JP2015106824A - Imaging device, parameter determination method, and parameter determination program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a user to easily operate an imaging device with one hand.SOLUTION: An imaging device 1 includes: imaging means 12 for photographing a subject image to acquire a photographed image; image processing means 14c for performing image processing to the photographed image; motion detection means 15 for detecting motion of the imaging device 1; display control means 14a for displaying, on display means 17, an image for determination for determining imaging parameters of the photographed image or image processing parameters of the image processing to the photographed image and selection means for selecting the position of the image for determination, and moving the selection means along the image for determination according to a result of the detection by the motion detection means 15; and parameter determination means 14b for determining the imaging parameters or the image processing parameters according to the position of the selection means.

Description

  The present invention relates to an imaging apparatus, a parameter determination method, and a parameter determination program.

  There is known a digital camera that displays an effect menu for selecting an image effect to be used and a slide menu for adjusting the effect level of the selected image effect (see Patent Document 1). In this digital camera, an effect menu and a slide menu can be operated by a touch operation on the touch panel.

JP 2012-124608 A

  In the above-mentioned conventional digital camera, it is necessary to operate the touch panel with the other hand while holding the digital camera with one hand, and it is difficult to operate with only one hand.

(1) The imaging apparatus according to claim 1 is an imaging unit that captures a subject image to acquire a captured image, an image processing unit that performs image processing on the captured image, and a motion that detects a motion of the imaging device. The detection means, the determination image for determining the imaging parameter of the captured image or the image processing parameter of the image processing for the captured image, and the selection means for selecting the position on the determination image are displayed on the display means, and the movement A display control unit that moves the selection unit along the determination image according to a detection result by the detection unit, and a parameter determination unit that determines a shooting parameter or an image processing parameter according to the position of the selection unit. Features.
(2) A parameter determination method according to an eleventh aspect is a selection image for determining a shooting parameter of a captured image or an image processing parameter of image processing for the captured image, and a selection for selecting a position on the determination image. A display step of displaying the display unit on the display unit, a moving step of moving the selection unit along the determination image according to a detection result of the movement detection unit that detects the movement of the imaging device, and a position of the selection unit And a parameter determining step for determining a shooting parameter or an image processing parameter.
(3) A parameter determination program according to a twelfth aspect causes a computer to execute the parameter determination method according to the eleventh aspect.

  According to the present invention, it can be easily operated with one hand.

It is a block diagram explaining the structural example of the digital camera by one embodiment of this invention. It is a figure explaining a ring image. It is a figure explaining the image processing according to the position of the cursor of a ring image. It is a figure explaining the combination of the image processing according to a photography scene. It is a figure explaining a motion of a digital camera. It is a flowchart explaining the flow of the process in creative mode. It is a figure explaining the mode of provision of a program.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram illustrating a configuration of a digital camera 1 according to the present embodiment. The digital camera 1 includes an imaging optical system 11, an imaging element 12, a lens driving circuit 13, a control unit 14, a motion detection unit 15, an operation member 16, and a display unit 17. For example, a recording medium 18 such as a memory card can be attached to and detached from the digital camera 1.

  The imaging optical system 11 includes a plurality of lens groups including a zoom lens and a focusing lens, and forms a subject image on the light receiving surface of the imaging element 12. In order to simplify FIG. 1, the imaging optical system 11 is shown as a single lens.

  Under the control of the control unit 14, the lens driving circuit 13 drives the zoom lens of the imaging optical system 11 to adjust the focal length, and drives the focusing lens of the imaging optical system 11 to adjust the focus.

  The image pickup device 12 is an image sensor such as a CMOS image pickup device, for example, picks up the subject image formed by the image pickup optical system 11 and outputs the obtained image signal to the control unit 14.

  The control unit 14 includes a display control unit 14a, a parameter determination unit 14b, an image processing unit 14c, and a registration unit 14d. The control unit 14 includes a CPU, a memory, and peripheral circuits thereof, and realizes the functions of these units by executing a control program stored in the memory. The contents of the function of each part will be described in detail later.

  The motion detection unit 15 includes an acceleration sensor, detects the motion of the digital camera 1 based on the detected acceleration, and outputs a signal indicating the detection result to the control unit 14.

  The operation member 16 includes a shutter button, a recording button, a mode switching button, a cross key, an OK button, a display button, and the like. The operation member 16 outputs an operation signal corresponding to the user operation to the control unit 14.

  The display unit 17 includes a liquid crystal monitor (rear monitor) mounted on the back surface of the digital camera 1 and displays a captured image captured by the image sensor 12 and various setting menus.

  When the photographing mode is set according to the operation signal from the operation member 16, the control unit 14 causes the image sensor 12 to perform through image capturing processing at a predetermined frame rate, and obtains the time series from the image sensor 12. A frame image for display is generated from each frame image and output to the display unit 17. As a result, the through image is displayed on the display unit 17 in real time.

  In the shooting mode, when the shutter button is fully pressed and shooting of a still image is instructed, the control unit 14 causes the image sensor 12 to perform still image shooting processing, and the image signal acquired from the image sensor 12 is processed. Then, predetermined image processing is performed to generate still image data, compression processing is performed by a predetermined method such as JPEG, and recording is performed on the recording medium 18.

  When the reproduction mode is set according to the operation signal from the operation member 16, the control unit 14 reads out and reproduces still image data recorded on the recording medium 18 and displays it on the display unit 17.

  In the digital camera 1 of the present embodiment, a creative mode is provided as a shooting mode in addition to the normal mode. Hereinafter, this creative mode will be described.

  In the creative mode, as shown in FIG. 2, the display control unit 14 a of the control unit 14 superimposes an image 50 for determining image processing parameters of image processing to be performed on the captured image on the through image on the display unit 17. indicate. The image 50 is a ring-shaped (circular) image, and is hereinafter referred to as a ring image 50. A cursor 51 for selecting a position on the ring image 50 is displayed on the ring image 50. The display control unit 14a moves the cursor 51 along the ring image 50 according to the movement of the digital camera 1 detected by the movement detection unit 15 (details will be described later).

  The parameter determination unit 14 b of the control unit 14 determines image processing parameters for image processing to be performed on the captured image in accordance with the position of the cursor 51 with respect to the ring image 50. The image processing unit 14c of the control unit 14 performs image processing on the captured image based on the image processing parameters determined by the parameter determination unit 14b. The display control unit 14a displays the captured image after the image processing by the image processing unit 14c on the display unit 17 as a through image.

  As described above, in the digital camera 1, the image processing parameter can be changed by moving the cursor 51 on the ring image 50, and the captured image that has been subjected to the image processing based on the changed image processing parameter is displayed as a through image. Can be confirmed in real time. In the digital camera 1, the user moves the cursor 51 to change to a desired image processing parameter, and then presses the shutter button to record a still image subjected to image processing based on the desired image processing parameter. Be able to.

  In the present embodiment, the image processing parameter is a ratio of which image processing out of the four image processing (hereinafter referred to as first image processing to fourth image processing) set in the ring image 50. This is a parameter indicating whether or not to perform. Details of the first image processing to the fourth image processing will be described later.

  In the ring image 50, 66 positions from the 0th position to the 65th position are set clockwise from the top point P0 of the ring image 50, and a scale indicating the position is displayed. The top point P0 of the ring image 50 is the 0th position, and the position P1 adjacent to the right is the first position. A position P17 that is 90 degrees clockwise from the 0th position P0 is the 17th position. Between the first position P1 and the seventeenth position P17, 15 positions from the second position to the sixteenth position are set at equal intervals. A position P33 that is 180 degrees away from the 0th position P0 is the 33rd position. Between the 17th position P17 and the 33rd position P33, 15 positions of the 18th position to the 32nd position are set at equal intervals. A position P49 that is 270 degrees clockwise from the 0th position P0 is the 49th position. Between the 33rd position P33 and the 49th position P49, 15 positions from the 34th position to the 48th position are set at equal intervals. The position P65 adjacent to the left of the 0th position P0 is the 65th position. Between the 49th position P49 and the 65th position P65, 15 positions from the 50th position to the 64th position are set at equal intervals.

  In the ring image 50, a first ring portion 50a to a fourth ring portion 50d are set. The first ring portion 50a to the fourth ring portion 50d each have an arc shape (a quarter circle shape) having a central angle of about 90 degrees. The first ring portion 50a is a portion from the first position P1 to the seventeenth position P17. The second ring portion 50b is a portion from the 17th position P17 to the 33rd position P33. The third ring portion 50c is a portion from the 33rd position P33 to the 49th position P49. The fourth ring portion 50d is a portion from the 49th position P49 to the 65th position P65.

  Next, image processing parameters determined according to the position of the cursor 51 on the ring image 50 will be described with reference to FIG. In FIG. 3, the numbers 0 to 65 indicate the 0th position to the 65th position, and the content of the image processing parameter determined at the position indicated by the number is described below the number. When the display of the ring image 50 is started, the display control unit 14a displays the cursor 51 at the 0th position P0 of the ring image 50. At this time, the parameter determination unit 14b determines the image processing parameter so that none of the first image processing to the fourth image processing is performed. Therefore, a through image in which none of the first image processing to the fourth image processing is performed, that is, the original image is displayed on the display unit 17.

  The parameter determination unit 14b is a first parameter that indicates a ratio between the first image processing and the second image processing according to the position of the cursor 51 when the cursor 51 is in the first ring portion 50a of the ring image 50. Determine image processing parameters.

  When the cursor 51 is at the first position P1, the parameter determination unit 14b determines the first image processing parameter so that only the first image processing is performed (that is, the first image processing is performed at a ratio of 100%). Therefore, when the cursor 51 moves clockwise from the 0th position P0 to the 1st position P1, the through image displayed on the display unit 17 changes from the state of the original image to the state where only the first image processing is performed. .

  When the cursor 51 is at the 17th position P17, the parameter determination unit 14b determines the first image processing parameter so that only the second image processing is performed (that is, the second image processing is performed at a ratio of 100%). Therefore, when the cursor 51 moves clockwise from the first position P1 to the seventeenth position P17, the through image displayed on the display unit 17 is subjected to only the second image processing from the state where only the first image processing is performed. It changes to the state. At this time, the captured image displayed on the display unit 17 is gradually changed in 15 stages from a state where only the first image processing is performed to a state where only the second image processing is performed. That is, while the cursor 51 is from the second position to the sixteenth position, the parameter determination unit 14b performs both the first image processing and the second image processing (that is, overlaps the first image processing and the second image processing). ) To determine the first image processing parameter. At this time, the parameter determination unit 14b increases the ratio of the first image processing and decreases the ratio of the second image processing as the cursor 51 is closer to the first position P1, and the second as the cursor 51 is closer to the 17th position P17. The first image processing parameter is determined so as to increase the image processing ratio and decrease the first image processing ratio. For example, when the cursor 51 is at the fifth position, the parameter determination unit 14b sets the first image processing at 75% and the second image processing at a ratio of 25%, and when the cursor 51 is at the ninth position, When one image processing is 50% and the second image processing is 50%, and the cursor 51 is at the thirteenth position, the first image processing is performed at 25% and the second image processing is performed at a ratio of 75%. Determine image processing parameters. Note that the first image processing is performed at a ratio of 75%, for example, the degree of change in the captured image when only the first image processing is performed on the captured image (that is, when the first image processing is performed 100%). The first image processing is performed so that the captured image of 75% of the degree changes when the value is 100%.

  The parameter determination unit 14b is a third parameter indicating the ratio between the second image processing and the third image processing according to the position of the cursor 51 when the cursor 51 is in the second ring portion 50b of the ring image 50. Determine image processing parameters.

  When the cursor 51 is at the 33rd position P33, the parameter determination unit 14b determines the second image processing parameter so that only the third image processing is performed (that is, the third image processing is performed at a ratio of 100%). Accordingly, when the cursor 51 moves clockwise from the 17th position P17 to the 33rd position P33, the through image displayed on the display unit 17 is subjected to only the third image processing from the state where only the second image processing is performed. It changes to the state. At this time, the through image displayed on the display unit 17 gradually transitions from a state where only the second image processing is performed to a state where only the third image processing is performed in 15 stages. That is, while the cursor 51 is from the 18th position to the 32nd position, the parameter determination unit 14b performs both the second image processing and the third image processing (that is, overlaps the second image processing and the third image processing). ) To determine the second image processing parameter. At this time, the parameter determination unit 14b increases the ratio of the second image processing and decreases the ratio of the third image processing as the cursor 51 is closer to the seventeenth position P17, and the third as the cursor 51 is closer to the thirty-third position P33. The second image processing parameter is determined so as to increase the image processing ratio and decrease the second image processing ratio.

  The parameter determination unit 14b is a third parameter that indicates the ratio of the third image processing and the fourth image processing according to the position of the cursor 51 when the cursor 51 is in the third ring portion 50c of the ring image 50. Determine image processing parameters.

  When the cursor 51 is at the 49th position P49, the parameter determination unit 14b determines the third image processing parameter so that only the fourth image processing is performed (that is, the fourth image processing is performed at a ratio of 100%). Therefore, when the cursor 51 is moved clockwise from the 33rd position P33 to the 49th position P49, the through image displayed on the display unit 17 is only the fourth image process from the state where only the third image process is performed. It changes to the state that has been subjected to. At this time, the through image displayed on the display unit 17 is gradually changed in 15 stages from a state where only the third image processing is performed to a state where only the fourth image processing is performed. That is, while the cursor 51 is from the 34th position to the 48th position, the parameter determination unit 14b performs both the third image process and the fourth image process (that is, overlaps the third image process and the fourth image process). The third image processing parameter is determined as follows. At this time, the parameter determination unit 14b increases the ratio of the third image processing and decreases the ratio of the fourth image processing as the cursor 51 is closer to the 33rd position P33, and the fourth as the cursor 51 is closer to the 49th position P49. The third image processing parameter is determined so as to increase the image processing ratio and decrease the third image processing ratio.

  The parameter determination unit 14b is a parameter indicating the ratio between the fourth image processing and the first image processing according to the position of the cursor 51 when the cursor 51 is in the fourth ring portion 50d of the ring image 50. Determine image processing parameters.

  When the cursor 51 is at the 65th position P65, the parameter determination unit 14b determines the fourth image processing parameter so that only the first image processing is performed (that is, the first image processing is performed at a ratio of 100%). Therefore, when the cursor 51 moves clockwise from the 49th position P49 to the 65th position P65, the through image displayed on the display unit 17 is subjected to only the first image processing from the state where only the fourth image processing is performed. It changes to the state. At this time, the through image displayed on the display unit 17 gradually transitions from a state where only the fourth image processing is performed to a state where only the first image processing is performed in 15 stages. That is, while the cursor 51 is in the position from the 50th position to the 64th position, the parameter determination unit 14b performs both the fourth image processing and the first image processing (that is, overlaps the fourth image processing and the first image processing). ) To determine the fourth image processing parameter. At this time, the parameter determination unit 14b increases the ratio of the fourth image processing to lower the ratio of the first image processing as the cursor 51 is closer to the 49th position P49, and decreases the first image processing as the cursor 51 is closer to the 65th position P65. The fourth image processing parameter is determined so as to increase the image processing ratio and decrease the fourth image processing ratio.

  Further, when the cursor 51 moves clockwise from the 65th position P65 to the 0th position P0, the through image displayed on the display unit 17 returns from the state where only the first image processing is performed to the state of the original image.

  As described above, when the cursor 51 rotates once clockwise from the 0th position P0, the image processing performed on the captured image is performed from the original image to the first image processing, the second image processing, the third image processing, and the fourth image processing. After being changed continuously in the order of image processing, the processing returns to the first image processing again and returns to the original image. When the cursor 51 rotates once counterclockwise, the image processing performed on the captured image changes in the reverse order to the case where the cursor 51 rotates once clockwise. In addition, the cursor 51 does not necessarily have to make one rotation. For example, the cursor 51 can rotate counterclockwise after a half turn clockwise to return the image processing change.

  As described above, in the digital camera 1, by moving the position of the cursor 51 with respect to the ring image 50, regarding the image processing to be performed on the captured image, which image processing among the first image processing to the fourth image processing is performed at what ratio. You can change what you do.

  Next, the contents of the first image processing to the fourth image processing set for the ring image 50 will be described in detail. In this description, image processing includes image processing by changing parameters such as saturation, contrast, white balance, etc., and for example, a filter is applied to blur or darken the periphery to make it look like a toy camera. It is assumed that a process for applying an image effect such as a process is included. In the creative mode, a scene determination process for determining a shooting scene is performed, and four image processes corresponding to the determined shooting scene are set in the ring image 50 as a first image process to a fourth image process. That is, the contents of the first image processing to the fourth image processing set for the ring image 50 differ depending on the photographic scene to be discriminated.

  Shooting scenes to be distinguished include "portrait" which is a scene for shooting a person, "close-up" which is a scene for shooting close to the subject, "landscape" which is a scene for shooting landscape, "portrait", There are four types of “others” which are scenes that are neither “close-up” nor “landscape”. Note that the type of shooting scene to be determined is an example, and various other shooting scenes may be determined. A known method is used as a method for determining a shooting scene. The control unit 14, for example, information based on an image signal from the image sensor 12 (luminance, color balance (R / G ratio, B / G ratio, etc.)), camera setting information (focal length and photographing of the imaging optical system 11). The shooting scene is determined based on the magnification.

  FIG. 4 is a diagram illustrating a combination of the first image processing to the fourth image processing according to the shooting scene. In the digital camera 1, four types of image processing suitable for each shooting scene are set in advance as first to fourth image processing for each shooting scene. For example, the ring image 50p for the shooting scene “person” includes “portrait” as the first image processing, “monochrome” as the second image processing, “high key” as the third image processing, and “cross” as the fourth image processing. Process (R) "is set. The ring image 50n for the shooting scene “close-up” includes “Vivid” as the first image processing, “High key” as the second image processing, “Toy camera” as the third image processing, and “Select color” as the fourth image processing. Is set. The ring image 50g for the shooting scene “landscape” includes “cross process (B)” as the first image processing, “landscape” as the second image processing, “filter monochrome (sepia)” as the third image processing, and fourth. “Avant-garde” is set as the image processing. The ring image 50 s for the shooting scene “others” includes “avant-garde” as the first image processing, “monochrome” as the second image processing, “toy camera” as the third image processing, and “cross process ( G) "is set. In FIG. 4, for the sake of explanation, text indicating the shooting scene and the contents of the first image processing to the fourth image processing is shown, but the text is not displayed on the display screen of the actual display unit 17. Only the ring image 50 and the cursor 51 are displayed. That is, the ring images 50p, 50n, 50g, and 50s are displayed on the display screen of the display unit 17 as the same image (that is, with the same display contents) in any shooting scene.

  “Portrait” is image processing for creating an image that makes a person's skin look beautiful. “Monochrome” is image processing for creating a monochrome image only. “High key” is image processing for creating an image with a bright entire screen and less shadow. “Cross process (R)”, “Cross process (G)”, and “Cross process (B)” are the same as those in which cross process (a method of silver salt photography using a positive film to develop negative) This is image processing for obtaining an image effect. In “Cross Process (R)”, a strong reddish image is obtained. In “Cross Process (G)”, a greenish image is obtained. In “Cross Process (B)”, a bluish image is obtained. . “Vivid” is image processing for creating a colorful image with enhanced contrast. The “toy camera” is image processing for obtaining an image effect that is taken by a toy camera. “Select color” is image processing for obtaining an image effect in which only a specific color is left and the others are changed to monochrome. “Landscape” is image processing for creating an image suitable for a landscape such as nature or a cityscape. “Filter monochrome (sepia)” is image processing for creating an image only in sepia shades. “Avant-Garde” is image processing for creating a unique image with higher contrast and saturation than “Vivid”.

  Note that information on the combination of image processing to be set as the first image processing to fourth image processing on the ring image 50 is stored in advance in the memory in the digital camera 1 for each shooting scene, and based on this information and the scene determination result. Thus, the first image processing to the fourth image processing are set for the ring image 50.

  Further, the digital camera 1 can register a user's favorite image processing parameter among the first image processing parameter to the fourth image processing parameter for each shooting scene. For example, when the shooting scene is “person”, it is assumed that the user performs a predetermined operation for registering a favorite via the operation member 16 when the cursor 51 is in the second ring portion 50 b. Then, the registration unit 14d of the control unit 14 records the second image processing parameter (that is, the parameter indicating the ratio between the second image processing “monochrome” and the third image processing “high key”) in the memory as a favorite image processing parameter ( sign up. In this way, the registration unit 14d registers the user's favorite image processing parameters in accordance with the user's operation.

  Note that the registration unit 14d may learn from the accumulated data of image processing parameters used for shooting in the past and automatically register the user's favorite image processing parameters. For example, in the shooting scene “close-up”, when the first image processing parameter (that is, the parameter indicating the ratio between the first image processing “Vivid” and the second image processing “high key”) is used most frequently, The registration unit 14d records (registers) the first image processing parameter in the memory as a favorite image processing parameter in the shooting scene “close-up”.

  Next, processing for moving the cursor 51 on the ring image 50 according to the movement of the digital camera 1 detected by the movement detection unit 15 will be described with reference to FIG. In the present embodiment, the user can move the cursor 51 by shaking the digital camera 1 in the vertical direction. In the present embodiment, description will be made on the assumption that the user holds the right side of the digital camera 1.

  While the ring image 50 is displayed, the acceleration sensor of the motion detection unit 15 detects the acceleration of the digital camera 1 in the horizontal direction (X-axis direction, long direction) and the vertical direction (Y-axis direction, short direction). . The right direction is the X axis positive direction, and the left direction is the X axis negative direction. Also, the upper direction is the Y axis positive direction, and the lower direction is the Y axis negative direction. The acceleration in the X-axis direction and the Y-axis direction is represented as (X, Y).

  As shown in FIG. 5A, when the user stands still with the digital camera 1 in a normal position (a state where the short direction of the digital camera 1 substantially coincides with the direction of gravity), the motion detection unit 15 (X, Y) = (0 g, 1 g) is detected.

  Further, as shown in FIG. 5B, when the user holds the right side of the digital camera 1 and swings it downward, the motion detection unit 15, for example, (X, Y) = (-1g, -2g) In addition, the acceleration in the negative X-axis direction and the acceleration in the negative Y-axis direction are detected.

  Further, as shown in FIG. 5C, when the user holds the right side of the digital camera 1 and swings upward, the motion detection unit 15, for example, (X, Y) = (− 1g, 2g) , X-axis negative acceleration and Y-axis negative acceleration are detected.

  As described above, the motion detection unit 15 does not detect the acceleration in the X-axis direction when the user is standing still with the digital camera 1 in the normal position, but swings up and down while holding the right side of the digital camera 1. Sometimes the X-axis negative direction acceleration is detected. Further, the motion detection unit 15 detects an acceleration in the negative Y-axis direction when the user swings the digital camera 1 downward, and detects an acceleration in the positive Y-axis direction when the user shakes the digital camera 1 upward. . Therefore, based on the acceleration in the X-axis direction and the Y-axis direction detected by the motion detection unit 15, it can be detected whether the digital camera 1 is stationary, shaken downward, or shaken upward.

  The display control unit 14a stops the cursor 51 at the 0th position P0 when the display of the ring image 50 is started. When the movement detecting unit 15 detects that the digital camera 1 is swung downward while the cursor 51 is stopped, the display control unit 14a moves the cursor 51 counterclockwise along the ring image 50. Move.

  At this time, the display control unit 14a moves the cursor 51 at a predetermined speed. Among the first ring portion 50a to the fourth ring portion 50d, the ring in which the favorite image processing parameter registered by the registration unit 14d is determined. In the portion, the moving speed of the cursor 51 is slowed down. For example, it is assumed that the fourth image processing parameter (a parameter indicating the ratio of the fourth image processing “Avant-Garde” and the first image processing “Cross Process (B)”) is registered in the shooting scene “landscape”. In this case, the display control unit 14a moves the cursor 51 at the first rotation speed (for example, 60 rpm) in the first ring portion 50a to the third ring portion 50c. On the other hand, the display control unit 14a moves the cursor 51 at a second rotation speed (for example, 40 rpm) slower than the first rotation speed in the fourth ring portion 50d where the fourth image processing parameter is determined. As described above, the display control unit 14a makes the moving speed of the cursor 51 slower in the ring portion corresponding to the image processing parameter registered as a favorite than in the other ring portions.

  When the movement detecting unit 15 detects that the digital camera 1 is swung upward while the cursor 51 is moved counterclockwise, the display control unit 14a stops the cursor 51.

  On the other hand, when the motion detection unit 15 detects that the digital camera 1 is swung upward while the cursor 51 is stopped, the display control unit 14a rotates the cursor 51 clockwise along the ring image 50. Move to. At this time, the display control unit 14a moves the cursor 51 at a predetermined speed as in the case of the counterclockwise direction described above, and the ring portion corresponding to the image processing parameter registered as a favorite is slower than the other ring portions. Move at speed. When the movement detection unit 15 detects that the digital camera 1 is shaken downward while the cursor 51 is moving clockwise, the display control unit 14a stops the cursor 51.

  As described above, when the motion detection unit 15 detects that the digital camera 1 has been shaken while the cursor 51 is stopped, the display control unit 14a displays the direction in which the digital camera 1 is shaken (ie, Y The cursor 51 is moved in the rotation direction corresponding to the direction of acceleration in the axial direction. Then, when the cursor 51 is moving, if the motion detection unit 15 detects acceleration in the opposite direction in the Y-axis direction from the start of the movement of the cursor 51, the display control unit 14a stops the cursor 51.

  Therefore, the user can move the cursor 51 or stop the cursor 51 simply by shaking the digital camera 1, so that the user can easily operate the cursor 51 with only one hand to obtain the desired image processing parameters. Image processing based on the captured image can be performed.

  The display control unit 14a moves the cursor 51 when the absolute value of the acceleration in the Y-axis direction detected by the motion detection unit 15 is greater than or equal to a predetermined threshold, and when the absolute value is less than the predetermined threshold, the display control unit 14a moves the cursor 51. Do not move. By doing so, the cursor 51 can be moved only when the user shakes the digital camera 1 to move the cursor 51. For example, when the user moves the digital camera 1 to change the composition, the cursor is moved. 51 can be prevented from moving.

  Next, the flow of processing executed by the control unit 14 in the creative mode will be described with reference to the flowchart shown in FIG. When the shooting mode is switched to the creative mode, the control unit 14 activates a program for performing the process of FIG. 6 recorded in the memory and starts the process.

  In step S1, the control unit 14 causes the image sensor 12 to capture a subject image in time series to acquire a captured image, starts processing to display it as a through image on the display unit 17, and proceeds to step S2.

  In step S2, the display control unit 14a starts a process of displaying the ring image 50 and the cursor 51 on the display unit 17 so as to overlap the through image, and proceeds to step S3.

  In step S <b> 3, the control unit 14 determines whether or not the digital camera 1 is shaken upward or downward based on the acceleration detected by the motion detection unit 15. The control unit 14 proceeds to step S4 when the digital camera 1 is swung upward or downward, and proceeds to step S10 when the digital camera 1 is not swung upward or downward.

  In step S4, the display control unit 14a moves the cursor 51 at a predetermined speed along the ring image 50 in a rotation direction corresponding to the direction in which the digital camera 1 is swung (the direction of acceleration in the Y-axis direction). Proceed to step S5.

  In step S5, the parameter determination unit 14b determines the image processing parameters of the image processing for the captured image according to the position of the cursor 51 in the ring image 50 as described above, and proceeds to step S6.

  In step S6, the image processing unit 14c performs image processing on the captured image based on the image processing parameters determined in step S5, and then proceeds to step S7.

  In step S7, the display control unit 14a displays the captured image subjected to the image processing in step S6 on the display unit 17 as a through image, and proceeds to step S8. Thereby, the change of the image processing parameter according to the movement of the cursor 51 is reflected in the through image. Therefore, the user can confirm the content of the change due to the movement of the cursor 51.

  In step S <b> 8, the control unit 14 determines whether or not the motion detection unit 15 has detected an acceleration in a direction opposite to that at the start of movement of the cursor 51 (that is, whether the digital camera 1 has been swung in a direction opposite to that at the start of movement). judge. The control unit 14 proceeds to step S9 when acceleration in the direction opposite to the start of movement of the cursor 51 is detected, and returns to step S4 when it is not detected.

  In step S9, the display control unit 14a stops the cursor 51 and proceeds to step S10.

  In step S <b> 10, the control unit 14 determines whether a shooting instruction is given by the user (that is, whether the shutter button is pressed). The control unit 14 proceeds to step S11 when the photographing instruction is performed, and returns to step S3 when the photographing instruction is not performed.

  In step S <b> 11, the control unit 14 causes the image sensor 12 to perform an imaging process for recording. The image processing unit 14c performs image processing on the captured image data obtained by the imaging processing based on the image processing parameter corresponding to the position of the cursor 51 at the time of the shooting instruction. Then, the control unit 14 records the captured image data subjected to the image processing as still image data in the recording medium 18, and ends the processing illustrated in FIG.

According to the embodiment described above, the following operational effects can be obtained.
(1) In the digital camera 1, the display control unit 14 a selects a determination image (ring image 50) for determining image processing parameters of image processing for the captured image and a selection unit for selecting a position on the determination image. (Cursor 51) is displayed on the display unit 17, and the cursor 51 is moved along the ring image 50 in accordance with the detection result by the motion detection unit 15. The parameter determination unit 14 b determines an image processing parameter according to the position of the cursor 51. Thus, for example, the user only holds the digital camera with one hand while shaking the digital camera 1 with one hand without using both hands as in the case of operating the touch panel with the other hand. Thus, the cursor 51 can be moved. Therefore, the user can easily operate the digital camera 1 with one hand to change the image processing parameter applied to the captured image.

(2) In the digital camera 1, the display control unit 14 a moves the cursor 51 in the rotation direction corresponding to the direction of the acceleration detected by the acceleration sensor of the motion detection unit 15. As a result, the rotation direction of the cursor 51 changes depending on the direction in which the digital camera 1 is shaken, which is intuitive and easy for the user to understand.

(3) In the digital camera 1, the display control unit 14 a moves the cursor 51 when the motion detection unit 15 detects a predetermined acceleration (acceleration in the Y-axis direction is equal to or greater than a predetermined threshold in this embodiment). To start. In addition, the display control unit 14a stops the cursor 51 when the motion detection unit 15 detects an acceleration in a direction opposite to that at the start of the movement of the cursor 51 while the cursor 51 is moving. As a result, the movement of the cursor 51 is started when the digital camera 1 is swung upward or downward, and the movement of the cursor 51 is stopped when the digital camera 1 is swung in the opposite direction to the start of movement. Is intuitive and easy to understand.

(4) In the digital camera 1, the registration unit 14d selects a user's favorite image processing parameter among a plurality of image processing parameters (first image processing parameter to fourth image processing parameter) that can be determined by the parameter determination unit 14b. sign up. In the ring image 50, the display control unit 14a determines the favorite image processing parameter registered by the registration unit 14d in the ring image 50 (that is, corresponding to the favorite image processing parameter), and the cursor 51 is more than the other part. Slow down the movement speed. While the cursor 51 is moving, the user confirms a through image in which the image processing parameter sequentially changes, and when the desired image processing parameter is reached, the user shakes the digital camera 1 to stop the cursor 51. Therefore, the slower the moving speed of the cursor 51, the easier it is to stop the cursor 51 at a desired position, and fine adjustment of image processing parameters is easy. Therefore, by slowing down the moving speed of the cursor 51 at the ring portion corresponding to the favorite image processing parameter, it is possible to facilitate fine adjustment of the favorite image processing parameter.

(Modification 1)
The display control unit 14 a may change the moving speed of the cursor 51 in accordance with the acceleration value detected by the motion detection unit 15. For example, the display control unit 14a may increase the rotation speed of the cursor 51 as the absolute value of the acceleration in the Y-axis direction detected by the motion detection unit 15 increases. In this case, when the absolute value of the acceleration in the Y-axis direction is Y, the display control unit 14a sets the moving speed of the cursor 51 to the first when Y is within the first range (0 <Y ≦ 0.5). The rotation speed is 1 [rpm]. When Y is in the second range (0.5 <Y ≦ 1.0), the display control unit 14a sets the moving speed of the cursor 51 to a second rotational speed that is faster than the first rotational speed A. Let B [rpm]. When Y is in the third range (1.0 <Y ≦ 1.5), the display control unit 14a sets the third rotation speed C, which is faster than the second rotation speed B, to the movement speed of the cursor 51. [rpm]. When Y is within the fourth range (1.5 <Y ≦ 2.0), the display control unit 14a sets the fourth rotation speed D, which is higher than the third rotation speed C, for moving the cursor 51. [rpm].

  In this way, when the user shakes the digital camera 1 strongly, the moving speed of the cursor 51 increases, and when the user shakes the digital camera 1 weakly, the moving speed of the cursor 51 decreases. Therefore, the moving speed of the cursor 51 can be easily changed by the user changing the way the digital camera 1 is swung.

(Modification 2)
In the above-described embodiment, the description has been made on the assumption that the user holds the right side of the digital camera 1 and swings it up and down, but the holding position of the user's digital camera 1 is not limited to the right side. For example, when the user holds the left side of the digital camera 1, the control opposite to that performed when the right side is held may be performed. That is, when the motion detection unit 15 detects that the user holds the left side of the digital camera 1 and swings downward, the display control unit 14a moves the cursor 51 clockwise along the ring image 50. . When the motion detection unit 15 detects that the user holds the left side of the digital camera 1 and swings upward, the display control unit 14a moves the cursor 51 counterclockwise along the ring image 50. Let By doing so, the cursor 51 moves in a direction that matches the movement of the digital camera 1, which is intuitive and easy for the user to understand. Whether the holding position of the digital camera 1 is on the right side or the left side can be determined by the sign of the acceleration in the X-axis direction detected by the acceleration sensor of the motion detection unit 15. As described above, when the user holds the right side of the digital camera 1 and swings it upward or downward, the X-axis negative acceleration and the Y-axis positive acceleration or negative acceleration are detected. On the other hand, when the user holds the left side of the digital camera 1 and swings it upward or downward, an X-axis positive acceleration and a Y-axis positive or negative acceleration are detected.

  In the above description, it is assumed that the user takes a picture while holding the digital camera 1 in the normal position. However, the user places the digital camera 1 in the vertical position (a state in which the longitudinal direction of the digital camera 1 substantially matches the gravity direction). Even in the case of taking a picture, the rotation direction of the cursor 51 may be controlled in the same manner as described above. Whether the digital camera 1 is in the normal position or the vertical position can be determined by the acceleration detected by the acceleration sensor of the motion detection unit 15. As described above, when the digital camera 1 is stationary at the positive position, the acceleration in the X-axis direction is hardly detected, and the acceleration in the Y-axis negative direction is detected. On the other hand, when the digital camera 1 is stationary in the vertical position, acceleration in the Y-axis direction is hardly detected, and acceleration in the X-axis positive direction or negative direction is detected. Further, when the digital camera 1 is in the vertical position, whether the digital camera 1 is shaken upward or downward can be determined by the sign of the acceleration in the X-axis direction. Further, when the digital camera 1 is in the vertical position, whether the holding position of the digital camera 1 is the right side or the left side can be determined by the positive or negative of the acceleration in the Y-axis direction detected by the acceleration sensor of the motion detection unit 15. Therefore, when the digital camera 1 is in the vertical position, as in the normal position, the digital camera 1 moves in the direction that matches the movement of the digital camera 1 based on the acceleration in the X-axis direction and the Y-axis direction detected by the motion detection unit 15. The direction of rotation of the cursor 51 can be controlled so that the cursor 51 moves.

  As described above, the motion detection unit 15 is based on the X-axis acceleration and the Y-axis acceleration detected by the acceleration sensor, and the user's holding position of the digital camera 1 and the direction in which the digital camera 1 is swung. (Upward or downward) is detected. The display control unit 14a determines a direction (that is, a rotation direction) for moving the cursor 51 based on the holding position detected by the motion detection unit 15 and the direction in which the digital camera 1 is shaken. By doing so, the cursor 51 moves in a direction that matches the movement of the digital camera 1, which is intuitive and easy for the user to understand.

(Modification 3)
The display control unit 14a may move the cursor 51 when the digital camera 1 is shaken while a predetermined button of the operation member 16 is pressed by the user. In this way, the cursor 51 can be moved only when the user shakes the digital camera 1 to move the cursor 51. When the digital camera 1 is moved due to a composition change or the like, the cursor 51 is moved. You can avoid it.

(Modification 4)
In the above-described embodiment, the example in which the image processing parameter indicating the ratio of the two image processes of the first image process to the fourth image process is determined according to the position of the cursor 51 in the ring image 50 has been described. The image processing parameters need not be limited to this. For example, the image processing parameter may be an effect level of one image processing. For example, the parameter determination unit 14b selects the first image processing when the cursor 51 is in the first ring portion 50a, and determines the effect level of the first image processing according to the position of the cursor 51 in the first ring portion 50a. To do. Similarly, it is possible to determine the effect level of the second image processing in the second ring portion 50b, the effect level of the third image processing in the third ring portion 50c, and the effect level of the fourth image processing in the fourth ring portion 50d. Further, for example, the favorite image processing setting may be called out from a plurality of favorite image processing settings registered in advance according to the position of the cursor 51 in the ring image 50.

(Modification 5)
In the embodiment described above, the example in which the parameter determination unit 14b determines the image processing parameters of the image processing for the captured image according to the position of the cursor 51 in the ring image 50 has been described, but the present invention is not limited thereto. The parameter determination unit 14b may determine shooting parameters (for example, aperture, shutter speed, ISO sensitivity, shooting mode, etc.) of the captured image according to the position of the cursor 51 in the ring image 50. For example, each position of the ring image 50 is associated with a selectable shutter speed. When the digital camera 1 is shaken up and down and the cursor 51 is moved, the control unit 14 performs control so that the shutter speed is associated with the position of the cursor 51 after the movement.

(Modification 6)
In the above-described embodiment, the example in which the motion detection unit 15 is configured by the acceleration sensor has been described. However, the present invention is not limited thereto, and for example, an inclination detection sensor may be used, and the motion of the digital camera 1 can be detected. Any configuration may be used. When the movement of the digital camera 1 is detected by the tilt detection sensor, the display control unit 14a may move the cursor 51 in the direction in which the digital camera 1 detected by the tilt detection sensor is tilted. In this case, in step S8 of FIG. 6, the control unit 14 detects whether the tilt of the digital camera 1 has returned to the normal position and determines that the tilt of the digital camera 1 has returned to the normal position. What is necessary is just to stop the cursor 51 of the ring image 50 (step S9 of FIG. 6). In the case of vertical position shooting, the cursor 51 of the ring image 50 may be stopped when it is determined that the tilt of the digital camera 1 has returned to the vertical position.

(Modification 7)
In the above-described embodiment, the example in which the image processing applied to the captured image is changed by moving the cursor 51 of the ring image 50 in the still image shooting mode has been described. However, the change is made in the moving image shooting mode. You may do it. Further, in the playback mode for playing back a captured image, the image processing applied to the captured image being played back may be changed by moving the cursor 51 of the ring image 50. In this case, the captured image being reproduced may be enlarged or reduced by moving the cursor 51 of the ring image 50.

(Modification 8)
In the above-described embodiment, the example in which the shutter is released in response to the pressing operation of the shutter button has been described. However, a so-called touch shutter that releases the shutter in response to the touch operation on the touch panel may be used.

(Modification 9)
In the embodiment described above, the image processing to be performed on the captured image is selected from the four types of image processing (first image processing to fourth image processing) according to the position of the cursor 51 in the ring image 50. did. However, the number of image processes that can be selected in the ring image 50 is not limited to this, and may be two or three, or may be five or more.

(Modification 10)
In the above-described embodiment, the example in which the ring image 50 is used as the image for determining the image processing parameter has been described. However, the image for determining the image processing parameter is not limited to the ring shape, and may be, for example, a bar shape. In this case, the display control unit 14a moves the cursor on the bar-shaped image, and the parameter determination unit 14b determines the image processing parameter according to the position of the cursor.

(Modification 11)
In the above-described embodiment, the example in which the control unit 14 of the digital camera 1 executes the program recorded in the memory to perform the above-described process of FIG. 6 has been described. This program may be recorded in advance at the time of product shipment, or may be provided through a recording medium such as a memory card or a data signal such as the Internet after the product shipment. FIG. 7 shows the state. The digital camera 1 is provided with a program via a recording medium 18 such as a memory card. The digital camera 1 also has a connection function with the communication line 101. A computer 102 is a server computer that provides the program, and stores the program in a recording medium such as the hard disk 103. The communication line 101 is a communication line such as the Internet or personal computer communication, or a dedicated communication line. The computer 102 reads the program using the hard disk 103 and transmits the program to the digital camera 1 via the communication line 101. That is, the program is transmitted as a data signal through the communication line 101 via a carrier wave. As described above, the program can be supplied as a computer-readable computer program product in various forms such as a recording medium and a data signal (carrier wave).

(Modification 12)
In the embodiment described above, an example in which the present invention is applied to a digital camera has been described. However, the present invention is not limited to this. For example, the present invention may be applied to a mobile phone, a smartphone, a tablet terminal, and the like.

  Although various embodiments and modifications have been described above, the present invention is not limited to these contents. Other embodiments conceivable within the scope of the technical idea of the present invention are also included in the scope of the present invention.

DESCRIPTION OF SYMBOLS 1 ... Digital camera, 11 ... Imaging optical system, 12 ... Imaging device, 14 ... Control part, 14a ... Display control part, 14b ... Parameter determination part, 14c ... Image processing part, 14d ... Registration part, 16 ... Operation member, 17 ... Display unit, 18 ... Recording medium

Claims (12)

Imaging means for capturing a subject image and obtaining a captured image;
Image processing means for performing image processing on the captured image;
Motion detection means for detecting the motion of the imaging device;
A display for displaying a determination image for determining a shooting parameter of the captured image or an image processing parameter of image processing for the captured image, and a selection unit for selecting a position on the determination image; Display control means for moving the selection means along the determination image according to a detection result by the detection means;
Parameter determining means for determining the imaging parameter or the image processing parameter according to the position of the selecting means;
An imaging apparatus comprising: The imaging device according to claim 1,
The determination image is circular,
The imaging apparatus, wherein the display control means moves the selection means along a circular shape of the determination image. The imaging device according to claim 2,
The motion detection means is configured by an acceleration sensor that detects acceleration of the imaging device,
The image pickup apparatus, wherein the display control means moves the selection means in a rotation direction corresponding to a direction of acceleration detected by the acceleration sensor. The imaging device according to claim 3.
The display control means starts movement of the selection means when a predetermined acceleration is detected by the acceleration sensor in a state where the selection means is stopped, and in a state where the selection means is moving, An imaging apparatus, wherein an acceleration sensor detects an acceleration in a direction opposite to that when the selection unit starts to move, and stops the selection unit. In the imaging device according to claim 3 or 4,
Of the plurality of image processing parameters that can be determined by the parameter determination unit, the image processing parameter further includes a registration unit that registers a user's favorite image processing parameter,
The image pickup apparatus characterized in that the display control means makes the moving speed of the selection means slower in a portion where the favorite image processing parameter is determined in the determination image than in other portions. The imaging apparatus according to claim 4,
The image pickup apparatus, wherein the display control means increases the moving speed of the selection means as the absolute value of the acceleration detected by the acceleration sensor is larger. In the imaging device according to any one of claims 1 to 6,
A holding position detecting means for detecting a holding position of the user's imaging device;
The imaging apparatus according to claim 1, wherein the display control unit determines a direction in which the selection unit is moved based on the holding position detected by the holding position detection unit. In the imaging device according to any one of claims 1 to 7,
When the position of the selection unit is moved, the parameter determination unit changes the image processing parameter according to the movement of the selection unit, and the image processing unit uses the image processing parameter changed by the parameter determination unit. Then, the image processing is performed on the captured image, and the display control unit displays the captured image after the image processing by the image processing unit on the display unit. In the imaging device according to any one of claims 1 to 8,
The determination image includes a first image portion for determining a first image processing parameter and a second image portion for determining a second image processing parameter;
The parameter determination means determines the first image processing parameter according to the position of the selection means when the selection means is in the first image portion, and the selection means is in the second image portion. In the imaging apparatus, the second image processing parameter is determined in accordance with a position of the selection unit. The imaging device according to claim 9,
The first image processing parameter is a parameter indicating a ratio between the first image processing and the second image processing,
The second image processing parameter is a parameter indicating a ratio of the third image processing and the fourth image processing,
When the first image processing parameter is determined by the parameter determination unit, the image processing unit performs both the first image processing and the second image processing at a ratio indicated by the first image processing parameter. When the second image processing parameter is determined by the parameter determination means, the third image processing and the fourth image are performed at the ratio indicated by the second image processing parameter. An imaging apparatus characterized by performing both processes on the captured image. A display step of displaying on the display means a determination image for determining a shooting parameter of the captured image or an image processing parameter of image processing for the captured image, and a selection means for selecting a position on the determination image;
A moving step of moving the selection means along the determination image according to a detection result by a motion detection means for detecting a movement of the imaging device;
A parameter determining step for determining the imaging parameter or the image processing parameter according to the position of the selection unit;
A parameter determination method characterized by comprising:   A parameter determination program that causes a computer to execute the parameter determination method according to claim 11.

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