooting mode (S1). Next, according to the operation of the operation button 6 by the user, the CPU 11 accepts various setting inputs such as a shooting mode and a shooting size (number of pixels), and performs settings according to the input (S2). Furthermore, the digital camera 1 activates the front photographing unit 10.
The digital camera 1 according to the present embodiment has a composite shooting mode and a normal shooting mode as shooting modes. The composite shooting mode is a mode in which the digital camera 1 performs a process of capturing a front image and a rear image substantially simultaneously and recording a composite image obtained by combining both images. The normal shooting mode is a mode in which the digital camera 1 performs a process of shooting only the front image and recording the front image.

FIG. 4 is a diagram illustrating an example of a live video displayed on the display unit 5 in the composite shooting mode. As shown in FIG. 4, the front live image 400 obtained by the front photographing unit 10 and the rear live image 410 obtained by the rear photographing unit 7 are displayed on the display unit 5.
In the example of FIG. 4, the photographer rotates the subject 401 around the photographing direction so as to photograph the subject 401 with a slight angle, and the digital camera 1 is slightly tilted with respect to the vertical direction B. Holding. That is, the vertical direction A of the digital camera 1 is rotating around the shooting direction. Thereby, in the front live image 400, the subject 401 is displayed in a state where the vertical direction C thereof is inclined with respect to the vertical direction A of the digital camera 1.
In this state, it is assumed that the vertical direction of the photographer's face is inclined with respect to the vertical direction A of the camera. In this case, in the rear live image 410 obtained by the rear photographing unit 7, the vertical direction D of the photographer's face (subject) 411 is inclined with respect to the vertical direction E of the rear live image 410.

Note that the CPU 11 displays, on the display unit 5, an image obtained by horizontally inverting the rear live video actually obtained by the rear photographing unit 7, such as an image reflected in the mirror, as the rear live video 410. . This is to prevent the photographer from feeling uncomfortable when confirming the rear live image 410 before photographing.
For example, when the rear live image obtained by the rear photographing unit 7 is displayed on the display unit 5, when the photographer raises his right hand, a video with the left hand raised on the display unit 5 is displayed. Therefore, the photographer feels uncomfortable.
Therefore, in the present embodiment, the CPU 11 displays a video obtained by horizontally inverting the rear live video obtained by the rear photographing unit 7 as the rear live video 410 in order to display an image that appears in the mirror. . It is assumed that the CPU 11 can set or change the presence / absence of left / right reversal according to the operation of the operation button 6 or the like by the user.
Note that when displaying the live video, the CPU 11 detects a face area as a subject from the front live video 400 and superimposes the rear live video 410 on a position that does not overlap the face area.

Returning to FIG. 3, when the process of S <b> 2 ends and the camera is ready to shoot, the CPU 11 instructs the attitude detection sensor 22 to detect the attitude, and acquires the main body tilt amount from the attitude detection sensor 22 (S <b> 3). Next, the CPU 11 confirms the set shooting mode (S4). If the shooting mode is set to the normal shooting mode (NO in S4), the CPU 11 advances the process to S5.
Then, the CPU 11 performs a normal photographing process (S5). Specifically, the CPU 11 does not activate the rear photographing unit 7 but activates only the front photographing unit 10. Then, the CPU 11 acquires a captured image (front image) captured by the front capturing unit 10 in response to a user operation, and stores the acquired front image in the recording medium 21.

On the other hand, when the shooting mode is set to the composite shooting mode in S4 (YES in S4), the CPU 11 advances the process to S6 and performs the composite shooting process. That is, first, the CPU 11 checks whether or not rotation of the rear image is designated (S6). It is assumed that information indicating whether to rotate the rear image is set in advance by the user and stored in the internal memory 23. Then, the CPU 11 confirms the designation of the rotation of the rear image by referring to the information stored in the internal memory 23.
Next, the CPU 11 activates the rear photographing unit 7 so as to enable photographing by the rear photographing unit 7 (S7). Next, the CPU 11 displays an image obtained by the front photographing unit 10 and the rear photographing unit 7 on the display unit 5 as a live video (S8).

Next, when the release button 3 is pressed by the user, the CPU 11 accepts an input of a shooting instruction (S9), and the CPU 11 instructs a shooting by the front shooting unit 10 (S10). In response to this, the front photographing unit 10 photographs a front image. Next, the CPU 11 acquires a front image obtained by photographing from the front photographing unit 10, and obtains a main body tilt amount from the posture detection sensor 22. And CPU11 specifies the up-down direction of the image | photographed front image based on the main body inclination amount, and specifies whether it is a horizontally long image which is a vertically long image. The front image and direction information indicating the vertical direction of the front image are associated with each other and temporarily stored in the internal memory 23 (S11).
In the digital camera 1, the internal memory 23 stores in advance a direction determination table that associates the amount of tilt and the direction of the long side or the short side of the captured image (the front image and the back image) as the vertical direction. It is assumed that Then, the CPU 11 refers to the direction determination table and specifies the top-to-bottom direction of the captured image based on the main body tilt amount obtained by the posture detection sensor 22.
Next, the CPU 11 instructs photographing by the rear photographing unit 7 (S12). In response to this, the rear photographing unit 7 photographs a rear image. Next, the CPU 11 acquires a rear image photographed from the rear photographing unit 7 and obtains a main body tilt amount from the posture detection sensor 22. Then, the CPU 11 refers to the direction determination table and specifies the top / bottom direction of the captured rear image based on the main body tilt amount. Then, the CPU 11 associates the rear image with the direction information indicating the vertical direction of the rear image and temporarily stores it in the internal memory 23 (S13). In the digital camera of this embodiment, since the optical axes of the front photographing unit and the rear photographing unit are parallel, the front image and the rear image have the same vertical direction.

Note that the photographing timings of the front photographing unit 10 and the rear photographing unit 7 are substantially the same. However, the photographing timings of the front photographing unit 10 and the rear photographing unit 7 are not limited to the embodiment.
As another example, the CPU 11 may accept designation of shooting timings of the front image and the rear image to be combined from the user. In this case, the user may press the release button 3 twice to capture each of the front image and the rear image. As another example, the rear photographing unit 7 may perform photographing after a certain time after photographing by the front photographing unit 10.

Next, the CPU 11 reads a rear image from the internal memory 23 and detects a face area of a person (photographer) as a subject from the rear image (S14). When the face area is detected (YES in S14), the CPU 11 advances the process to S15. Then, the CPU 11 detects more detailed information about the face from the face area (S15). The CPU 11 specifies and detects as detailed information, for example, the position and size of both eyes, the position and size of the nose, the position and size of the mouth, the position of the contour, and the like as much as possible.
Next, the CPU 11 specifies the vertical direction of the person as the subject based on the detailed information regarding the face (S16). Specifically, for example, the CPU 11 determines a straight line connecting the center positions of both eyes as a horizontal line and a straight line direction perpendicular to the horizontal line and passing through the center of the nose as the vertical direction of the face. Here, the process of S16 is an example of a direction specifying process.

Next, when the rotation of the rear image is designated in S6, the CPU 11 specifies the vertical inclination of the face area with respect to the vertical direction of the rear image (S17). Next, the CPU 11 compares the inclination specified in S17 with the inclination threshold value. If the specified tilt is equal to or greater than the tilt threshold, the CPU 11 determines the specified tilt as a rotation angle, and rotates the rear image by the determined rotation angle (S18). It is assumed that the inclination threshold is stored in advance in the internal memory 23 or the like.
If the tilt is less than the tilt threshold, that is, if the tilt amount is within a predetermined range, the CPU 11 advances the process to S19 without performing the process of rotating the rear image. This is because the rear image is displayed on the display unit 5 at the time of photographing, and there is a possibility that the photographer is photographing an image displayed intentionally.

Next, the CPU 11 determines a region of the image including the face from the rear image as a trimming range, and trims the face region based on the determined trimming range to cut out a partial region of the rear image (S19). Here, the process of S19 is an example of a cutting process.
In the trimming range determination process, the CPU 11 obtains a contour range of the face including the head by, for example, face detection calculation. Then, the CPU 11 determines, as the trimming range, a circular shape having the center of the contour range as the center of the circle and sufficiently including the face contour range farthest from the center of the circle.

Here, the processing of S16 to S19 will be specifically described with reference to FIG. A rear image 500 shown in FIG. 5 is a rear image obtained when the release button 3 is pressed in the state shown in FIG. Here, it is assumed that the rear image is determined to be a horizontally long image.
In S16, the CPU 11 obtains a straight line F connecting the center positions of both eyes from the face area. Then, a straight line G perpendicular to the straight line F and passing through the center of the nose is obtained. Then, the CPU 11 specifies the direction of the straight line G as the vertical direction of the face area. In S <b> 17, the CPU 11 specifies the inclination α of the straight line G indicating the vertical direction of the face region with respect to the straight line H indicating the vertical direction of the rear image 500 (short side of the rear image 500). Further, in S18, the inclination α and the inclination threshold value are compared, and the rear image 500 is appropriately rotated according to the comparison result.

In S19, the CPU 11 obtains a circle including the face outline range 501 as a trimming range 502 as shown in FIG. 4, and cuts out an image of the trimming range 502, that is, a face area as a subject image.
Note that the image in the trimming range is an image to be combined with the front image. The image to be combined with the front image is a subject image of a photographer or the like included in the rear image. Since the rear photographing unit 7 photographs the photographer and is close to the subject, the trimming range is preferably as large as possible. In order to cut out a large area regardless of the angle of inclination, the shape of the trimming range is preferably a circle. From this viewpoint, in the digital camera 1 according to the present embodiment, the shape of the trimming range is a circle, but the shape of the trimming range is not limited to the embodiment. From the above viewpoint, the trimming range may be, for example, a regular polygon such as a square.

Returning to FIG. 3, after the process of S19, the CPU 11 synthesizes the face area cut out after the rotation process and the front image (S20). Specifically, the CPU 11 superimposes the face area on the front image. In the synthesizing process, the CPU 11 retrieves a human face area from the front image. Then, when the face area is detected, the CPU 11 superimposes the face area as the subject image cut out from the rear image on the area other than the face area in the front image. Here, the process of S20 is an example of a synthesis process.
Next, the CPU 11 stores the composite image in the recording medium 21 (S21). Specifically, the CPU 11 stores auxiliary information such as EXIF of the front image as the original image, setting information of the digital camera 1 when the front image data is generated, and the like in the recording medium 21 together with the composite image.

Next, the CPU 11 adjusts the number of pixels, color, and the like of the composite image, and then displays the adjusted composite image on the display unit 5 for a predetermined time (S22). Thereby, the photographer can confirm whether or not a composite image as intended is generated. Further, at this time, if the photographer determines that the composite image is unnecessary, the photographer can perform operations such as deleting the composite image from the recording medium 21 and performing photographing again.
After the composite image is displayed for a certain time, the CPU 11 deletes the composite image, the front image, and the rear image that are temporarily stored in the internal memory 23 (S23), and ends the photographing process. As described above, since the internal memory 23 is appropriately cleared, it is possible to prevent the inconvenience that the image cannot be stored in the internal memory 23.

FIG. 6 is a diagram illustrating an example of a composite image. The composite image 600 shown in FIG. 6 is generated when the release button 3 is pressed in the state shown in FIG. When the front image 610 corresponding to the composite image 600 shown in FIG. 6 is captured, the digital camera 1 is slightly tilted with respect to the vertical direction, but the main body tilt amount does not exceed a certain value. And For this reason, the short side direction of the composite image 600 is specified as the vertical direction of the composite image 600. That is, the composite image 600 is determined as a horizontally long image.
The composite image 600 includes a front image 610 and a face area 620. Furthermore, as shown in FIG. 6, the vertical direction I of the photographer's face area 620 included in the face area 620 is substantially parallel to the vertical direction J of the front image 610. Further, the face area 620 is disposed at a position where a useless image is removed by trimming the rear image and does not overlap the subject image 611 of the front image 610.

On the other hand, for the front image 610, the face area is detected and information about the face area is recorded together with the front image, but processing such as rotation of the detected face area with respect to the subject image 611 is not performed. Therefore, the vertical direction K of the human face of the subject image 611 included in the front image 610 is inclined with respect to the vertical direction J of the front image 610.
Thus, since the CPU 11 does not perform processing such as rotation on the front image 610, it can obtain a photographed image having a composition as intended by the photographer. On the other hand, the CPU 11 can superimpose the face area 620 indicating the photographer on the front image in a state in which the viewer can easily see the image by rotation and trimming.

  Returning to FIG. 3, when the face area is not detected in S14 (NO in S14), the CPU 11 advances the process to S24. In this case, the CPU 11 further reads the front image from the internal memory 23 and synthesizes the rear image with the front image (S24). Specifically, the CPU 11 reduces the rear image and superimposes the rear image after reduction on a partial area of the front image. In this case, the CPU 11 may further display on the display unit 5 that the face area cannot be detected. Thus, the photographer can know that the composite image has been generated in a state where the face area is not detected.

  As described above, the digital camera 1 according to the present embodiment appropriately rotates the rear image when the rear image is combined with the front image. Thereby, the digital camera 1 can match the up-and-down direction of the photographer in the rear image with the up-and-down direction of the front image while maintaining the front image intended by the photographer. Therefore, the CPU 11 can combine the two images by appropriate processing to generate a natural image that does not cause the viewer to feel uncomfortable.

As another example, the digital camera 1 may superimpose the entire rear image on the front image without performing trimming (cutout) processing.
In the present embodiment, the rear image is rotated in accordance with the vertical direction of the subject in the face area detected from the rear image. However, the processing for detecting the face area and determining the vertical direction of the face area is heavy. Also, usually, a photographer rarely shoots with his / her face tilted. Therefore, the digital camera 1 may use the main body tilt amount of the digital camera 1 detected by the posture detection sensor 22 instead of the tilt amount of the face area of the rear image. When using the main body tilt amount detected by the posture detection sensor 22, the digital camera 1 does not detect the face area of the rear image, rotates the rear image according to the main body tilt amount, and displays the center portion of the rear image. Trim automatically. Alternatively, the digital camera 1 rotates the rear image using the main body tilt amount detected by the posture detection sensor 22, performs only simple face area detection processing, and automatically trims the detected face area to be included. You may make it do. In this case, the digital camera 1 may be configured not to rotate the rear image when the face area is not detected.
In the present embodiment, the rotation is performed at the time of recording an image. However, the digital camera 1 may rotate the rear live video by the above-described method when the live video is displayed.

(Second Embodiment)
Next, a digital camera 1 according to the second embodiment will be described. The digital camera 1 according to the second embodiment stores a front image and a rear image captured at corresponding shooting timings in the recording medium 21 in association with each other at the time of shooting. Then, in the playback mode, the digital camera 1 combines the front image and the rear image and displays the combined image.
The digital camera 1 has a two-image shooting mode as a shooting mode in addition to a normal shooting mode and a composite shooting mode. In the two-image shooting mode, when the release button 3 is pressed, the digital camera 1 obtains a front image via the front photographing unit 10 and further obtains a rear image via the rear photographing unit 7. Then, the digital camera 1 stores the obtained front image, direction information indicating the vertical direction of the front image, the rear image, and direction information indicating the vertical direction of the rear image in the recording medium 21 in association with each other.

FIG. 7 is a flowchart showing a reproduction process by the digital camera 1 according to the second embodiment. The reproduction process is a process executed when the reproduction mode is selected as the operation mode by the operation of the power button 2 and the operation button 6 by the user. When the playback mode is selected, the CPU 11 activates the digital camera 1 in the playback mode (S31). Next, the CPU 11 accepts input such as setting of the playback mode in accordance with the operation of the operation button 6 by the user, and performs setting according to the input (S32).
The digital camera 1 according to the present embodiment has a composite playback mode and a normal playback mode as playback modes. The composite playback mode is a mode for performing processing for combining and displaying the front image and the rear image captured at substantially the same time. The normal playback mode is a mode for performing processing for displaying only the front image.

Next, the CPU 11 confirms the set reproduction mode (S33). If the playback mode is set to the normal playback mode (NO in S33), the CPU 11 advances the process to S34.
Then, the CPU 11 performs normal reproduction processing (S34). Specifically, the CPU 11 reads the front image from the recording medium 21 and creates a thumbnail of each front image. Then, the CPU 11 displays a thumbnail list on the display unit 5. When a thumbnail is selected by the user, the CPU 11 reads the selected front image from the recording medium 21. The CPU 11 performs image processing for matching the front image with the number of pixels of the display unit 5 and the expressible color gamut, and displays the front image after the image processing.

On the other hand, if the playback mode is set to the composite playback mode in S33 (YES in S33), the CPU 11 reads the front image and displays a thumbnail list of the front image on the display unit 5 as in the normal playback process. indicate.
When the thumbnail is selected by the user, the selected front image is read from the recording medium 21 (S35). Further, the CPU 11 reads the rear image associated with the selected front image from the recording medium 21 (S36).

As another example, the CPU 11 may display a thumbnail list including thumbnails of the rear image associated with the front image. In this case, when a thumbnail is selected, the CPU 11 reads the selected rear image and the front image associated with the selected rear image from the recording medium 21.
Hereinafter, the processing of S14 to S20 is the same as the processing of S14 to 20 (FIG. 3) in the photographing processing of the first embodiment.

Then, after the composite image is generated in S20, the CPU 11 advances the process to S37. Then, the CPU 11 detects the main body tilt amount from the posture detection sensor (S37), and appropriately rotates the composite image based on the main body tilt amount and the direction information associated with the front image as the original image of the composite image. Then, the composite image after rotation is displayed on the display unit 5 (S38). This completes the playback process.
The remaining configuration and processing of the digital camera 1 according to the second embodiment are the same as the configuration and processing of the digital camera 1 according to the first embodiment.

  As described above, the digital camera 1 according to the second embodiment appropriately rotates the rear image when the front image and the rear image are combined during reproduction. Thereby, the digital camera 1 can match the up-and-down direction of the photographer in the rear image with the up-and-down direction of the front image while maintaining the front image intended by the photographer. Therefore, the CPU 11 can combine the two images by appropriate processing to generate a natural image that does not cause the viewer to feel uncomfortable.

  As described above, according to each of the above-described embodiments, it is possible to combine the two images by appropriate processing and generate a natural image that does not cause the viewer to feel uncomfortable.

The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to such specific embodiments, and various modifications can be made within the scope of the gist of the present invention described in the claims.・ Change is possible.
Although the present invention has been described in detail based on preferred embodiments thereof, the present invention is not limited to these specific embodiments, and various forms within the scope of the present invention are also included in the present invention. included. A part of the above-described embodiments may be appropriately combined.

Also, when a software program that realizes the functions of the above-described embodiments is supplied from a recording medium directly to a system or apparatus having a computer that can execute the program using wired / wireless communication, and the program is executed Are also included in the present invention.
Accordingly, the program code itself supplied and installed in the computer in order to implement the functional processing of the present invention by the computer also realizes the present invention. That is, the computer program itself for realizing the functional processing of the present invention is also included in the present invention.

In this case, the program may be in any form as long as it has a program function, such as an object code, a program executed by an interpreter, or script data supplied to the OS. As a recording medium for supplying the program, for example, a magnetic recording medium such as a hard disk or a magnetic tape, an optical / magneto-optical storage medium, or a nonvolatile semiconductor memory may be used.
A computer program forming the present invention may be stored in a server on a computer network, and a connected client computer may download and execute the computer program.

1 Digital Camera, 7 Rear Shooting Unit, 10 Front Shooting Unit, 11 CPU, 23 Internal Memory

Claims (14)

First photographing means for photographing a first image;
A second photographing means for photographing a second image in a photographing direction opposite to the photographing direction of the first photographing means;
Acquisition means for acquiring the amount of inclination;
A rotating means for rotating the first image according to the amount of inclination acquired by the acquiring means;
Combining means for combining the first image and the second image rotated by the rotating means;
Have
The synthesizer may synthesize the first image without rotating the first image while rotating the first image according to the amount of tilt. The acquisition means acquires the amount of tilt of the photographing device,
The imaging apparatus according to claim 1, wherein the rotation unit rotates the first image according to an inclination amount of the imaging apparatus. The acquisition unit acquires a tilt amount of a subject included in the first image,
The imaging apparatus according to claim 1, wherein the rotation unit rotates the first image in accordance with a tilt amount of a subject of the imaging apparatus. Determining means for determining whether a face is included in the first image;
4. The photographing according to claim 1, wherein the rotation unit does not rotate the first image when it is determined that the face is not included in the first image. 5. apparatus.   5. The photographing apparatus according to claim 1, wherein the rotation unit does not rotate the first image when an inclination amount acquired by the acquisition unit is within a predetermined range. 6. .   The photographing apparatus according to claim 1, wherein the synthesizing unit synthesizes the second image with a partial region of the rotated first image.   7. The photographing according to claim 1, wherein the synthesizing unit cuts out a face area from the first image, and synthesizes the image of the cut out face area and the second image. apparatus.   The photographing apparatus according to claim 6 or 7, wherein the synthesizing unit synthesizes an image cut out from the first image in a circular shape or a regular polygon shape and the second image.   The imaging apparatus according to claim 2, wherein the acquisition unit acquires the rotation amount of the imaging apparatus around the imaging direction of the first imaging unit as an inclination amount.   The photographing apparatus according to claim 1, wherein the synthesizing unit synthesizes the first image by superimposing the first image on the second image.   11. The photographing according to claim 1, wherein the first photographing unit is arranged so that a photographer photographing the second image is photographed as a subject. apparatus. A shooting method performed by a shooting device,
A first photographing step for photographing a first image;
A second shooting step of shooting a second image in a shooting direction opposite to the shooting direction in the first shooting step;
An acquisition step for acquiring the amount of inclination;
A rotation step of rotating the first image according to the amount of inclination acquired in the acquisition step;
A synthesis step of synthesizing the first image rotated in the rotation step and the second image;
In the synthesizing step, the first image is rotated according to the tilt amount, but the second image is synthesized without being rotated. Computer
First acquisition means for acquiring a first image;
Second acquisition means for acquiring a second image shot in a shooting direction opposite to the shooting direction of the first image;
Acquisition means for acquiring the amount of inclination;
A rotating means for rotating the first image according to the amount of inclination acquired by the acquiring means;
Allowing the first image rotated by the rotating means to function as a combining means for combining the second image;
The program is characterized in that the synthesizing unit rotates the first image according to the tilt amount, but synthesizes the second image without rotating.   A computer-readable recording medium on which the program according to claim 13 is recorded.

Images