JPS6345682A - Picture display control system - Google Patents

Abstract

PURPOSE:To display a moving picture and the like by providing a window including a fit-in picture and a control window composed of two types of control displays specifying a fit-in part and a background part, generating a picture synthesizing the fit-in picture and its background under the control of the control window and displaying said picture through the use of the function of a window display. CONSTITUTION:A window synthesizing part 21 inputs background information from a refresh memory 2 or a save memory 6, contents in a window buffer 5 and those in a control window buffer 20, and selects information from the window buffer 5 or background information from the refresh memory 2 with a respect to each corresponding information according to information from the control window. Since a window control part 24 sequentially writes picture information that the window synthesizing part 21 selects and outputs in the specified window area of the refresh memory 2, a display part 1 displays the picture. Thus, with the aid of the window display function, the movement of an object in any profile can be easily displayed.

Description

[Detailed Description of the Invention] [Summary] This is an image display control method for inserting an image with a relatively complex outline into the background so that a moving image can be displayed.

A window containing the inset image and a control window consisting of two types of control displays for specifying the inset part and the background part are provided, and under the control of the control window, an image is generated by combining the inset image and the background, and Display using the window display function.

With this method, display of moving images and the like can be processed relatively easily.

[Industrial application field]

The present invention relates to an image display control method for displaying a moving image or the like on a display device, and for embedding an image with a relatively complex outline into a background.

[Conventional technology]

FIG. 2 is a block diagram showing an example of the configuration of a display device.

A display section 1 comprising a so-called CRT display or the like and a display control function periodically reads out image information stored in a refresh memory 2 and displays images, etc. on a display screen according to the contents.

The contents of the refresh memory 2 consist of, for example, display designation information corresponding to each dot on the display surface, and are input to the input unit 3 from the outside.
, are stored via the window control unit 4.

A rectangular area is defined on the display surface of the display unit 1 displayed in this way, and a part of the screen that is completely different from the content of the other part of the display screen can be displayed in the area, A rectangular area that performs such display is called a window.

When displaying a window, the window area is specified from the input unit 3 to the window control unit 4, and image information to be displayed on the window is loaded into the window buffer 5.

The window control unit 4 copies the image information of the window portion of the refresh memory 2 to the save memory 6, and writes the image information held in the window buffer 5 to the window portion of the refresh memory 2, thereby performing window display.

In this way, the window display function can be used to simultaneously display the results of two different processes on the same display screen, and to refer to data from the other process.

[Problem that the invention seeks to solve]

By using the window display function described above, for example, by sequentially moving the position of the window area, it is easy to create a display that shows the state in which the object image displayed in the window is moved relative to the original display. It is possible to do so.

However, as is clear when considering a moving object such as a car, the outline of the image is rarely a simple rectangle, and generally has an outline more complex than a rectangle.

Therefore, as illustrated in FIG. 3, when the image 10 of a car is moved, the background image is displayed in the window for the part of the background surrounded by the frame line 11 of the window that is not hidden by the car. It must be externally specified as part of the image along with the image aspect of the car.

However, this background image information naturally changes as the car moves, so screen information must be created for each window for each scene of movement. Even if a window display function is used for moving display, there is a problem in that relatively complicated processing is required to prepare image information for each scene.

[Means for solving problems]

FIG. 1 is a block diagram showing the configuration of the present invention.

The figure shows the configuration of a display device, in which 1 is a display section, 2 is a refresh memory, 5 is a window buffer, 6 is a save memory, 20 is a control window buffer, 21 is a window synthesis section, 23 is an input section, and 24 is a window control Department.

[For production]

When displaying a window, as in the conventional case,
A window area is designated to the window control unit 24 via the input unit 23, and the image to be displayed in the window is stored in the window buffer 5.

Also, the part to be cut out from the image in the window buffer 5,
Control window information consisting of two types of information specifying the portion where the background is displayed is stored in the control window buffer 20. .

The window control section 24 saves the image within the window frame of the refresh memory 2 in the save memory 6 as in the conventional case, and inputs it to the window composition section 21.

The window synthesis unit 21 manually inputs the background image information from the refresh memory 2 or the save memory 6, the contents of the window buffer 5, and the contents of the control window buffer 20, and stores each corresponding information in the window buffer according to the information of the control window. 5 or background information from refresh memory 2 or the like.

The window control section 24 sequentially writes the image information selected and output by the window composition section 21 into the designated window area of the refresh memory 2, so that the image is displayed on the display section l.

Using the above method, it is possible to cut out a figure with a relatively complex outline and insert it into the background using relatively simple specified information f[!
4, it becomes possible to easily display the movement of an object with an arbitrary outline by using the window display function.

〔Example〕

In FIG. 1, a human power section 23 and a window control section 24 have the same functions as the conventional input section 3 and window control section 4, except as described below.

When displaying a window, the area of the window is specified to the window control unit 24 via the input unit 23, and information about the image to be displayed in the window is stored in the window buffer 5, as in the conventional case.

An example of the window image indicated by this information is shown in Figure 4 (
a). In the figure, 12 is the entire window, and the image that is desired to be displayed as a moving object is the portion of the car shown as 13.

In that case, as shown in FIG. 4(b), a portion 14 corresponding to the image 13 of the car is
The control window information in which each dot is filled with information indicating the cutout part (indicated by l' in the figure) and the other part 15 is filled with information indicating the background part (indicated by °0'' in the figure) is It is stored in the control window buffer 20.

The window control unit 24 stores the image within the window area of the refresh memory 2 in the save memory 6 as in the conventional case, and inputs background image information to the window synthesis unit 21.

The window synthesis unit 21 inputs the background image information, the contents of the window buffer 5, and the contents of the control window buffer 20, and converts the information of each corresponding dot into the image information of the window buffer 5 according to the information of the control window. , select background information.

The window control section 24 sequentially writes the image information selected and output by the window composition section 21 into the designated window area of the refresh memo IJ 2, so that the image is displayed on the display section 1.

In the case of FIG. 4, the control window in (b) allows
”, the information to be read from the window buffer 5 is selected, and therefore the portion of the car image is written to the refresh memory 2.

Also, for the dot corresponding to "0" in the control window, the background image information is selected, and therefore the original image is saved in the refresh memory 2, so that the display with the car image embedded in the background is Obtained on the display surface.

Therefore, after that, if you simply move the specified position of the window area one by one, for example to the right side of the screen, the window buffer 5 and control buffer 20 will have the same contents,
An image of the car moving to the right of the screen is displayed.

〔Effect of the invention〕

As is clear from the above description, according to the present invention, in a display device having a window display function, a moving object can be displayed using the window display function, so that the performance of the display device is improved. It has a significant industrial effect of improving economic efficiency.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of the present invention, FIG. 2 is a block diagram of an example of a conventional configuration, FIG. 3 is an explanatory diagram of window display, and FIG. 4 is an explanatory diagram of a control window. In the figure, 1 is a display unit, 2 is a refresh memory, and 3 is a display unit.
．． 23 is a human power section, 4.24 is a window control section, 5 is a window buffer, 6 is a save memory, 20 is a control window buffer, and 21 is a window composition section.

Claims (1)

[Claims] A window that displays a specified image within a specified window of a display surface that displays an arbitrary background image, and suppresses display of the background image within the window while displaying the specified image. A display device having a display means (24), comprising means (5) for holding image information of a window display, and at least one of two types of control displays, a first and a second control display, the display having the same shape as the window. means (20) for storing control window information of the control window; a portion of the image information corresponding to a first control display of the control window; and a second control display of the control window of the background image to be suppressed; means (21) for composing an image from parts corresponding to
), and the window display means (24) displays the constructed image.
), an image display control method comprising means for inputting the specified image to the image display device.