JP2013250841A - Image display device and image display method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an image display device that can display a desired graphic expression even when the number of display layers is limited.SOLUTION: The image display device comprises: a display part 12 that displays at least two display layers; an instruction part 18 that instructs a screen transition; a comparison part 4 that compares the number of total display layers totalizing the number of display layers required for displaying an image before the screen transition is made and the number of display layers required for displaying an image after the screen transition is made with the number of display layers owned by the display part; a layer integration part 16 that integrates at least two layers contained in the image before the screen transition is made and/or at least two layers contained in the image after the screen transition is made when the number of display layers owned by the display part is less than the number of total display layers to generate a synthesis layer; a display control part 4 that controls the display part to display the image in transition by use of the synthesis layer; and a layer division part 16 that divides the synthesis layer generated by the layer integration part into a layer before integrated by the layer integration part.

Description

  The present invention relates to an image display device and an image display method.

  There is known an image composition device that composes a single screen by superimposing a plurality of display layers (see, for example, Patent Document 1). In this image composition device, in order to reduce the load on the system, the validity / invalidity of a plurality of display layers is determined, and only valid display layers are synthesized.

JP 2007-241738 A

  By the way, when the number of display layers is limited, it may be difficult to use a desired graphic expression such as an animation effect when the screen is changed.

  An object of the present invention is to provide an image display device and an image display method capable of performing a desired graphic expression even when the number of display layers is limited.

  The image display device of the present invention, when a screen transition instruction is performed by the display unit that displays at least two display layers, an instruction unit that instructs transition of the screen displayed on the display unit, and the instruction unit, The number of the display layers necessary for displaying the image before the screen transition and the number of the display layers necessary for displaying the image after the screen transition, and the display included in the display unit A comparison unit that compares the number of layers, and at least two layers or / and screen transitions included in an image before screen transition when the number of display layers included in the display unit is smaller than the number of necessary layers A layer integration unit that generates a composite layer by integrating at least two layers included in a later image, and an image displayed on the display unit using the composite layer from the image before the screen transition to the screen transition And gradually display control unit for shifting the image after, characterized in that it comprises a front of the layer dividing unit for dividing the layer to consolidate the composite layer produced by the layer-merging portion by the layer-merging portion.

  In addition, the image display method of the present invention is necessary to display the image before the screen transition when a screen transition instruction is made to transition the screen displayed on the display unit that displays at least two display layers. A comparison step for comparing the number of display layers and the number of display layers required for displaying the image after the screen transition, and the number of display layers included in the display unit; When the number of display layers of the display unit is smaller than the number of layers, at least two layers included in the image before the screen transition and / or at least two layers included in the image after the screen transition are integrated. A layer integration step for generating a composite layer, and an image displayed on the display unit using the composite layer is gradually transitioned from an image before screen transition to an image after screen transition. A screen transition step, the synthetic layer generated in the layer-merging step, characterized in that it comprises a layer dividing step of dividing before the layer integration in the layer-merging step.

  According to the image display device and the image display method according to the present invention, it is possible to perform desired graphic expression even when the number of display layers is limited.

It is a block diagram which shows the system configuration | structure of the camera which concerns on embodiment. It is a flowchart which shows the screen transition process of the camera which concerns on embodiment. It is a figure which shows the layer before the image transition of the camera which concerns on embodiment, and after an image transition. It is a figure which shows the synthetic | combination layer of the camera which concerns on embodiment.

  A camera according to an embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram illustrating a system configuration of a camera according to an embodiment. As shown in FIG. 1, the camera 2 is constituted by a microprocessor or the like, and includes a CPU 4 that comprehensively controls each unit of the camera 2. The CPU 4 is connected to the bus 6. The bus 6 is integrated by a ROM 8 that stores programs executed by the CPU 4, a program to be operated, photographed image data read from a recording medium 24 described later, and an image processing unit 16 described later. A RAM 10 that temporarily stores composite layers and the like, a display control unit that performs display control of the LCD display unit 12 that displays at least two display layers and displays a captured image, a through image, a menu for performing various settings, and the like. 14. Recording and reading of captured image data and the like on the image processing unit 16, the operation unit 18, the buffer memory 22, and the recording medium 24 for generating a composite layer by integrating images displayed on the LCD display unit 12 A recording I / F 26 for controlling the above is connected. Here, the operation unit 18 is a power switch for turning on / off the power of the camera 2, a release button for instructing to start shooting a moving image or a still image, a menu for displaying a menu or the like on the LCD display unit 12. Selection of buttons, menu items, etc., cross keys operated at various settings, OK button for selection of menu items, etc. and confirmation operations for various settings, shooting based on shot image data recorded on recording medium 24 A playback button for displaying an image on the LCD display unit 12 is included.

  The image signal output from the image sensor 28 is converted from an analog signal to a digital signal in the signal processing unit 30 and output to the CPU 4. The CPU 4 temporarily stores the digital signal image data output from the signal processing unit 30 in the buffer memory 22. Further, the CPU 4 generates through image data displayed on the LCD display unit 12. Here, the imaging device 28 is configured by a CCD, a CMOS, or the like, and images light from a subject through a photographing lens (not shown).

  Next, the screen transition process of the camera according to the embodiment will be described with reference to the flowchart shown in FIG. When a screen transition instruction for transitioning the screen displayed on the LCD display unit 12 is made via the operation unit 18, the CPU 4 determines the required number of layers and the number of display layers (number of usable layers) of the LCD display unit 12. Compare (step S1). Here, the number of necessary layers is the total number of the display layers necessary for displaying the image before the screen transition and the number of display layers necessary for displaying the image after the screen transition.

  Further, as a screen transition instruction, when the menu button is operated and a menu is displayed when a captured image or a through image is displayed on the LCD display unit 12, the menu is displayed on the LCD display unit 12. When a menu item confirmation operation is performed using the OK button and an item included in the menu item for which the confirmation operation has been performed is displayed, the item included in the menu item is displayed on the LCD display unit 12. When a confirmation operation using the OK button is performed in a state where “return” is selected using the cross key, and the menu is displayed, the release button is pressed halfway when the menu is displayed on the LCD display unit 12. When the operation is performed and the through image is displayed, the playback button is operated when the menu is displayed on the LCD display unit 12, and the playback image is displayed. When displaying, operation of the right or left button of the cross key is performed when it is displayed photographed image on the LCD display section 12 (reproduced image), and the like when displaying the previous or next captured image.

  When the number of usable layers is smaller than the required number of layers (step S1: Yes), the CPU 4 includes the image processing unit 18 in at least two layers included in the image before the screen transition and / or in the image after the screen transition. The composite layer is generated by integrating at least two layers, and the composite layer is stored in the RAM 10 (step S2). At this time, when integrating the layers included in the image after the screen transition, the CPU 4 stores, in the RAM 10, layer data indicating the configuration of the layer before generating the composite layer, the icon display position, and the like for the image after the screen transition. Remember.

  For example, as shown in FIG. 3, the LCD display unit 12 has two display layers, an upper display layer and a lower display layer, and layers 32, 34, and A case where the layers required for displaying the image after the screen transition are 36 and 38 will be described. In this case, the number of usable layers is 2, and the required number of layers is 4. Therefore, as shown in FIG. 4, the CPU 4 causes the image processing unit 18 to generate the composite layer 40 in which the layers 32 and 34 are integrated, and also generates the composite layer 42 in which the layers 36 and 38 are integrated.

  Next, the CPU 4 controls the display control unit 14 to perform display processing for the next screen (step S3). At this time, the display control unit 14 gradually transitions to the next screen using a switching effect such as an animation effect. The display control unit 14 is, for example, slide-in, slide-out, box wipe-in for gradually displaying the screen from the outside to the center of the screen, box wipe-out for gradually displaying the screen from the center to the outside of the screen, and the like. The switching effect can be used.

  For example, with the composite layer 42 displayed on the lower display layer of the LCD display unit 12 as shown in FIG. 4, the composite layer 40 in the upper display layer of the LCD display unit 12 is displayed from the right side to the left side as indicated by an arrow. Slide in. 4 shows a case where the menu button is operated when a captured image or a through image is displayed on the LCD display unit 12 to display the menu, and the layer 38 included in the image before the screen transition (see FIG. 3). ) Displays a captured image, and a layer 36 (see FIG. 3) displays an image quality and file name of the captured image displayed on the layer 38, an icon indicating image data protection settings, and a shooting date and time. In addition, the order of the captured images displayed on the layer 38 in the recording medium 24 may be displayed on the layer 36. For example, when 100 shot images are recorded on the recording medium 24 and the image displayed on the layer 38 is the tenth image, 10/100 is displayed. In addition, an icon indicating a menu item is displayed on the layer 32 (see FIG. 3) included in the image after the screen transition, and a background image used for the menu is displayed on the layer 34 (see FIG. 3).

  Next, the CPU 4 determines whether or not the display process for the next screen has been completed (step S4). If the next screen display process has not ended, the process shown in step S3 is continued. When the next screen display process is completed, the CPU 4 determines whether or not the layers included in the image after the screen transition are integrated in step S2 based on the layer data (step S5).

  In the case of integration in step S2, the CPU 4 causes the image processing unit 16 to divide the composite layer after the screen transition into layers before integration based on the layer data (step S6). For example, when the composite layer 40 is slid in as shown in FIG. 4, the composite layer 40 is divided so that the layer 32 is the upper display layer of the LCD display unit 12 and the layer 34 is the LCD display unit 12. Each is displayed on the lower display layer.

  If the number of usable layers is equal to or greater than the required number of layers (step S1: No), the CPU 4 controls the display control unit 14 to perform display processing of the next screen without generating a composite layer. (Step S7). At this time, similarly to the process shown in step S3, the display control unit 14 gradually shifts to the next screen using a switching effect such as an animation effect.

  According to the camera of the present embodiment, a desired graphic expression can be performed even when the number of display layers is limited, such as when there are two display layers.

  In the above-described embodiment, the case where the number of display layers included in the LCD display unit 12 is two in FIGS. 3 and 4 is shown. However, the number of display layers may be two or more. It is not limited.

2 ... Camera, 4 ... CPU, 10 ... RAM, 12 ... LCD display unit, 14 ... Display control unit, 16 ... Image processing unit, 18 ... Operation unit

Claims (4)

A display unit for displaying at least two display layers;
An instruction unit for instructing transition of the screen displayed on the display unit;
When a screen transition instruction is performed by the instruction unit, the number of the display layers necessary for displaying the image before the screen transition and the number of the display layers necessary for displaying the image after the screen transition are totaled. A comparison unit that compares the required number of layers with the number of display layers included in the display unit,
When the number of display layers of the display unit is smaller than the required number of layers, at least two layers included in the image before the screen transition and / or at least two layers included in the image after the screen transition A layer integration unit for generating a composite layer by integration;
A display control unit that gradually transitions an image displayed on the display unit using the composite layer from an image before screen transition to an image after screen transition;
An image display device comprising: a layer dividing unit that divides the composite layer generated by the layer integrating unit into the layers before being integrated by the layer integrating unit.   The image display apparatus according to claim 1, wherein the display control unit gradually transitions an image to be displayed on the display unit from an image before screen transition to an image after screen transition using an image switching effect. A storage unit that stores layer data indicating a configuration of the layer before generating the composite layer;
The image display device according to claim 1, wherein the layer dividing unit divides the composite layer based on the layer data. When a screen transition instruction is made to transition the screen displayed on the display unit that displays at least two display layers, the number of display layers necessary to display the image before the screen transition and the image after the screen transition A comparison step of comparing the number of necessary layers obtained by totaling the number of display layers necessary for displaying the image and the number of display layers included in the display unit;
When the number of display layers of the display unit is smaller than the required number of layers, at least two layers included in the image before the screen transition and / or at least two layers included in the image after the screen transition A layer integration step for generating a composite layer by integration;
A screen transition step of gradually transitioning an image to be displayed on the display unit using the composite layer from an image before screen transition to an image after screen transition;
An image display method comprising: a layer dividing step of dividing the composite layer generated in the layer integrating step into the layers before being integrated in the layer integrating step.

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