JP2014103547A - Electronic camera - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance convenience related to image pik-up setting.SOLUTION: An imager 16 outputs raw image data corresponding to an optical image captured on the imaging surface repeatedly. A polarization filter unit 50 is mounted on a lens barrel projecting in front of the imaging surface. When a polarization filter mode is selected, a CPU defines a desired area of the imaging surface according to the user operation, and detects the brightness of an area thus defined based on the raw image data outputted from an imager 16. Furthermore, the CPU turns a polarization filter 52 about the optical axis, in parallel with brightness detection, and adjusts the turning angle of the polarization filter 52 so that the brightness detected satisfies predetermined conditions.

Description

  The present invention relates to an electronic camera, and more particularly to an electronic camera that adjusts imaging settings based on an electronic image output from an imager.

  An example of this type of camera is disclosed in Patent Document 1. According to this background art, an image representing a scene captured by the imaging optical system is displayed on the viewfinder. When a region to be focused is designated on the viewfinder screen, focusing is performed by paying attention to images belonging to the designated region.

JP-A-1-174176

  However, in the background art, setting items that are adjusted with reference to user operations remain in focus, and thus there is a limit to convenience regarding adjustment of imaging settings.

  Therefore, a main object of the present invention is to provide an electronic camera that can enhance convenience related to adjustment of imaging settings.

  An electronic camera according to the present invention (10: reference numeral corresponding to the embodiment; the same applies hereinafter) is arranged in front of the imaging surface, the imaging means (16) for repeatedly outputting an electronic image corresponding to the optical image captured on the imaging surface. Polarization filter (52), definition means (S31 to S33) for defining a desired area on the imaging surface according to a user operation, partial image corresponding to the area defined by the definition means among the electronic images output from the imaging means Detecting means (S37 to S39) for detecting the brightness of the light, rotating means (S35, S41 to S45) for rotating the polarizing filter around the optical axis in parallel with the processing of the detecting means, and detecting the rotation angle of the polarizing filter Adjusting means (S47 to S51) for adjusting the brightness detected by the means to an angle satisfying the condition is provided.

  Preferably, there is further provided display means (S1) for displaying a moving image based on the electronic image output from the imaging means on the monitor screen in real time, and the user operation corresponds to an operation referring to the moving image displayed by the display means. To do.

  More preferably, a touch panel (42) covering the monitor screen is further provided, and the user operation includes a touch operation on the touch panel.

  Preferably, receiving means (S25) for receiving a filter effect setting operation is further provided, and the condition noted by the adjusting means includes a condition that the brightness indicates a value according to the filter effect setting operation.

  Preferably, support means (BRL) for supporting the polarization filter is further provided, and the support means supports the polarization filter so as to be detachable from the apparatus.

  An imaging control program according to the present invention includes an imaging unit (16) that repeatedly outputs an electronic image corresponding to an optical image captured on an imaging surface, and an electronic camera including a polarization filter (52) disposed in front of the imaging surface ( A definition step (S31 to S33) for defining a desired area on the imaging surface in accordance with a user operation in the processor (26) of 10), a portion corresponding to the area defined by the definition step in the electronic image output from the imaging means Detection step (S37 to S39) for detecting the brightness of the image, rotation step (S35, S41 to S45) for rotating the polarizing filter around the optical axis in parallel with the processing of the detecting step, and the rotation angle of the polarizing filter It is an imaging control program for executing an adjustment step (S47 to S51) in which the brightness detected by the detection step is adjusted to an angle that satisfies a condition.

  An imaging control method according to the present invention includes an imaging device (16) that repeatedly outputs an electronic image corresponding to an optical image captured on an imaging surface, and an electronic camera including a polarization filter (52) disposed in front of the imaging surface ( The imaging control method executed by 10), wherein a definition step (S31 to S33) for defining a desired region on the imaging surface in accordance with a user operation, and a region defined by the definition step among electronic images output from the imaging means Detection step (S37 to S39) for detecting the brightness of the partial image corresponding to the above, a rotation step (S35, S41 to S45) for rotating the polarizing filter around the optical axis in parallel with the processing of the detection step, and the polarizing filter Adjustment steps (S47 to S51) for adjusting the rotation angle to an angle at which the brightness detected by the detection step satisfies the condition.

  An external control program according to the present invention includes an imaging unit (16) that repeatedly outputs an electronic image corresponding to an optical image captured on an imaging surface, a polarization filter (52) disposed in front of the imaging surface, and a memory (48). An external control program supplied to the electronic camera (10) that includes a processor (26) that executes processing according to the internal control program stored in the computer, and that defines a desired area on the imaging surface according to a user operation (S31) ~ S33), a detection step (S37 to S39) for detecting the brightness of the partial image corresponding to the region defined by the definition step in the electronic image output from the imaging means, and a polarization filter in parallel with the processing of the detection step. A rotation step (S35, S41 to S45) for rotating the optical filter around the optical axis and adjusting the rotation angle of the polarizing filter to an angle at which the brightness detected by the detection step satisfies the condition. This is an external control program for causing the processor to execute the adjustment steps (S47 to S51) in cooperation with the internal control program.

  An electronic camera (10) according to the present invention includes an imaging means (16) that repeatedly outputs an electronic image corresponding to an optical image captured on an imaging surface, a polarizing filter (52) disposed in front of the imaging surface, and an external control program An electronic camera comprising a fetching means (60) for fetching and a processor (26) for executing processing according to an external control program fetched by the fetching means and an internal control program stored in a memory (48). The program detects the brightness of the partial image corresponding to the area defined by the definition step in the definition step (S31 to S33) that defines the desired area on the imaging surface according to the user operation, and the electronic image output from the imaging means Detection steps (S37 to S39), a rotation step (S35, S41 to S45) for rotating the polarizing filter around the optical axis in parallel with the processing of the detection step, and a polarization filter Adjustment step rotation angle brightness detected by the detecting step of the motor is adjusted to an angle that satisfies the condition (S47 ~ S51) corresponds to the internal control program in cooperation with a program to be executed.

  According to the present invention, the polarizing filter disposed in front of the imaging surface is rotated in the direction around the optical axis in parallel with the process of detecting the brightness of the partial image corresponding to the region designated by the user operation, and is detected. The brightness is adjusted to a rotation angle that satisfies the condition. This reduces the trouble of adjusting the rotation angle of the polarizing filter when shooting using the polarizing filter, and improves the convenience regarding the imaging setting.

  The above object, other objects, features and advantages of the present invention will become more apparent from the following detailed description of embodiments with reference to the drawings.

It is a block diagram which shows the basic composition of one Example of this invention. It is a block diagram which shows the structure of one Example of this invention. FIG. 3 is an illustrative view showing one example of a mapping state of an SDRAM applied to the embodiment in FIG. 2; It is an illustration figure which shows an example of the allocation state of the evaluation area in an imaging surface. It is an illustration figure which shows an example of the front surface of a camera housing | casing. It is a perspective view which shows an example of the external appearance of an external polarizing filter unit. (A) is an illustration figure which shows an example of the side surface of the camera housing | casing before mounting | wearing with a polarizing filter unit, (B) is an illustration figure which shows an example of the side surface of a camera housing | casing after mounting | wearing with a polarizing filter unit. is there. It is a block diagram which shows an example of a structure of a polarizing filter unit, and a structure of an imaging optical system. It is an illustration figure which shows an example of the setting menu displayed on the monitor screen. It is an illustration figure which shows an example of the through image displayed on the monitor screen. It is an illustration figure which shows an example of the reference area allocated to the evaluation area. FIG. 3 is an illustrative view showing one example of a configuration of a register applied to the embodiment in FIG. 2; (A) is an illustrative view showing another example of the through image displayed on the monitor screen, and (B) is an illustrative view showing another example of the through image displayed on the monitor screen. It is a flowchart which shows a part of operation | movement of CPU applied to the FIG. 2 Example. It is a flowchart which shows a part of other operation | movement of CPU applied to the FIG. 2 Example. FIG. 11 is a flowchart showing still another portion of behavior of the CPU applied to the embodiment in FIG. 2; It is a block diagram which shows the structure of the other Example of this invention.

Embodiments of the present invention will be described below with reference to the drawings.
[Basic configuration]

  Referring to FIG. 1, the electronic camera of this embodiment is basically configured as follows. The imaging unit 1 repeatedly outputs an electronic image corresponding to the optical image captured on the imaging surface. The polarizing filter 2 is disposed in front of the imaging surface. The defining means 3 defines a desired area on the imaging surface according to a user operation. The detection unit 4 detects the brightness of the partial image corresponding to the area defined by the definition unit 3 in the electronic image output from the imaging unit 1. The rotating means 5 rotates the polarizing filter 2 in the direction around the optical axis in parallel with the processing of the detecting means 4. The adjusting unit 6 adjusts the rotation angle of the polarizing filter 2 so that the brightness detected by the detecting unit 4 satisfies the condition.

The polarization filter 2 disposed in front of the imaging surface is rotated in the direction around the optical axis in parallel with the process of detecting the brightness of the partial image corresponding to the region designated by the user operation, and the detected brightness is The rotation angle is adjusted to satisfy the conditions. Thereby, the trouble of adjusting the rotation angle of the polarizing filter 2 when performing photographing using the polarizing filter 2 is reduced, and convenience related to imaging setting is improved.
[Example]

  Referring to FIG. 2, the digital camera 10 of this embodiment includes a focus lens 12 and an aperture unit 14 driven by drivers 18a and 18b, respectively. The optical image that has passed through these members is irradiated onto the imaging surface of the imager 16 and subjected to photoelectric conversion. Thereby, a charge corresponding to the optical image is generated.

  When the power is turned on, the CPU 26 instructs the driver 18c to repeat the exposure operation and the charge reading operation in order to execute the moving image capturing process. In response to a vertical synchronization signal Vsync periodically generated from an SG (Signal Generator) (not shown), the driver 18c exposes the imaging surface and reads out the charges generated on the imaging surface in a raster scanning manner. From the imager 16, raw image data based on the read charges is periodically output.

  The preprocessing circuit 20 performs processing such as digital clamping, pixel defect correction, and gain control on the raw image data output from the imager 16. The raw image data subjected to these processes is written into the raw image area 32a (see FIG. 3) of the SDRAM 32 through the memory control circuit 30.

  The post-processing circuit 34 reads the raw image data stored in the raw image area 32a through the memory control circuit 30, and performs color separation processing, white balance adjustment processing, and YUV conversion processing on the read raw image data. The YUV format image data thus generated is written into the YUV image area 32b (see FIG. 3) of the SDRAM 32 by the memory control circuit 30.

  The LCD driver 36 repeatedly reads out the image data stored in the YUV image area 32b through the memory control circuit 30, and drives the LCD monitor 40 based on the read image data. As a result, a real-time moving image (through image) representing the scene captured on the imaging surface is displayed on the monitor screen.

  Referring to FIG. 4, an evaluation area EVA is assigned to the center of the imaging surface. The evaluation area EVA is divided into 16 in each of the horizontal direction and the vertical direction, and 256 divided areas form the evaluation area EVA. In addition to the above-described processing, the preprocessing circuit 20 shown in FIG. 2 executes simple RGB conversion processing that simply converts raw image data into RGB data.

  The AE evaluation circuit 22 integrates RGB data belonging to the evaluation area EVA among the RGB data generated by the preprocessing circuit 20 every time the vertical synchronization signal Vsync is generated. As a result, 256 integral values, that is, 256 AE evaluation values, are output from the AE evaluation circuit 22 in response to the vertical synchronization signal Vsync. The AF evaluation circuit 24 integrates the high-frequency components of the RGB data belonging to the evaluation area EVA among the RGB data generated by the preprocessing circuit 20 every time the vertical synchronization signal Vsync is generated. As a result, 256 integral values, that is, 256 AF evaluation values, are output from the AF evaluation circuit 24 in response to the vertical synchronization signal Vsync.

  When the shutter button 28sh provided in the key input device 28 is in a non-operating state, the CPU 26 executes a simple AE process based on the 256 AE evaluation values output from the AE evaluation circuit 22, and sets an appropriate EV value. calculate. The aperture amount and exposure time that define the calculated appropriate EV value are set in the drivers 18b and 18c, whereby the brightness of the through image is roughly adjusted.

  When the shutter button 28sh is half-pressed by the user, the CPU 26 executes a strict AE process with reference to 256 AE evaluation values output from the AE evaluation circuit 22, and calculates an optimum EV value. The aperture amount and exposure time that define the calculated optimum EV value are also set in the drivers 18b and 18c. Thereby, the brightness of the through image is adjusted strictly.

  The CPU 26 also executes AF processing based on the 256 AF evaluation values output from the AF evaluation circuit 24. The focus lens 12 is moved in the optical axis direction by the driver 18a in order to search for a focal point, and is arranged at the focal point found by this. As a result, the sharpness of the through image is improved.

  When the shutter button 28sh is fully pressed, the CPU 26 executes a still image capturing process. As a result, one frame of image data representing the scene at the time when the shutter button 28sh is fully pressed is saved from the YUV image area 32b to the still image area 32c (see FIG. 3). Subsequently, the CPU 26 commands the memory I / F 40 to execute the recording process. The memory I / F 40 reads one frame of image data stored in the still image area 32c through the memory control circuit 30, and records the read image data on the recording medium 42 in a file format.

  Referring to FIG. 5, a lens barrel BRL having a focus lens 12 and protruding in front of the camera housing CHS is provided on the front surface of the camera housing CHS. Referring to FIG. 6, the polarizing filter unit 50 is formed by a disk-shaped polarizing filter 52 and a ring-shaped outer frame 54. The polarizing filter 52 has an outer diameter that is larger than the inner diameter of the outer frame 54 and smaller than the outer diameter of the outer frame 54, and the outer peripheral edge of the polarizing filter 52 is fitted to the inner peripheral edge of the outer frame 54. The fitted polarizing filter 52 is slidable along the inner peripheral edge of the outer frame 54.

  Further, the inner diameter of the outer frame 54 is slightly smaller than the outer diameter of the lens barrel BRL, and the polarizing filter unit 50 is detachably attached to the lens barrel BRL as shown in FIGS. 7 (A) to 7 (B). . At the time of mounting, one main surface of the polarizing filter 52 faces the front of the camera housing CHS, and the other main surface of the polarizing filter 52 faces the focus lens 12. A part of the light whose electric and magnetic fields vibrate only in a specific direction is attenuated by the polarization filter unit 50 thus mounted.

  Referring to FIG. 8, the polarization filter unit 50 further includes a driver 56 connected to the control terminal T1. When a command issued from the CPU 26 is given through the control terminal T <b> 1, the driver 56 slides the polarizing filter 52 along the inner peripheral edge of the outer frame 54. When mounted on the lens barrel BRL, the polarizing filter 52 rotates in the direction around the optical axis, and the amount of light incident on the focus lens 12 changes as the polarizing filter 52 rotates.

  When the polarization filter mode is selected by the mode switching button 28 md on the key input device 28 with the polarization filter unit 50 mounted on the lens barrel BRL, the CPU 26 instructs the character generator 38 to display a setting menu. The character generator 38 gives character data representing a setting menu to the LCD driver 36, and the LCD driver 36 drives the LCD monitor 40 based on the given character data.

  As a result, the setting menu is displayed on the monitor screen as shown in FIG. According to FIG. 9, the title of “filter effect” is displayed at the upper left of the monitor screen, and two items “higher” and “lower” are displayed at the center of the monitor screen.

  The user's touch operation on the monitor screen is detected by the touch panel 42 covering the monitor screen. That is, when the touch panel 42 is touched, the coordinate value on the touched monitor screen is given from the touch panel 42 to the CPU 26.

  When a desired item on the setting menu is selected by a touch operation, the CPU 26 sets an effect corresponding to the selected item (that is, “higher” or “lower”) as a desired filter effect, and then sets it. Command the character generator 38 to hide the menu. The character generator 38 stops outputting the character data, and the setting menu disappears from the monitor screen. Subsequently, when a desired area on the monitor screen is designated by a user's touch operation, an area overlapping with the evaluation area EVA is defined as a reference area among the designated areas.

  When the through image representing the mountain MT and the lake LK is displayed on the monitor screen in the manner shown in FIG. 10, when the lake LK is designated by a touch operation, the reference region is defined as shown in FIG.

  The CPU 26 controls the driver 56 to rotate the polarizing filter 54 by 5 degrees, and acquires a part of the AE evaluation values belonging to the reference area from the AE evaluation circuit 22 in parallel with the rotation operation of the polarizing filter 54. The total sum of the acquired AE evaluation values is calculated as total luminance, and the calculated total luminance is registered in the register RGST shown in FIG. Specifically, the calculated total luminance is described in a column corresponding to the rotation angle of the polarizing filter 54 at the time when the AE evaluation value is acquired.

  When the polarization filter 52 rotates once, the CPU 26 detects the total luminance corresponding to the filter effect set by the touch operation from the register RGST. If the set filter effect is “high”, the total luminance indicating the minimum value is detected. On the other hand, if the set filter effect is “lower”, the total luminance closest to the intermediate value (= (maximum value + minimum value) / 2) is detected. The CPU 26 specifies the rotation angle corresponding to the total luminance thus detected with reference to the register RGST, and instructs the driver 56 to adjust to the specified rotation angle. The driver 56 adjusts the rotation angle of the polarizing filter 52 to a rotation angle according to the command.

  After the rotation angle is adjusted, the through image is displayed as shown in FIG. 13A corresponding to the “higher” filter effect, and shown in FIG. 13B corresponding to the “lower” filter effect. Displayed as shown. As can be seen by comparing the two, the degree to which the mountain MT is reflected in the lake LK differs depending on the set filter effect.

  The CPU 26 executes a plurality of tasks including the imaging task shown in FIG. 14 and the setting control task shown in FIGS. 15 to 16 in parallel under the control of the multitask OS. Note that control programs corresponding to these tasks are stored in the flash memory 48.

  Referring to FIG. 14, in step S1, a moving image capturing process is executed. As a result, a through image representing a scene captured on the imaging surface is displayed on the LCD monitor 40. In step S3, it is determined whether or not the shutter button 28sh is half-pressed. As long as the determination result is NO, the simple AE process is repeatedly executed in step S5. As a result, the brightness of the through image is roughly adjusted.

  When the determination result in step S3 is updated from NO to YES, the strict AE process is executed in step S7, and the AF process is executed in step S9. The brightness of the through image is strictly adjusted by the strict AE process, and the sharpness of the through image is improved by the AF process.

  In step S11, it is determined whether or not the shutter button 28sh has been fully pressed. In step S13, it is determined whether or not the operation of the shutter button 28sh has been released. If “YES” in the step S13, the process returns to the step S3 as it is, and if “YES” in the step S11, the process returns to the step S3 through steps S15 to S17.

  In step S15, the still image capturing process is executed, and in step S17, the memory I / F 44 is instructed to execute the recording process. As a result of the still image capturing process, one frame of image data representing the scene at the time when the shutter button 28sh is fully pressed is saved from the YUV image area 32b to the still image area 32c. The memory I / F 40 instructed to execute the recording process reads out one frame of image data stored in the still image area 32c through the memory control circuit 30, and records the read image data on the recording medium 42 in a file format. To do.

  Referring to FIG. 15, in step S21, it is repeatedly determined whether or not the polarization filter mode has been selected by operating the mode switching button 28md. When the determination result is updated from NO to YES, the process proceeds to step S23 to instruct the character generator 38 to display the setting menu. The character generator 38 outputs character data representing a setting menu, whereby the setting menu is displayed on the monitor screen.

  In step S25, it is determined based on the output of the touch panel 42 whether a desired item on the setting menu has been selected by a touch operation. When the determination result is updated from NO to YES, the process proceeds to step S27, and an effect corresponding to the selected item is set as a desired filter effect. When the setting is completed, the character generator 38 is instructed to hide the setting menu. The character generator 38 stops outputting the character data, and the setting menu disappears from the monitor screen.

  In step S31, it is determined based on the output of the touch panel 42 whether or not a touch operation for designating an area has been performed. When the determination result is updated from NO to YES, the process proceeds to step S33, and among the areas specified by the touch operation, an area overlapping with the evaluation area EVA is defined as a reference area. When the definition of the reference area is completed, the angle θf is set to 0 ° in step S35.

  In step S37, some AE evaluation values belonging to the reference area among the 256 AE evaluation values output from the AE evaluation circuit 22 are acquired. In step S39, the sum total of the acquired AE evaluation values is calculated as the total luminance, and the calculated total luminance is registered in the register RGST. The total luminance is described in a column corresponding to the current value of the angle θf.

  In step S41, it is determined whether or not the angle θf has reached 360 ° (= whether or not the polarizing filter 52 has made one rotation). If the determination result is NO, the process proceeds to step S43, and if the determination result is YES, the process proceeds to step S47.

  In step S43, a corresponding command is given to the driver 56 to rotate the polarizing filter 52 by an angle Δθf (= 5 °). The driver 56 rotates the polarizing filter 52 according to the command. When the rotation is completed, the angle Δθf is added to the angle θf in step S45, and then the process returns to step S37.

  In step S47, the total luminance corresponding to the filter effect set in step S27 is detected from the register RGST. In step S49, the value of the angle θf corresponding to the detected total luminance is specified with reference to the register RGST. In step S51, the driver 56 is instructed to adjust the angle corresponding to the specified value. The driver 56 adjusts the rotation angle of the polarizing filter 52 to an angle according to the command. When the adjustment is completed, the process returns to step S21.

  As can be seen from the above description, the imager 16 repeatedly outputs raw image data corresponding to the optical image captured on the imaging surface. The polarizing filter unit 50 is attached to a lens barrel BRL that projects forward of the imaging surface. When the polarization filter mode is selected, the CPU 26 defines a desired area on the imaging surface according to a user operation (S31 to S33), and the brightness of the defined area is based on the raw image data output from the imager 16. Detect (S37 to S39). The CPU 26 also rotates the polarizing filter 52 forming the polarizing filter unit 50 in the direction around the optical axis in parallel with the brightness detection processing (S35, S41 to S45), and the detected brightness of the rotation angle of the polarizing filter 52 is detected. Is adjusted to an angle satisfying the predetermined condition (S47 to S51).

  Thereby, the trouble of adjusting the rotation angle of the polarizing filter 52 when performing photographing using the polarizing filter unit 50 is reduced, and convenience related to imaging setting is improved.

  In this embodiment, the evaluation area EVA is divided into 256 parts, but the number of divisions is not limited to “256”. In this embodiment, an external polarizing filter unit is assumed, but the polarizing filter may be built in the camera.

  Further, in this embodiment, a multitask OS and a control program corresponding to a plurality of tasks executed thereby are stored in the flash memory 44 in advance. However, as shown in FIG. 17, a communication I / F 60 is provided in the digital camera 10 and some control programs are prepared in the flash memory 48 from the beginning as internal control programs, while other control programs are prepared as external control programs. May be acquired from an external server. In this case, the above-described operation is realized by cooperation of the internal control program and the external control program.

  In this embodiment, the process executed by the CPU 26 is divided into a plurality of tasks as described above. However, each task may be further divided into a plurality of small tasks, and a part of the divided plurality of small tasks may be integrated with other tasks. Further, when each task is divided into a plurality of small tasks, all or part of the tasks may be acquired from an external server.

DESCRIPTION OF SYMBOLS 10 ... Digital camera 16 ... Imager 22 ... AE evaluation circuit 24 ... AF evaluation circuit 26 ... CPU
32 ... SDRAM
38 ... Character generator 40 ... LCD monitor 42 ... Touch panel

Claims (9)

Imaging means for repeatedly outputting an electronic image corresponding to the optical image captured on the imaging surface;
A polarizing filter disposed in front of the imaging surface;
Defining means for defining a desired area of the imaging surface according to a user operation;
Detecting means for detecting brightness of a partial image corresponding to an area defined by the defining means in the electronic image output from the imaging means;
Rotating means for rotating the polarizing filter in the direction around the optical axis in parallel with the processing of the detecting means, and adjustment for adjusting the rotation angle of the polarizing filter to an angle at which the brightness detected by the detecting means satisfies the condition An electronic camera comprising means. A display unit for displaying a moving image based on the electronic image output from the imaging unit on a monitor screen in real time;
The electronic camera according to claim 1, wherein the user operation corresponds to an operation with reference to a moving image displayed by the display unit. A touch panel covering the monitor screen;
The electronic camera according to claim 2, wherein the user operation includes a touch operation on the touch panel. A receiving means for receiving a filter effect setting operation;
The electronic camera according to claim 1, wherein the condition noted by the adjusting unit includes a condition that the brightness indicates a value according to the filter effect setting operation. Further comprising support means for supporting the polarizing filter;
5. The electronic camera according to claim 1, wherein the support means detachably supports the polarizing filter with respect to the apparatus. In an imaging device that repeatedly outputs an electronic image corresponding to an optical image captured on an imaging surface, and a processor of an electronic camera including a polarizing filter disposed in front of the imaging surface,
A defining step of defining a desired area of the imaging surface according to a user operation;
A detection step of detecting brightness of a partial image corresponding to a region defined by the definition step in the electronic image output from the imaging unit;
A rotation step of rotating the polarizing filter in a direction around the optical axis in parallel with the processing of the detection step; and an adjustment for adjusting a rotation angle of the polarizing filter to an angle at which the brightness detected by the detection step satisfies a condition An imaging control program for executing steps. An imaging control method executed by an electronic camera including an imaging unit that repeatedly outputs an electronic image corresponding to an optical image captured on an imaging surface, and a polarization filter disposed in front of the imaging surface,
A defining step of defining a desired area of the imaging surface according to a user operation;
A detection step of detecting brightness of a partial image corresponding to a region defined by the definition step in the electronic image output from the imaging unit;
A rotation step of rotating the polarizing filter in a direction around the optical axis in parallel with the processing of the detection step; and an adjustment for adjusting a rotation angle of the polarizing filter to an angle at which the brightness detected by the detection step satisfies a condition An imaging control method comprising steps. Imaging means for repeatedly outputting an electronic image corresponding to the optical image captured on the imaging surface;
An external control program supplied to an electronic camera comprising a polarizing filter disposed in front of the imaging surface, and a processor that executes processing according to an internal control program stored in a memory,
A defining step of defining a desired area of the imaging surface according to a user operation;
A detection step of detecting brightness of a partial image corresponding to a region defined by the definition step in the electronic image output from the imaging unit;
A rotation step of rotating the polarizing filter in a direction around the optical axis in parallel with the processing of the detection step; and an adjustment for adjusting a rotation angle of the polarizing filter to an angle at which the brightness detected by the detection step satisfies a condition An external control program for causing the processor to execute steps in cooperation with the internal control program. Imaging means for repeatedly outputting an electronic image corresponding to the optical image captured on the imaging surface;
A polarizing filter disposed in front of the imaging surface;
An electronic camera comprising a capturing unit that captures an external control program, and a processor that executes processing according to the external control program captured by the capturing unit and the internal control program stored in a memory,
The external control program is
A defining step of defining a desired area of the imaging surface according to a user operation;
A detection step of detecting brightness of a partial image corresponding to a region defined by the definition step in the electronic image output from the imaging unit;
A rotation step of rotating the polarizing filter in a direction around the optical axis in parallel with the processing of the detection step; and an adjustment for adjusting a rotation angle of the polarizing filter to an angle at which the brightness detected by the detection step satisfies a condition An electronic camera corresponding to a program that executes steps in cooperation with the internal control program.

Images