JP6362110B2 - Display control device, control method therefor, program, and recording medium - Google Patents

Description

  The present invention relates to a display control apparatus, a control method therefor, a program, and a recording medium.

  In recent years, information terminals equipped with touch panels that enable intuitive operations have become widespread, and functions using touch panels have also increased. For example, hand-drawn input that allows a desired picture to be drawn on the LCD panel by freehand input is one of the functions that utilize the touch panel.

  In recent years, a touch panel mounted on a digital video camera, a digital camera, a mobile phone, or the like is roughly classified into two types, a resistive film type and a capacitance type. Generally, in these two types of touch panels, a frame area is required along the outer periphery of an area (position detection area) where position detection is possible as shown in FIG.

  When an object such as a finger or a stylus touches the position detection area of the touch panel, the touched position is detected. However, even within the position detection area, the position detection accuracy is lower in the peripheral area (see FIG. 1) than in the central area. A decrease in position detection accuracy in the peripheral region occurs in both the resistive film type and the electrostatic capacity type. Therefore, it is not easy for the user to accurately draw a desired picture in the peripheral area of the touch panel, particularly when handwritten input is performed.

  Patent Document 1 is known as a technique for coping with a decrease in position detection accuracy in a peripheral area of a touch panel. Patent Document 1 discloses designing an application so that items and buttons are not arranged in a peripheral portion as background art. Patent Document 1 discloses an information input device that corrects the detected coordinates so as to be shifted toward the outside of the touch panel when the position (coordinates) where the touch is detected is a peripheral portion of the touch panel. Yes. By such correction, even when items and buttons are arranged in the peripheral portion, the user can be conscious of not touching the peripheral portion of the touch panel.

Japanese Patent Laid-Open No. 9-237160

  Not disposing items and buttons in the peripheral portion as disclosed in Patent Document 1 is substantially the same as making the display area of the display narrower than the position detection area. When the display area is narrowed, problems such as reduced visibility and a reduced amount of information that can be displayed arise. On the other hand, when the detected coordinates are corrected so as to be shifted toward the outside of the touch panel as in the information input device of Patent Document 1, such a problem does not occur, but the user draws a picture by hand-drawn input. In addition, intuitive drawing in the peripheral area becomes difficult.

  In addition, the problem that accurate and intuitive drawing becomes difficult in the peripheral area is not limited to the touch panel, and may occur when hand-drawn input is performed using other types of pointing devices. For example, even when hand-drawn input is performed with a pointing device such as a mouse or a space gesture detection device, the operability is worse in the peripheral area than in the vicinity of the center, and drawing is difficult.

  The present invention has been made in view of such a situation, and an object thereof is to provide a technique that allows a user to easily draw in a display area of a display device.

In order to solve the above-described problems, the present invention is a display control device, which is a display control means for displaying a first image in a display region including a central region and a peripheral region of the display device, and an operation of the display control device. Switching means for switching a mode between a drawing mode and another mode, and a detecting means for detecting a position input instruction for inputting a position on the display area, wherein the operation mode is changed from the other mode to the drawing mode. during the Ru is switched to the mode, the display control means, wherein a reduced image of the first image is displayed to fit in the central region in place of the first image, the operation mode is the drawing mode wherein the position input instruction is discovered in, the display control means provides a display control apparatus and displaying the second image at a position corresponding to the position input instruction.

  Other features of the present invention will become more apparent from the accompanying drawings and the following description of the preferred embodiments.

  According to the present invention, the user can easily draw in the display area of the display device.

The conceptual diagram which shows the position detection area and frame area of a touch panel. FIG. 2 is a functional block diagram of the imaging apparatus 100. FIG. 3 is a perspective view illustrating an appearance of the imaging apparatus 100 as viewed from the upper surface side. 6 is a flowchart showing the operation of the imaging apparatus 100. 5 is a flowchart showing details of a drawing mode process (S410 in FIG. 4). The figure which shows the example of arrangement | positioning of image data and OSD data. The figure which shows the image data on which the drawing image was superimposed. The figure which shows the empty area | region of the center area | region which arises at the time of reduction of image data. The figure which shows the modification of FIG.6 (b).

  Embodiments of the present invention will be described below with reference to the accompanying drawings. The technical scope of the present invention is determined by the claims, and is not limited by the following individual embodiments. In addition, not all combinations of features described in the embodiments are essential to the present invention.

[First Embodiment]
An embodiment in which the display control apparatus of the present invention is applied to an imaging apparatus such as a digital video camera will be described. FIG. 2 is a functional block diagram of the imaging apparatus 100, and FIG. 3 is a perspective view showing an appearance of the imaging apparatus 100 as viewed from the upper surface side. 3A is a perspective view as seen from the front side of the optical axis of the lens, FIG. 3B is a perspective view as seen from the back side, and FIG. It is a perspective view which shows the state reversely accommodated with respect to it.

  In FIG. 2, a CPU 109 is an arithmetic processing unit that reads a program from a program / data storage unit 110 and controls the operation of the entire imaging apparatus 100 according to the program. The read program has a function for causing the CPU 109 to execute a plurality of tasks in parallel, and a mode control task, a camera control task, a recorder control task, and a display control task operate under the control of the CPU 109. The CPU 109 that executes the display control task serves as a display control unit. A part of the primary storage unit 103 functions as a work area of the CPU 109, and provides a moving image frame buffer and an OSD (On Screen Display) frame buffer, which will be described later.

  The camera unit 101 generates an analog video signal by photoelectrically converting a subject image. Therefore, the camera unit 101 includes a photographic lens for forming an image of subject light, an image sensor that photoelectrically converts a subject image formed by the photographic lens, a circuit that drives the image sensor, and the like. The video processing unit 102 converts the analog video signal output from the camera unit 101 into a digital signal, and performs predetermined signal processing to generate moving image data. The operations of the camera unit 101 and the video processing unit 102 are controlled by the camera control task executed by the CPU 109.

  The encoder / decoder unit 104 encodes the moving image data from the video processing unit 102. The moving image data encoded by the encoder / decoder unit 104 is temporarily stored in the primary storage unit 103 and then stored in the moving image storage unit 105 together with accompanying management data. The moving image storage unit 105 includes a built-in memory such as a hard disk and a flash memory, and a removable recording medium such as a memory card.

  At the time of moving image reproduction, encoded moving image data (hereinafter referred to as image data) read out from the moving image storage unit 105 is decoded by the encoder / decoder unit 104 via the primary storage unit 103, and again the primary storage unit. 103 is expanded in the moving image frame buffer 103. Control of the encoder / decoder unit 104 and the moving image storage unit 105 is controlled by the recorder control task executed by the CPU 109.

  The management data read out from the moving image storage unit 105 is used to generate OSD data, that is, characters or GUI (Graphical User Interface) that are displayed superimposed on a captured image or a reproduced image. The generated OSD data is drawn in the OSD frame buffer in the primary storage unit 103.

  The contents of the moving image frame buffer and the OSD frame buffer are superimposed on the captured image and the reproduced image by the display control unit 111 and displayed on the touch panel LCD panel 112. Control relating to OSD data and control of the display control unit 111 and the LCD panel 112 are controlled by the display control control task executed by the CPU 109.

  The panel state detection unit 106 detects the state of a vari-angle LCD unit (the display unit 113 shown in FIG. 3) having the touch panel 108 and the LCD panel 112 on the front. As shown in FIG. 3B, the panel state detection unit 106 operates such that the display unit 113 opens and closes in the arrow A direction with respect to the main body 114, and the display unit 113 moves in the arrow B direction with respect to the main body 114. The rotating operation is detected, and the detection result is notified to the CPU 109. The operation keys 107 provided on the main body 114 and the touch panel 108 included in the display unit 113 are both operation units for receiving operation instructions from the user.

  As shown in FIGS. 3B and 3C, the imaging apparatus 100 is rotatably attached to (connected to) the main body 114 by the main body 114 having the camera 101 and the hinge 120. ) Display portion 113. As shown in FIG. 3C, the display unit 113 can be inverted and stored with respect to the main body unit 114 by the hinge unit 120.

  The LCD panel 112 and the touch panel 108 are integrally formed and are built in the display unit 113. For example, the touch panel 108 is configured such that the light transmittance does not hinder the display of the LCD panel 112, and is attached to the upper layer of the display surface of the LCD panel 112. Then, input coordinates on the touch panel 108 and display coordinates on the LCD panel 112 are associated with each other. Thus, a GUI is configured as if the user can directly operate the screen displayed on the LCD panel 112.

Further, the CPU 109 can detect the following operations on the touch panel 108.
-Touching the touch panel 108 with a finger or pen (hereinafter, touchdown)
-Touching the touch panel 108 with a finger or pen (hereinafter, touch-on)
-The touch panel 108 is moved while being touched with a finger or a pen (hereinafter referred to as a move).
-The finger or pen that was touching the touch panel 108 was released (hereinafter, touch-off).
The CPU 109 is notified of these operations and the position coordinates where the finger or pen touches the touch panel 108. The CPU 109 determines what operation has been performed on the touch panel 108 based on the notified information.

  Regarding the move, the moving direction of the finger or pen moving on the touch panel 108 is also determined for each vertical component / horizontal component on the touch panel 108 based on the change in position coordinates. When touch-up is performed on the touch panel 108 through a certain move from touch-down, it is determined that a stroke has been drawn. The operation of drawing a stroke quickly is called a flick. The flick is an operation of quickly moving a certain distance while touching the finger on the touch panel 108 and releasing it, in other words, an operation of quickly tracing the touch panel 108 with a finger. When it is detected that a movement has been performed at a predetermined speed or more over a predetermined distance and a touch-up is detected as it is, it is determined that a flick has been performed. Further, when it is detected that the movement has been performed at a predetermined distance or more at a speed lower than the predetermined speed, it is determined that the drag has been performed.

  The mode control task executed by the CPU 109 operates as follows. That is, the operation mode of the imaging apparatus 100 is switched according to an instruction from the operation unit (operation key 107 or touch panel 108), a request from another task, or a change in an internal state managed by the mode control task itself, and notification of each task event To do.

  The imaging apparatus 100 according to the present embodiment includes a “drawing mode (drawing mode)” as one of operation modes. The “drawing mode” is an operation mode in which the user can draw an arbitrary picture by superimposing it on a photographed image or a reproduced image. In the “drawing mode”, hand-drawn input is possible for drawing with a pen of an arbitrary thickness and color or a stamp having an arbitrary shape at the touch-on position. In the “drawing mode”, hand-drawn input (touch animation input) for superimposing a particle animation such as a star or a note on the touch-on position is possible.

  Next, with reference to FIGS. 4 and 5, the operation of the display control process executed by the CPU 109 as the display control task and the mode switching process executed as the mode control task will be described. 4 and FIG. 5, unless otherwise specified, the CPU 109 reads the program from the program / data storage unit 110, expands it in the primary storage unit 103, and executes the expanded program. Realized.

  When the user activates the imaging device 100 and sets the operation mode to the moving image shooting mode, the imaging device 100 enters a shooting standby state and starts the shooting standby process of FIG. First, in step S401, the CPU 109 performs initial settings, and the mode control task controls the initial operation mode to be the normal shooting mode.

  In step S <b> 402, the display control unit 111 displays image data in the entire display area of the LCD panel 112 (hereinafter also referred to as “full screen display”). In the present embodiment, it is assumed that the display area of the LCD panel 112 and the position detection area of the touch panel 108 are substantially the same.

  In step S403, the display control unit 111 updates the display screen according to the operation mode. In the normal shooting mode, as shown in FIG. 6A, the LCD panel 112 displays a through display image (first image) (first image) (displayed in real time as an image captured by the camera unit 101). Live view image) is displayed. As OSD data, various icons such as a menu button and a battery remaining amount display are superimposed and displayed.

  In step S404, the CPU 109 determines whether an instruction to switch to a drawing mode (drawing mode) has been input. The instruction to switch to the drawing mode can be made by the user selecting the item of the drawing mode from the menu items displayed from the menu button displayed in the normal shooting mode. If an instruction to switch to the drawing mode is input, the process proceeds to S409, and if not, the process proceeds to S405.

  In S <b> 405, the CPU 109 sets the drawing mode to be automatically activated when the display unit 113 is inverted and stored (see FIG. 3C) based on the setting content stored in the program / data storage unit 110 (drawing mode). It is determined whether or not (automatic start setting) is ON. In the present embodiment, the imaging apparatus 100 can set the drawing mode automatic activation setting in advance according to a user instruction. This setting can be selected by the menu item of the menu button described above. The setting contents are stored in the program / data storage unit 110. If it is determined in S405 that the drawing mode automatic activation setting is ON, the process proceeds to S406, and if not, the process returns to S403.

  In step S <b> 406, the CPU 109 acquires the state of the display unit 113 (the orientation and position of the display unit 113 with respect to the main body unit 114) from the panel state detection unit 106.

  In step S407, the CPU 109 determines whether there is a state change based on the state of the display unit 113 acquired in step S406. If there is a state change, the process proceeds to S408, and if there is no state change, the process returns to S403.

  In step S408, the CPU 109 determines whether or not the display unit 113 is in the reverse storage state based on the state of the display unit 113 acquired in step S406. If the display unit 113 is in the reverse storage state, the process proceeds to S409, and if not, the process returns to S403.

  The process of S409 is executed when it is determined in S404 that an instruction to switch to the drawing mode is input, or when it is determined in S408 that the display unit 113 is in the reverse storage state. In step S409, the mode control task executed by the CPU 109 performs control so that the operation mode becomes the drawing mode.

  In step S410, the CPU 109 performs a drawing mode process. Details of the drawing mode process will be described later with reference to FIG. When the drawing mode process ends, the process proceeds to S411.

  In step S411, the mode control task executed by the CPU 109 performs control so that the operation mode becomes the normal shooting mode. Further, the display control unit 111 displays image data (through display image) in the entire display area of the LCD panel 112. When a drawing image is drawn in the drawing mode process of S410, the image data displayed in S411 includes an enlarged drawing image (details will be described in S513 of FIG. 5). Thereafter, the process returns to S403.

  Even if the operation mode is switched to the drawing mode in S409, the shooting standby state in the normal shooting mode started in S401 is continued. Therefore, although the operation mode after switching in S409 should be strictly referred to as “normal shooting and drawing mode”, it is simply referred to as “drawing mode” for the sake of simplicity.

  In FIG. 4, the CPU 109 switches the operation mode between the normal shooting mode and the drawing mode (S409 and S411). However, the CPU 109 may switch the operation mode between modes other than the normal shooting mode, for example, a reproduction mode and a drawing mode. In this case, even if the operation mode is switched from the reproduction mode to the drawing mode, the image reproduction is continued. Therefore, the “drawing mode” here should be strictly called “reproduction and drawing mode”. However, the “normal shooting and drawing mode” or the “reproduction and drawing mode” must be a mode (drawing mode) in which the user can draw. Therefore, in the present embodiment, all modes are simply referred to as “drawing modes” unless particularly required to be distinguished.

  Next, details of the drawing mode process in S410 of FIG. 4 will be described with reference to FIG. First, in S501, the mode control task executed by the CPU 109 performs control such that the display screen of the LCD panel 112 becomes the main screen in the drawing mode. As a result, the display control unit 111 reduces and displays the image data (through display image) so as to fit in the central area (see FIG. 1) of the LCD panel 112 (so as not to overlap the peripheral area). As an example, as illustrated in FIG. 6B, the display control unit 111 displays a reduced image obtained by reducing the image data (through display image) near the left end of the central region of the LCD panel 112. Further, the display control unit 111 displays the OSD data (third image) of the touch buttons that can be selected by touching on the right side of the image data (reduced image) reduced as illustrated. In the present embodiment, the OSD data touch buttons shown in FIG. 6B are “drawing mode end button”, “tool selection button”, “touch animation button”, and “camera image freeze button” in order from the top. is there. The “tool selection button” is used for selecting a tool such as a line drawing, a stamp, and an eraser tool, and indicates the selected tool. The “touch animation button” is used to animate the display object selected by the user. The “camera image freeze button” is used to temporarily stop the camera image and record the state as a moving image. Detailed contents regarding the display positions of the image data and the OSD data will be described later.

  In step S502, the CPU 109 determines whether there is touch detection. If there is touch detection, the process proceeds to S503. If there is no touch detection, the determination in S502 is repeated until a touch is detected.

  In step S503, the CPU 109 determines whether or not the position (coordinates) detected in touch in step S502 is within the reduced image data area shown in FIG. If the touch position is within the image data area, the process proceeds to S508; otherwise, the process proceeds to S504.

  In step S504, the CPU 109 determines whether or not the touch position detected in step S502 is within the touch area of any one of the touch buttons illustrated in FIG. If the touch position is within the touch area of the touch button, the process proceeds to S505, and if not, the process returns to S502.

  In step S505, the CPU 109 determines whether or not the button at the touch position detected in step S502 is a “drawing mode end button”. When the button at the touch position is the “drawing mode end button”, the CPU 109 ends the drawing mode and advances the process to step S411 in FIG. If the button at the touch position is not the “drawing mode end button”, the process proceeds to S506.

  In step S506, the CPU 109 performs screen transition according to the button at the touch position. For example, when a “tool selection button” is touched, a menu related to tool selection is displayed as shown in FIG. In the example of FIG. 6C, “return button”, “line drawing button”, “stamp button”, and “eraser button” are displayed in order from the top. The “return button” is a button for returning to the previous menu (in this case, the main screen of the drawing mode shown in FIG. 6B). The “line drawing button” is a button for selecting a tool for drawing a line at a position touched by the user. The “stamp button” is a position touched by the user in advance of shape data (for example, a heart shape) selected by the user. This button is used to select a tool to be placed. The “eraser button” is a button for selecting a tool for deleting drawing data input by handwriting.

  Although not shown in the present embodiment, after the user selects each button, the display control unit 111 further selects, for example, the thickness and color of the line, the color of the stamp, the size of the erased area of the eraser, and the like. The submenu of is displayed. It is also possible to arrange buttons having other functions not shown in this embodiment. Further, in some selection menus such as color selection, various buttons can be displayed superimposed on the image data.

  In step S507, the CPU 109 determines whether or not the “return button” for returning to the main screen of the drawing mode shown in FIG. 6B has been touched on the screen shown in FIG. If the “return button” is touched, the process returns to S502. If the “return button” is not touched, the determination in S507 is repeated until the “return button” is touched. In parallel with the determination in S507, the CPU 109 performs various processes that can be received and executed on the current screen.

  On the other hand, if it is determined in S503 that the touch position is within the image data area, the process of S508 is performed. In step S <b> 508, the CPU 109 acquires whether the selected drawing input state is a hand-drawn input state or a touch animation state, and also acquires settings corresponding to each input state. For example, when the “tool selection button” in FIG. 6B is selected, the selected drawing input state is a hand-drawn input state. In this case, the CPU 109 also acquires information on the type of tool selected by touching the “line drawing button”, “stamp button”, or “eraser button” exemplified in the description of S506, the thickness and color of the line, and the like.

  In step S509, the CPU 109 acquires position information (touch position) touched by the user.

  In S510, the CPU 109 displays a drawing image (second image) (drawing image) corresponding to the drawing input state acquired in S508 at the touch position acquired in S509. As an example, a drawing image as shown in FIG. 7A is displayed. Note that the drawing image is displayed by a process of superimposing and displaying the picture drawn by the user on the reduced image data using the OSD.

  In S511, the CPU 109 calculates a corrected touch position corresponding to the original image before reduction shown in FIG. 6A based on the touch position acquired in S509.

  In S512, the CPU 109 generates a drawing image (enlarged drawing image) corresponding to the corrected touch position calculated in S511. The enlarged drawing image generated here is stored in the primary storage unit 103, but is not displayed on the LCD panel 112 at this stage. Note that generation of the enlarged drawing image may be performed by enlarging the drawing image (see FIG. 7A) displayed in S510 instead of performing based on the corrected touch position. In this case, the CPU 109 enlarges the drawing image shown in FIG. 7A by the reciprocal of the reduction rate of the image data in S501. Whether the drawing image is generated based on the corrected touch position or the drawing image shown in FIG. 7A is enlarged, an enlarged drawing image corresponding to the reduction ratio of the reduced image is obtained. It is done.

  In step S513, the CPU 109 superimposes the enlarged drawing image generated in step S512 on the original image (through display image / live view image in the present embodiment, which is a reproduction image if processing at the time of reproduction). The original image on which the enlarged drawing image is superimposed is stored in the primary storage unit 103, but is not displayed on the LCD panel 112 at this stage. The display of the original image on which the enlarged drawing image is superimposed is performed after the drawing mode ends and the display image returns to the full screen display (see S411 in FIG. 4). FIG. 7B shows an original image on which an enlarged drawing image is superimposed. As can be understood from the comparison with FIG. 7A, the number of pixels of the enlarged drawing image increases in accordance with the size of the original image. FIG. 7B is a simplified diagram showing how the number of pixels increases only in the horizontal direction, but in actuality, the number of pixels in the vertical direction also increases as necessary.

  Note that the processing of S511 to S513 may be performed at a timing different from the timing illustrated in FIG. For example, the CPU 109 may perform the processes of S511 to S513 at the timing when the display image returns to the full screen display in S411 of FIG. 4 after the drawing mode ends.

  Next, in S514, the CPU 109 determines whether there is a touch-up detection. If no touch-up is detected, the process returns to S509, and the same process is repeated for the next touch position. That is, a straight line drawing image as shown in FIG. 7A is drawn by moving the touch position while the user touches the touch panel 108, and the CPU 109 repeats the processing of S509 to S514 during that time. If touch-up is detected in S514, the process proceeds to S515.

  In step S515, the CPU 109 determines whether there is touch detection. If there is touch detection, the process returns to S509. If there is no touch detection, the process proceeds to S516. In S516, the CPU 109 determines whether or not a predetermined time has elapsed since the touch-up was detected in S514. The fixed time in this embodiment is, for example, 1 second. If the fixed time has not elapsed, the process returns to S515, and if the fixed time has elapsed, the process returns to S502. By performing the processing of S515 and S516, for example, when the user's finger is only momentarily separated from the touch panel 108, it is considered that there has been substantially no touch-up.

  Through the above processing, for example, a drawing image as shown in FIG. 7A is drawn in the display area of the LCD panel 112. When the “drawing mode end button” is touched (see S505), the operation mode is switched from the drawing mode to the normal shooting mode, and the display on the LCD panel 112 returns to the full screen display (see S411 in FIG. 4). ). Accordingly, the display of the image data (see FIG. 7B) generated by superimposing the enlarged drawing image generated in S513 is started. Although OSD data is not shown in FIG. 7B, the CPU 109 may perform superimposing display of the OSD data in S411 of FIG.

  Incidentally, in the description of FIGS. 4 and 5, it is assumed that the imaging apparatus 100 is in the shooting standby state. However, the user instructs the imaging apparatus 100 to start recording a moving image by pressing a moving image recording start button included in the operation key 107 at an arbitrary timing during the processing of FIGS. 4 and 5. Also good. When an instruction to start recording a moving image is issued, the CPU 109 starts recording a moving image shot by the camera unit 101. If hand-drawn drawing has been performed in the drawing mode at the start of video recording, the drawn drawing image (line, stamp, etc.) is superimposed on the captured camera image (subject image). The recorded video is recorded in the moving image storage unit 105 as a moving image. In other words, during moving image recording, the image generated in S513 (see FIG. 7B) is not displayed but is recorded in the moving image storage unit 105.

  Next, the arrangement of image data and OSD data on the main screen (see FIG. 6B) in the drawing mode displayed in S501 will be described in detail. In the present embodiment, as shown in FIG. 8, an area (center area) where sufficient position detection accuracy can be obtained for inputting a hand-drawn line or the like on the touch panel 108 is an area inside the distance X from the end of the position detection area. Suppose that The distance X is 2 mm, for example. In FIG. 8, the end of the position detection area is indicated by a broken line, and the end of the center area is indicated by a two-dot chain line.

  In general, the vertical / horizontal length ratio of image data is a constant value determined according to the device to be photographed. This value is, for example, 16: 9, and generally the vertical and horizontal lengths are not the same. Therefore, if the image data is reduced while maintaining the aspect ratio, the length reduction in the longitudinal direction becomes larger than the length reduction in the short direction. For example, as shown in FIG. 8, when the image data is reduced so as to be as large as possible within the central area, the length decreases in the short direction by “2X”, whereas the length in the longitudinal direction decreases. Decreases by “X + C” (C> X). On the other hand, the distance X from the end of the position detection region to the end of the central region is generally the same value in both the vertical and horizontal directions. Accordingly, when the reduced image data is displayed near the left end of the central area, an empty area with a width “C−X” is generated at the right end of the central area. Since this empty area is included in the central area, the position detection accuracy is higher than that of the peripheral area. Therefore, as shown in FIG. 6B, by arranging the OSD data of the touch button in this empty area, the central area with high position detection accuracy can be effectively used.

  It is not necessary to bring the reduced image data completely to the end of the central area. Generally speaking, if the reduced image data is shifted from the center of the central area by a predetermined distance in the longitudinal direction, an empty area having a width corresponding to the shifted distance can be obtained. In the first place, it is not essential to shift the reduced image data in the longitudinal direction. Even if the image data after reduction is not shifted, a free area is generated, so that OSD data can be arranged there.

  For example, as shown in FIG. 9, OSD data that does not require touching or OSD data that does not require so high position detection accuracy even when touching may be displayed in the peripheral area. Thereby, the entire display area can be used more effectively than the example shown in FIG. In FIG. 9, as OSD data that does not require so high position detection accuracy even if a touch is required, the touch button is displayed larger than the free area in the central area (that is, with a size that protrudes from the free area to the peripheral area). Has been. Thereby, the visibility of the touch button is improved. Although some areas of the touch button are included in the peripheral area where the position detection accuracy is low, since each button is displayed with a sufficient size and interval, the accuracy of the button selection is not so much impaired. In FIG. 9, shooting time information and battery information are displayed as OSD data that does not require touching.

  In the present embodiment, the display control unit 111 arranges a black background in the display area of the LCD panel 112 where no image data is displayed, and displays OSD data that does not require touching in white. To do. This improves the visibility of OSD data that does not require touching.

  As described above, according to the first embodiment, the imaging apparatus 100 displays image data in the display area of the LCD panel 112, and the central area is changed according to the operation mode being switched to the drawing mode. The image data is reduced and displayed so as to fit in the image. As a result, the user can easily draw in the display area in the drawing mode, and the image data is displayed in a wide area including the peripheral area in other modes, so that the visibility of the image data is improved. . In particular, accurate drawing can be performed as intended by the user up to the end of the image.

<Modification>
In the above description, it is assumed that the user performs hand-drawn input using the touch panel 108 in the drawing mode. However, the present invention detects other types of pointing devices (position input instructions) such as a mouse or a space gesture detection device (for example, a wand that detects a three-dimensional position coordinate and transmits it to the imaging device 100). It can also be applied to devices. For example, when a mouse is used as a pointing device, there is no problem of a decrease in position detection accuracy in a peripheral area such as a touch panel. However, in the peripheral area, even if the position detection accuracy does not decrease, for example, the visibility of the image data decreases due to the restriction of the viewing angle of the LCD panel 112, and the operability of the pointing device deteriorates for the user. there is a possibility. In such a case, it is more difficult for the user to draw in the peripheral area than in the central area. Therefore, even when the present invention is applied to a pointing device of a different type from the touch panel, the effect that the user can easily draw in the drawing mode can be obtained as in the case of the touch panel.

  In the case of a touch panel, both designation and input of a position are performed by one operation called touch. Accordingly, when the user touches a desired position on the touch panel 108, a position input instruction for inputting the touched position (position on the display area) is detected by the CPU 109, and drawing is performed. On the other hand, in the case of a mouse, for example, the position is specified by an operation of moving the mouse, and the position is input by an operation of clicking a mouse button (for example, a left button). Accordingly, a position input instruction is not generated when the user simply moves the mouse, and a position input instruction for inputting a position corresponding to the mouse cursor is detected and drawn at the timing when the button is clicked.

  In the example of FIG. 6B, the image data is arranged on the left side and the touch buttons are arranged on the right side, but this arrangement may be reversed. Further, the arrangement of the image data and the OSD data may be changed according to the type of the drawing mode (“normal shooting and drawing mode” or “reproduction and drawing mode”). For example, in the case of the “normal shooting and drawing mode”, the display control unit 111 arranges image data on the hinge unit 120 side (the direction of the first end), and the opposite side (second image) of the hinge unit 120. Place the touch button in the direction of the edge of In the example of FIG. 3B, the touch button is arranged on the left side. In this case, since the user can touch the touch button without covering the image data with his / her hand, the user is not prevented from confirming the image being shot. On the other hand, in the “reproduction and drawing mode”, the display control unit 111 arranges the OSD data on the hinge unit 120 side (the direction of the first end), and the opposite side (second display) of the hinge unit 120. Image data is arranged in the direction of the edge. In the example of FIG. 3B, the image data is arranged on the left side. In this case, since the image data is arranged at a position far from the hinge portion 120, the visibility of the image data is improved and the user can easily perform hand-drawn input on the image data.

  The imaging apparatus 100 may change the arrangement of the OSD data according to the aspect ratio of the image data to be displayed. For example, in the case of an electronic device having a vertically long display unit and image data such as a mobile phone, OSD data and reduced image data are arranged vertically.

  Note that the control of the CPU 109 may be performed by one piece of hardware, or the entire apparatus may be controlled by a plurality of pieces of hardware sharing the processing.

  Although the present invention has been described in detail based on the preferred embodiments thereof, the present invention is not limited to these specific embodiments, and various forms without departing from the gist of the present invention are also included in the present invention. included. Furthermore, each embodiment mentioned above shows only one embodiment of this invention, and it is also possible to combine each embodiment suitably.

  In the above-described embodiment, the case where the present invention is applied to an imaging apparatus has been described as an example. However, this is not limited to this example, and any display control apparatus that accepts hand-drawn input using a pointing device. Applicable. That is, the present invention can be applied to a personal computer, a PDA, a mobile phone terminal, a portable image viewer, a printer device including a display, a digital photo frame, a music player, a game machine, an electronic book reader, and the like.

[Other Embodiments]
The present invention can also be realized by executing the following processing. That is, software (program) that realizes the functions of the above-described embodiments is supplied to a system or apparatus via a network or various storage media, and a computer (or CPU, MPU, etc.) of the system or apparatus reads the program. It is a process to be executed.

  DESCRIPTION OF SYMBOLS 100 ... Imaging device 101 ... Camera part 102 ... Video processing part 103 ... Primary storage part 104 ... Encoder / decoder part 105 ... Movie storage part 106 ... Panel state detection part 107 ... Operation key 108 ... Touch panel 109 ... CPU 110 ... program / data storage unit 111 ... display control unit 112 ... LCD panel

Claims (13)

A display control device,
Display control means for displaying a first image in a display area including a central area and a peripheral area of the display device;
Switching means for switching the operation mode of the display control device between the drawing mode and another mode;
Detecting means for detecting a position input instruction for inputting a position on the display area;
With
When the operation mode is Ru is switched from the other mode to the drawing mode, the display control means, a reduced image of the first image displayed to fit in the central region, instead of the first image ,
When the operation mode is the position input instruction is discovered while in the drawing mode, the display control means, display control and displaying a second image at a position corresponding to the position input instruction apparatus. When the operation mode is Ru is switched from the drawing mode to the other mode, the display control means, the first image displayed in the display area in place of the reduced image, the second in the reduced image corresponding to the position of the image, the position in the first image, the display control according to prior Symbol second image to claim 1, characterized in that the enlarged and displayed than the display magnification in the drawing mode apparatus. When the operation mode is Ru is switched from the other mode to the drawing mode, the display control unit, a free area where the reduced image is not displayed within the central region, and the display means displays a third image The display control apparatus according to claim 1 or 2. The third image includes an icon that can be selected through the position input instruction,
The display control apparatus according to claim 3, wherein the display control unit displays the third image with a size that protrudes from the empty area to the peripheral area. 5. The display control device according to claim 3, wherein the display control unit displays the reduced image at a position shifted from the center of the central region by a predetermined distance in the longitudinal direction of the central region. Photographing means for photographing a moving image as the first image;
Recording means for recording the moving image;
Further comprising
The recording unit corresponds to a position of the second image in the reduced image when the moving image taken while the display control unit displays the reduced image and the second image is recorded. the display control device according to claim 1 or 2, characterized in that the recording by superimposing pre Symbol second image at a position in the video. The display control device is connected to the first end of the first end and the second end of the display device corresponding to the longitudinal direction of the display area,
When the operation mode is the drawing mode and the photographing means is photographing a moving image, the display control means is at a position shifted from the center of the central region by a predetermined distance in the direction of the first end. The reduced image is displayed so that the position of the center of the reduced image is positioned , and the third image is formed in an empty area where the reduced image is not displayed in the central area, which is generated in the direction of the second end. The display control apparatus according to claim 6, wherein: Reproducing means for reproducing the moving picture recorded by the recording means as the first image,
When the operation mode is the drawing mode and the playback means is playing back a moving image, the display control means is at a position shifted from the center of the central region by a predetermined distance in the direction of the second end. The reduced image is displayed so that the center position of the reduced image is positioned , and the third image is formed in an empty area where the reduced image is not displayed in the central area, which is generated in the direction of the first end portion. The display control apparatus according to claim 7, wherein: The third image includes an icon that can be selected through the position input instruction,
9. The display control apparatus according to claim 7, wherein the display control unit displays the third image with a size that protrudes from the empty area to the peripheral area. The display control device according to claim 1, wherein the detection unit includes at least one of a touch panel, a mouse, and a space gesture detection device. A control method for a display control device, comprising:
A display control step in which the display control means of the display control device displays the first image in a display region including a central region and a peripheral region of the display device;
A switching step in which the switching means of the display control device switches the operation mode of the display control device between the drawing mode and another mode;
A detection step in which the detection means of the display control device detects a position input instruction for inputting a position on the display area;
With
When the operation mode is Ru is switched from the other mode to the drawing mode, wherein in the display control step, a reduced image of the first image displayed to fit in the central region, instead of the first image ,
When the operation mode is the position input instruction is discovered while in the drawing mode, and in the display control step, the control method characterized by displaying a second image at a position corresponding to the position input instruction . The program for functioning a computer as each means except the detection means of the display control apparatus of any one of Claims 1 thru | or 10. A computer-readable recording medium storing a program for causing a computer to function as each means other than the detection means of the display control device according to any one of claims 1 to 10.

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