JP5164327B2 - Imaging apparatus and program - Google Patents

Description

  The present invention relates to a photographing apparatus and a program for guiding and displaying an optimal composition in a photographing target scene.

  Conventionally, when taking a picture, the composition is determined based on the subjectivity of the photographer, and shooting is performed. However, it is difficult for a photographer who has no specialized knowledge regarding composition to obtain a photographed image with a good balance visually.

For example, in Patent Document 1, composition information is extracted from an image and stored in a database, and a subject of an image input from a video camera or an image scanner is converted into a background image based on the composition information stored in the database. Techniques for rearrangement and synthesis are described.
Further, for example, in Patent Document 2, a composition of an image to be photographed is set prior to photographing, and at the time of photographing, a deviation between an image to be photographed and a predetermined composition is determined, and predetermined when there is a deviation. A technique for performing the notification is described.
JP 2000-200434 A JP 2005-51541 A

  However, the technique described in Patent Document 1 obtains an image with a visually balanced composition by combining an image of a subject photographed with a video camera or the like with a background image. Therefore, it is not possible to shoot with an optimal composition with a good balance.

  An object of the present invention is to support a photographer so that a photographer can easily photograph with a visually balanced composition.

In order to solve the above-described problem, the imaging device according to the first aspect of the present invention includes an image acquisition unit that converts an optical image of a shadow target scene into an electrical signal and acquires the image as a captured image, and displays the acquired captured image. And a display control means for displaying on the screen, and for each of a plurality of types of subjects roughly classifying the types of subjects, the various states of the subject are classified into a plurality of types, and the classified various types Corresponding to the state, composition information storage means for storing the arrangement position and size of the subject as composition information, and the captured image acquired by the image acquisition means are analyzed, and are roughly classified in the captured image. Among the types of subjects, a discriminating unit that discriminates the state of the subject at that time in the captured image, and the subject state discriminated by the discriminating unit are the types of the subject stored in the composition information storage unit. The specifying means for specifying which of the various states of the subject in the image and the composition information stored corresponding to the state of the subject specified by the specifying means are read, and the read composition information Guidance means for guiding and displaying the arrangement position and subject size based on the display screen as an optimum composition according to the state of the subject in the kind of subject, and photographing taken by the image obtaining means in response to a photographing instruction From the image, subject state acquisition means for acquiring the subject placement position and size at that time corresponding to the subject state in the captured image, and the subject placement position and size obtained by the subject state acquisition means, And updating means for updating composition information in the composition information storage means corresponding to the state of the subject.

According to the present invention, a photographer can easily perform photographing with an optimal composition with a visually good balance.

Hereinafter, the digital camera 10 according to the embodiment of the present invention will be described in detail.
First, the configuration will be described.
FIG. 1 is a block diagram showing a functional configuration of the digital camera 10. As shown in FIG. 1, a digital camera 10 includes a CPU (Central Processing Unit) 11, an input device 12, a RAM (Random Access Memory) 13, a transmission control unit 14, a display device 15, an imaging device 16, a recording device 17, and the like. Each part and each device are connected by a bus 18.

  The CPU 11 reads out a system program stored in the recording device 17, develops it in a work area formed in the RAM 13, and controls each unit according to the system program. Further, the CPU 11 reads out various processing programs such as a main processing program and a composition determination photographing processing program stored in the recording device 17 and develops them in a work area, and a main processing (to be described later) according to the developed programs. 7), various processes including a composition determination photographing process (see FIG. 8) are executed.

  The input device 12 includes a power key, a shutter key, a cross key for instructing each direction of up, down, left, and right on the display screen to move the cursor position on the display screen of the display device 15. A determination key or the like is provided for indicating and setting the content that is arranged and selected at that time. The input device 12 includes a mode changeover switch for switching the operation mode of the digital camera 10 such as a normal shooting mode, a composition determination shooting mode, an end mode, and a playback mode, and an operation signal corresponding to each key operation or switch operation by the user. Is output to the CPU 11. Note that the shutter key is a two-stage switch in a half-pressed state and a fully-pressed state.

  The RAM 13 forms a work area for temporarily storing various programs executed by the CPU 11 and data related to these programs.

  The transmission control unit 14 is connected to an external electronic device such as a personal computer via a communication cable or the like, and controls transmission / reception of image data and the like. The connection with the external device may be a wireless connection such as infrared or wireless.

  The display device 15 is configured by a monitor such as an LCD (Liquid Crystal Display), and displays an image to be photographed, a photographed image, and the like on a display screen in accordance with an instruction of a display signal input from the CPU 11.

  FIG. 2 is a diagram illustrating a detailed configuration of the imaging device 16. The imaging device 16 has a function as an image acquisition unit that acquires an image data by converting an optical image of a shooting target scene into an electrical signal. Here, the imaging device 16 will be described with reference to FIG.

  An optical image of the scene to be photographed that has passed through the imaging lens 21 is formed on a CCD (Charge Coupled Device) 23 via a diaphragm mechanism 22. The imaging lens 21 and the diaphragm mechanism 22 are moved by the optical system drive unit 24 for focusing and zooming, and the diaphragm amount is controlled so as to achieve appropriate exposure. For the movement of the imaging lens 21 and the diaphragm mechanism 22, the detection value detected by the sensor unit 25 including a distance measuring sensor and a light quantity sensor is output to the CPU 11 via the bus 18, and the CPU 11 calculates based on the detection value. Driving is performed by outputting a signal indicating the amount of movement of the image pickup lens 21 and the amount of aperture of the aperture mechanism 22 to the optical system drive unit 24.

  When an optical image of the scene to be photographed is formed on the CCD 23, charges corresponding to the amount of incident light are accumulated in the CCD 23, and these charges are sequentially read by a drive pulse signal supplied from the drive circuit 26, and the analog processing circuit 27. Is output. The analog processing circuit 27 performs various processes such as color separation, gain adjustment, and white balance, and the processed signal is buffered as digital image data (hereinafter referred to as image data) via the A / D conversion circuit 28. 29.

  The image data stored in the buffer register 29 is converted into a luminance signal and a color difference signal by the signal processing circuit 30 based on a control signal from the CPU 11 and displayed on the display device 15. Further, the image data processed in the signal processing circuit 30 is compressed in the compression / decompression circuit 31 based on a control signal from the CPU 11 and is stored in the photographed image recording area 171 of the recording device 17 shown in FIG. To be recorded.

  Returning to FIG. 1, the recording device 17 includes a non-volatile memory such as a flash memory, and includes a system program corresponding to the digital camera 10, a main processing program that can be executed on the system program, and a composition determination photographing processing program. Various processing programs, application programs, and data processed by these programs are recorded.

   The recording device 17 includes a captured image recording area 171 for recording captured image data, a mode / subject correspondence table 172 (see FIG. 3), a composition DB (Data Base) 173 (see FIG. 4), and a history DB 174. (See FIG. 5).

   As shown in FIG. 3, the mode / subject correspondence table 172 includes a “detailed shooting mode” area and a “type of subject of interest (mainly classified)” area, the detailed shooting mode in the composition determination shooting mode, The classification of the type of the subject of interest when the detailed shooting mode is set is stored in association with each other. The subject of interest is a subject of particular interest in the shooting target scene that is the subject, and is a subject on which a point is placed in the composition among the subjects included in the shooting target scene.

  As shown in FIG. 4, the composition DB 173 has a “target subject type” region, an “arrangement position” region, and a “target subject size” region, and is associated with each target subject type. This is composition information storage means for storing various composition information in advance. Here, the optimal composition is a composition using the golden section.

  FIG. 6 shows the golden section. The golden dividing point is the four points where the diagonal line is drawn from the four corners of the screen and the perpendicular line extends from another corner. The golden dividing composition is a composition in which points are placed on the horizontal / vertical lines connecting the golden dividing points, or It is a composition in which points are placed at golden section points, and a visually balanced image can be obtained. Further, instead of the golden division, a three-division method may be used in which points are placed on lines or intersections obtained by dividing both the vertical and horizontal divisions into three.

  The composition information of the composition DB 173 in the present embodiment mainly includes the center of the subject of interest in any of the left reference line l1, the right reference line l2, the upper reference line l3, and the lower reference line l4 obtained by connecting the golden division points. It is a composition which arrange | positions a point.

For example, information indicating the left reference line 11 as the arrangement position (center position) of the center point of the subject of interest in the “arrangement position” area as composition information according to the case where the type of the subject of interest is person / personal / rightward, Information indicating the upper reference line l3 is stored as the arrangement position (eye position) of the center point of the eye. In addition, the optimal size of the face area (here, the ratio of the face area in the entire image) is stored in the “size of target subject” area. Here, “the size of the subject of interest” is the size of the face area most noticed in the subject of interest, but the size of the entire subject of interest may be stored as composition information.
Further, for example, information indicating the upper reference line l3 as the arrangement position of the center point of the subject of interest is stored in the “arrangement position” area as composition information corresponding to the case where the type of the subject of interest is a set of persons. . Also, an optimal size (here, a ratio (average) of each face area in the entire image) is stored in the “size of subject of interest” area according to the number of face areas.
For example, as the composition information corresponding to the case where the type of the subject of interest is the sea, information indicating the lower reference line 14 as the location of the center point of the subject of interest is stored in the “arrangement position” area. In addition, the size of the sea area (here, the ratio of the sea area to the entire image) is stored in the “size of subject of interest” area.

  As shown in FIG. 5, the history DB 174 has a “type of subject of interest” area, an “arrangement position” area, and a “size of subject of interest” area, and shows the type of subject of interest in the captured image data. This is history information storage means for storing composition information (position of the center point of the subject of interest, size of the subject of interest, etc.) acquired in association with the captured image data.

Next, the operation will be described.
FIG. 7 is a flowchart showing main processing executed by the CPU 11 of the digital camera 10. This process is a process realized by software processing in cooperation with the CPU 11 and the main processing program stored in the recording device 17 when the power is turned on by operating the power key of the input device 12.

  First, the current operation mode is analyzed (step S1). When the current operation mode is the normal shooting mode (step S2; YES), the normal shooting process is executed. The normal shooting mode is a shooting mode in which shooting is performed by processing predetermined as a standard in the digital camera 10.

  In the normal shooting process executed in the normal shooting mode, first, a shooting standby state is entered until the shutter key is fully pressed. In this shooting standby state, the imaging device 16 is controlled to capture image data at predetermined time intervals and display them on the display screen of the display device 15. Hereinafter, displaying an image captured from the imaging device 16 on the display device 15 for shooting reference in the shooting standby state is referred to as finder display.

  In the normal shooting process, when the shutter key is fully pressed, the imaging device 16 is controlled to perform shooting, and image data obtained by shooting is recorded in the shot image recording area 171. Normal shooting processing is executed until mode switching is instructed by operating the mode switch of the input device 12 or the like. When mode switching is instructed (step S4; YES), the processing returns to step S1.

  If it is determined in step S2 that the current operation mode is not the normal shooting mode, it is determined whether or not the current operation mode is the composition determination shooting mode (step S5), and the current operation mode is the composition determination shooting. If it is determined that the mode is selected (step S5; YES), the composition determination photographing process shown in FIG. 8 is executed (step S6). The composition determination photographing process will be described later. Composition determination photographing processing is executed until mode switching is instructed by operating a mode switching switch of the input device 12, and when mode switching is instructed (step S7; YES), the processing returns to step S1.

  If it is determined in step S5 that the current operation mode is not the composition determination shooting mode, it is determined whether or not the operation mode is the end mode, and if the current operation mode is not the end mode ( Step S8; NO), processing according to the current operation mode is executed (step S9). For example, when the current operation mode is the playback mode, a list of images recorded in the recording device 17 is displayed on the display screen, and a captured image selected from the list of images is played back and displayed. When mode switching is instructed by operating the mode switching switch of the input device 12 (step S10; YES), the process returns to step S1.

  In step S8, when it is determined that the current operation mode is the end mode (step S8; YES), this process ends.

  FIG. 8 is a flowchart showing the composition determination photographing process executed by the CPU 11 of the digital camera 10 in step S6 of FIG. This processing is realized by software processing in cooperation with the CPU 11 and the composition determination photographing processing program stored in the recording device 17.

  In the composition-determined shooting process, first, a detailed mode setting screen for setting a detailed shooting mode corresponding to a shooting target scene such as a person shooting mode, a landscape mode, a night view mode, or the like is displayed on the display screen of the display device 15. When the detailed shooting mode is selected and set from the display screen by operating the cross key and the enter key of the input device 12 (step S11), the imaging device 16 is controlled according to the detailed shooting mode, and the predetermined time interval is set. Acquisition of image data is started, and the acquired image is displayed as a finder on the display screen of the display device 15 (step S12).

  Next, when the shutter key is half-pressed and the shutter key is half-pressed (step S13; YES), the image data acquired immediately after the shutter key is pressed from the imaging device 16 is temporarily stored in the RAM 13. (Step S14) Based on the acquired image data, a process for guiding and displaying the optimum composition on the finder display is executed in steps S15 to S19 described below.

  First, based on the detailed shooting mode set in step S11, the type of the subject of interest in the shooting target scene is roughly classified (step S15). Specifically, the mode / subject correspondence table 172 is referred to, and the type of the subject of interest corresponding to the set detailed photographing mode is determined. For example, in the case of the person photographing mode, it is determined that the subject of interest is a person, and in the case of the landscape mode, it is determined that the subject is a landscape.

  Next, the contour extraction of the subject is performed from the image data temporarily stored in the RAM 13 (step S16). As a method for extracting the contour of the subject from the image data, for example, a method of binarizing the luminance value of the image data using a threshold value can be used.

  Next, the image data temporarily stored in the RAM 13 is analyzed according to the type of the subject of interest roughly classified in step S15, and the type of the subject of interest is identified and the subject of interest information (the position of the center point of the subject of interest, The direction of the subject of interest, the size of the subject of interest, etc.) are acquired (step S17). The storage device 17 is provided with an image analysis program for each type of subject of interest (person, landscape,...), And image analysis corresponding to the type of subject of interest roughly classified from the detailed shooting mode. The program is read, and the type of the subject of interest is specified and the subject of interest information is acquired.

  As described above, in the digital camera 10, the mode / subject correspondence table 172 is referred to, and the type of the subject of interest in the shooting target scene is roughly classified according to the currently set detailed shooting mode, and is further roughly classified. The type of the subject of interest is determined by analyzing the image data acquired from the imaging device 16 by the image analysis program corresponding to the type of the subject of interest.

Hereinafter, an image analysis process when the type of the subject of interest is roughly classified as a person will be described as an example.
When the type of the subject of interest is broadly classified as a person, first, color information and shape of each area extracted by contour extraction are analyzed, and a face area having human face characteristics is extracted. For example, a skin color and circular or elliptical area is extracted as a face area. If the extracted face area is one, the type of the subject of interest is subdivided as a person / individual, and if there are a plurality of extracted face regions, the type of the subject of attention is subdivided as a person / collection. The

When the type of the subject of interest is subdivided, a process for specifying the type of the subject of interest is performed according to the type of the subject of interest that has been subdivided, and necessary target subject information (specified) determined in advance according to the subject of interest. The type of the subject of interest, the position of the center point of the subject of interest in the acquired image data, the size of the subject of interest, etc.) are acquired.
For example, when the type of the subject of interest that is subdivided is a person / individual, as shown in FIG. 9, the center point P of the nose is extracted by analyzing the color information and shape in the face area, and the coordinates are used as position information. To be acquired. Next, a width L from the center point P of the nose to the left contour of the face and a width R from the center point P of the nose to the right contour of the face are calculated by, for example, counting the number of pixels. , R is determined to be leftward when the right-side width R is large, and rightward when the left-side width L is large, and the type of the subject of interest is specified as person / individual / rightward. Further, as shown in FIG. 10, the coordinates of the center point Q when the region of the subject of interest is enclosed by a rectangle are calculated, and the coordinates are acquired as position information of the center point of the subject of interest. Further, the size of the face area is calculated by counting the number of pixels of the face area, and the size of the face area, which is the main area at the time of photographing a person, is acquired.
Further, for example, when the type of the subject of interest that is subdivided is a person / collection, the center point of each eye is extracted by analyzing color information and shape in each face area, and the center points of the extracted eyes Are obtained as the center point of the subject of interest.

  When the type of the subject of interest is roughly divided into landscapes, the color information and shape of the contour area extracted by contour extraction are analyzed, and the type of subject of interest (for example, building, mountain, sea, sky,... ) Is identified. The recording device 17 stores in advance feature data such as color information and shape of the image of the subject of interest for each type of subject of interest, and based on the extracted color information and shape in the contour region and the feature data. Thus, the type of the subject of interest is specified. For example, when the extracted contour shape is analyzed and has the characteristic of a linear shape, the type of the subject of interest is identified as a building. In the case of landscapes, unlike person photography, for example, there may be a plurality of subjects that can be used as a subject of interest, such as when a shooting target scene includes mountains and the sea. As described above, when it is impossible to determine which is the target subject, the outline extracted in step S16 is displayed on the screen of the display device 15 and a message prompting the user to specify the target subject is displayed. The photographer may be able to designate the subject of interest by operating the area of the subject of interest displayed above with the cross key and the enter key. When the type of the subject of interest is specified, the information of the subject of interest (information on the type of the subject of interest identified, the position of the center point of the subject of interest, the size of the subject of interest, etc.) is determined according to the type of the subject of interest. Acquisition is performed.

  Returning to FIG. 8, when attention subject information is acquired, composition information corresponding to the type of attention subject included in the acquired attention subject information is retrieved from the composition DB 173 and read (step S <b> 18). Then, the arrangement position of the contour region of the subject of interest is determined based on the read composition information, and the contour extracted in step S16 when the size of the contour region of the subject of interest is different from the size determined by the composition information. The extracted contour is enlarged / reduced so that the size of the contour region of the subject of interest is determined by the composition information, and the contour region of the subject of interest of the size corresponding to the composition information is displayed on the finder display of the display device 15. By arranging the extracted contours so as to be arranged at the determined arrangement position on the obtained image, a composition corresponding to the type of the subject of interest is guided and displayed (step S19). Note that the contour to be displayed for guidance only needs to include the contour of the subject of interest, and may be the entire extraction in step S16 or only the contour of the subject of interest.

  FIG. 11 shows an example of a screen displayed as a guide on the finder display when the type of the subject of interest is person / individual / rightward. FIG. 12 shows an example of a screen displayed as a guide on the finder display when the type of the subject of interest is a person / group. FIG. 13 shows an example of a screen displayed as a guide on the finder display when the type of the subject of interest is the sea. In FIG. 11 to FIG. 13, the position and size of the subject of interest in the optimum composition are guided and displayed by a two-dot chain line.

  The photographer determines the composition with reference to the contour of the subject of interest in the optimal composition superimposed on the viewfinder display screen. If you want to achieve the optimal composition recommended for the digital camera 10, you can move the digital camera 10 or adjust the shooting magnification by zooming so that the subject of interest displayed in the viewfinder matches the contour displayed on the guide. Let

  Returning to FIG. 8, when the automatic zoom is instructed by the operation of the input device 12 (step S20; YES), the size of the outline area of the noticed subject displayed in guidance and the size of the outline area of the noticeable subject extracted in step S16. The imaging magnification is calculated based on the above, and the optical system driving unit 24 is driven to move the lens so that the calculated imaging magnification is obtained, and the imaging magnification is adjusted (step S21). If the automatic zoom is not instructed (step S20; NO), the optical system driving unit 24 is driven according to the input of the input device 12 to move the lens (step S22). Then, the full depression of the shutter key is awaited (step S23).

  When the shutter key is fully pressed (step S23; YES), the imaging device 16 is controlled based on the set detailed imaging mode to perform imaging, and image data acquired by imaging is stored in the captured image recording area 171. In addition to being recorded (step S24), the contour of the subject of interest is extracted from the image data acquired by photographing, and whether or not the extracted contour region of the subject of interest matches the contour region of the subject of interest displayed in the guidance display. If it is determined that they match (step S25; YES), that is, if the photographing is performed according to the contour of the guided optimum composition, this processing ends. On the other hand, when it is determined that the extracted contour area of the target subject does not match the contour area of the target subject displayed in the guidance (step S25; NO), composition information (arrangement of the center point of the target subject) in the photographed image The position and the size of the subject of interest are stored in the history DB 174 (step S26). Then, the composition information read in step S18 and the composition information in the image photographed this time in the composition DB 173, that is, the average (average) of the arrangement position of the center of the subject of interest and the size of the subject of interest are calculated. The composition information in the composition DB 173 is updated based on the calculated content (step S27), and this process ends.

  As described above, the digital camera 10 has the composition DB 173 in which optimum composition information corresponding to the type of the subject of interest is stored in advance, and the image data is acquired from the image data acquired by the imaging device 16. The type of the subject of interest in the scene to be photographed is determined, composition information corresponding to the determined type of the subject of interest is read from the composition DB 173, and the arrangement position of the subject of interest is guided to the display device 15 based on the read composition information. indicate.

  Accordingly, the composition according to the type of the subject of interest can be guided and displayed to the photographer, so that the photographer can easily shoot with an optimal composition with a good visual balance.

  In addition, since the position of the subject of interest is guided and displayed by arranging the contour extracted from the image data acquired from the image data 16 at the position determined by the composition information corresponding to the subject of interest, It is possible to easily grasp the optimum arrangement position of the subject to be performed.

  In addition, the contour of the subject of interest is enlarged or reduced to a size determined by the composition information corresponding to the type of the subject of interest, and this enlarged or reduced contour is arranged at a position determined by the composition information corresponding to the subject of interest. Thus, since the guidance is displayed on the display means, the photographer can easily grasp the optimum arrangement position and size of the subject of interest.

  In addition, the shooting magnification is automatically adjusted so that the size of the subject of interest in the shot image becomes the size determined by the composition information, so that the photographer can easily shoot with the optimal composition that is visually balanced. Can be done.

  Further, composition information is acquired from an image taken by the photographer and stored in the history DB 174, and the composition DB 173 is updated based on the composition information when the photographer actually photographed, so that the photographer's preference is reflected. It is possible to display guidance.

  In addition, the description content in the said embodiment is a suitable example of the digital camera 10 which concerns on this invention, and is not limited to this.

  For example, in the above-described embodiment, the composition information in the composition DB 173 is updated with the composition information acquired from the captured image data, thereby reflecting the photographer's preference in the composition guidance display. However, the present invention is not limited to this. For example, the photographer can select whether to use the composition DB 173 or the history DB 174 for composition guidance display, and based on the composition information stored in the DB selected by the photographer. The guidance display may be performed.

  The guidance display is not limited to being performed on the display screen. For example, when the digital camera 10 has a finder, the finder may be used as a transmissive display device, and the guidance display may be displayed overlaid on the photographic subject scene that appears to be transparent.

  In addition, the detailed configuration and detailed operation of the digital camera 10 can be changed as appropriate without departing from the spirit of the present invention.

1 is a block diagram showing a functional configuration of a digital camera 10 according to the present invention. It is a figure which shows the detailed structure of the imaging device 16 of FIG. FIG. 8 is a diagram illustrating an example of data storage in a mode / subject correspondence table 172 in FIG. 1. It is a figure which shows the example of data storage of composition DB173 of FIG. It is a figure which shows the example of data storage of log | history DB174 of FIG. It is a figure for demonstrating golden division. It is a flowchart which shows the main process performed by CPU11 of FIG. It is a flowchart which shows the composition determination imaging | photography process performed by CPU11 of FIG. It is a figure which shows an example of the determination method of the direction of an attention object. It is a figure which shows an example of the determination method of the center point of an attention object. It is a figure which shows the example of a screen displayed as guidance on a finder display when the kind of attention object is person / individual / right direction. It is a figure which shows the example of a screen displayed by guidance on a finder display, when the kind of attention object is a person / collection. It is a figure which shows the example of a screen displayed as guidance on a finder display when the kind of attention object is the sea.

Explanation of symbols

10 Digital camera 11 CPU
12 Input device 13 RAM
14 Transmission Control Unit 15 Display Device 16 Imaging Device 17 Recording Device 171 Captured Image Recording Area 172 Mode / Subject Correspondence Table 173 Composition DB
174 History DB
18 Bus 21 Imaging lens 22 Aperture mechanism 23 CCD
24 optical system drive unit 25 sensor unit 26 drive circuit 27 analog processing circuit 28 A / D conversion circuit 29 buffer register 30 signal processing circuit 31 compression / decompression circuit

Claims (5)

An imaging apparatus comprising: an image acquisition unit that converts an optical image of a shooting target scene into an electrical signal and acquires the image as a captured image; and a display control unit that displays the acquired captured image on a display screen,
For each type of subject that roughly classifies the subject type, various states of the subject are classified into a plurality of types, and the arrangement position and size of the subject are stored as composition information corresponding to the classified states. Composition information storage means for
A discriminating unit that analyzes the captured image acquired by the image acquiring unit and determines the state of the subject at that time in the captured image among the types of subjects roughly classified in the captured image;
A specifying means for specifying which of the various states of the subject among the types of the subjects stored in the composition information storage means the state of the subject determined by the determination means;
The composition information stored in correspondence with the state of the subject specified by the specifying means is read, and the arrangement position and the subject size based on the read composition information are determined according to the state of the subject in the type of the subject. Guidance means for displaying guidance on the display screen as an optimal composition;
Subject state acquisition means for acquiring from the captured image taken by the image acquisition means in response to a shooting instruction, the arrangement position and size of the subject at that time, corresponding to the state of the subject in the captured image;
Updating means for updating composition information in the composition information storage means corresponding to the state of the subject based on the arrangement position and size of the subject obtained by the subject state obtaining means;
An imaging apparatus comprising: The discriminating means discriminates the state of the subject by discriminating in which direction the subject roughly classified by subject type is facing or whether the number of subjects is singular. The photographing apparatus according to claim 1 . Comprising extraction means for extracting the contour of the subject from the photographed image acquired by the image acquisition means;
The guide means arranges the contour extracted by the extraction means at an arrangement position based on the read composition information, enlarges or reduces the outline to a subject size based on the composition information, and enlarges or reduces the outline. has been a guiding display on said display screen contour, that imaging apparatus according to claim 1 or 2, characterized in. Magnification adjusting means for adjusting a photographing magnification in the photographing apparatus so that the size of the subject included in the photographed image obtained by the image obtaining means is a size based on the composition information. The imaging device according to any one of claims 1 to 3 . Controlling a computer of an imaging apparatus comprising: an image acquisition unit that converts an optical image of a scene to be captured into an electrical signal and acquires the image as a captured image; and a display control unit that displays the acquired captured image on a display screen A program for
The computer,
For each type of subject that roughly classifies the subject type, various states of the subject are classified into a plurality of types, and the arrangement position and size of the subject are stored as composition information corresponding to the classified states. Composition information storage means,
A discriminating unit that analyzes the captured image acquired by the image acquiring unit and discriminates the state of the subject at that time in the captured image among the types of subjects roughly classified in the captured image;
A specifying unit for specifying which of the various states of the subject among the types of the subject stored in the composition information storage unit corresponds to the state of the subject determined by the determining unit;
The composition information stored in correspondence with the state of the subject specified by the specifying means is read, and the arrangement position and the subject size based on the read composition information are determined according to the state of the subject in the type of the subject. Guidance means for displaying guidance on the display screen as an optimal composition;
Subject state acquisition means for acquiring from the captured image captured by the image acquisition means in response to a shooting instruction, the arrangement position and size of the subject at that time, corresponding to the state of the subject in the captured image;
Updating means for updating composition information in the composition information storage means corresponding to the state of the subject based on the arrangement position and size of the subject acquired by the subject state acquisition means;
A computer-readable program designed to function as a computer.

Images