JP3515238B2 - Instruction processing unit - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an instruction processing device that performs processing based on an instruction. In particular, the present invention relates to an instruction processing device including an image display device capable of continuously executing image effects such as wipe and scroll.

[0002]

2. Description of the Related Art First, an image display device capable of continuously executing image effects such as wipe and scroll will be described. As shown in Japanese Patent Application Laid-Open No. 7-46475 (H04N5 / 265), image display devices that perform image effects such as wipe, dissolve and scroll are well known.

Japanese Patent Laid-Open No. 7-98713 (G06F17 / 30)
Also, as disclosed in Japanese Patent Application Laid-Open No. 7-110858 (G06T1 / 00), there is one that displays a part of an image on the display unit of the image display device. By the way, when it is desired to visually select a desired specific area in an image larger than the display screen of the monitor, it is convenient if the scrolling can be stopped at an arbitrary position and the scrolling can be performed again from that position.

In the past, it was difficult to specify a desired area because this function was not provided.

[0005]

DISCLOSURE OF THE INVENTION The present invention proposes an image display device which eliminates such inconvenience.

[0006]

According to the present invention, an input means (1a) for instructing start and stop of image effect processing, and a parameter (c) based on the start instruction from the input means (1a). While outputting the processing execution instruction (a) including
Based on the stop instruction from the input means (1a),
When the instruction generation means (1, 2) for outputting a processing stop instruction (b) for instructing the stop of the processing being executed and the processing execution instruction (a) are received, the processing according to the parameter (c) is started. At the same time, the processing means (4) for advancing the processing while changing the parameter (c) and stopping the processing being executed when the processing stop command (b) is received,
Display means (6, 7, 8) for displaying an image according to the processing and holding an image display state when the processing is stopped, and a parameter (c) when the processing is stopped to the command generation means (2). And a parameter transfer means (5) for inputting.

[0007]

According to the present invention, it is possible to obtain the initial value required when the processing is stopped at an arbitrary time point and the processing is restarted from this stop.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An image display apparatus according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a functional block diagram of this embodiment. The input device 1 is, for example, a computer or a dedicated device having an input unit 1a such as a keyboard input / pen input / mouse input / touch panel / trackball. When a request from the input unit 1a is received,
This is transmitted to the system control circuit 2.

The system control circuit 2 comprises a CPU and peripheral circuits such as a decoding circuit, and executes instructions a (instructions for executing image effects and image reading) and various control signals (image effects) in accordance with a request from the input device 1. Generate a stop signal b). The execution command a is composed of identification information indicating the type of command such as scroll / wipe, and parameters indicating various setting values for this process.

The image effect control circuit 4 generates an image effect control signal for the image memory 6 and an image memory selection signal for the signal control circuit 7 in accordance with the execution instruction a (identification information, parameter). Achieve image effects such as scroll and wipe. The change amount calculation circuit 5 calculates the degree of change of various image effects produced by the image effect control circuit 4. For example, in the case of wipe / scroll processing, it is the amount of movement of the displayed image, and in the case of dissolve processing, it is the image composition ratio.

The image memory 6 is a writable / readable memory such as a hard disk / RAM capable of accumulating image data. Also, this image memory 6
Three-sheet structure using VRAM memory (for convenience, memory A
Memory B and memory C are used, and the size is 1920 pixels vertically × 1035 pixels horizontally).

The signal control circuit 7 outputs an image signal to the display device 8. However, when the image memory 6 has a plurality of memory areas (A, B, C, ...) In screen units, the display screen is displayed. The memory corresponding to each pixel above is designated by an image memory selection signal from the image effect control circuit 4. For example, as shown in FIG. 4, the left half of the display screen is used to display the memory A and the right half is displayed to display the memory B.

The display device 8 is a CRT monitor, a liquid crystal monitor, a liquid crystal projector or the like. This display device 8
The image output from the signal control circuit 7 is displayed. next,
The outline of the operation of the example will be described. For example, the input unit 1a
But for scrolling [Right] [Left] [Up] [Down] [Stop]
With buttons such as, by operating this button,
The desired scroll can be selected. Of course, the operation is not limited to the button operation, and the same operation may be performed by pen input or the like.

First, the user selects an image by a multi-screen search as shown in FIG. Next, while confirming the image to be scrolled leftward while pressing the [left] button of the input unit 1a, inside the system (the user does not need to be aware), scrolling between two images from right to left is performed. To execute. That is, it becomes as shown in FIGS. Since the desired area has been passed, the user presses the [Stop] button and then the [Right] button. This device starts scrolling to the right from the position at which the scroll was interrupted.

The internal processing during the above operation will be described. First of all, a large capacity (such as an image having a capacity three times as large in the horizontal direction of the display screen size or an image having a capacity twice as large as the vertical and horizontal directions) that cannot be displayed on one screen without lowering the resolution is shown. The image is reduced and displayed as shown in FIG. A desired image is selected from this screen.

When one of the images having three times the capacity in the horizontal direction is selected, the system control circuit 2 causes the image transfer control circuit (not shown) to store the three screen images in the memory of the image memory 6. Store in A, memory B, and memory C. The images as shown in FIG. 2 are stored in each memory, but there is no continuity in display between the images, and the three images are independent.

As described above, after storing the image,
The system control circuit 2 executes the execution instruction a for displaying the representative screen.
Is output. That is, the system control circuit 2 displays "display".
And an execution instruction a consisting of the identification information indicating the "?" And a parameter meaning "pixel 0th to pixel 1919th" in the horizontal direction of the "memory A".

As a result, the image effect control circuit 4 outputs an image memory selection signal for selecting the memory A, and
An image effect control signal for reading the contents of the image A is output.
As a result, the screen of the display device 8 is displayed as shown in FIG. Next, when the user presses the [left] button of the input unit 1a, the system control circuit 2 outputs a scroll command such that the screen display changes from the image in the memory A to the image in the memory B memory C.

That is, the system control circuit 2 identifies information for instructing "scroll to the left" and "pixel 0-pixel 191" in the horizontal direction of "memory A" which is the first state.
The execution command a is output which is composed of a parameter meaning "9th" and "pixel 0th to pixel 1919th" in the horizontal direction of the last state "memory C". This execution instruction a
Is set in the image effect control circuit 4, and the scrolling continues until the scrolling ends or the [stop] button is pressed.

As a result, the image effect control circuit 4 first outputs an image memory selection signal for selecting the memory A, and at the same time, "pixel 0 to pixel 1919" of the memory A.
The image effect control signal for reading the contents of is output. Since this state is the same as the previous state, there is no change in the screen display. Next, the image effect control circuit 4 sequentially changes the read area and the image memory selection signal for scrolling.

[0021]   For example, first output "0th to 1919th" from memory A.   Outputs "1st to 1919th" from memory A, then outputs "0th" from memory B.   "2nd to 1919th" from memory A, then "0th to 1st" from memory B Power.   "3rd ~ 1919th" from memory A, then "0th ~ 2nd" from memory B Power.

[0022]   .....................   Change in this way.   .....................   "1919th" is output from memory B, then "0th to 1918th" is output from memory B.   Output "0th to 1919th" from memory B.

[0023]   "1st to 1919th" is output from memory B, then "0th" is output from memory C.   “2nd to 1919th” from memory B, then “0th to 1st” from memory C Power.   ..................... Change in this way.

・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・Finally, output "0th to 1919th" from memory C. As shown in FIG. 4, on the monitor, as shown in FIG. 4, a picture in which the memory A and the memory B are connected together as time passes.
It appears to move from right to left. During this period, the change amount calculation circuit 5 counts the scroll movement amount based on the change amount calculation signal output from the image effect control circuit 4.

When the state shown in FIG. 4 is reached because the desired image area has passed while the scrolling is being continued,
The user presses the [Stop] button on the input unit 1a. The system control circuit 2 outputs an image effect stop signal b to the image effect control circuit 4 to forcibly stop the image effect being executed. Simultaneously with the stop, the count value of the change amount calculation circuit 5 is output to the system control circuit 2 as change amount data.

The state of FIG. 4 will be described with reference to FIG.
It is assumed that "0th to 1919th" is being output from the memory A and then "0th to 956th" is being output from the memory B. All of this information may be used as variation data, but in this case, "96
It is assumed that the variation data c indicates "0th". Next, assume that the user presses the [right] button.

The system control circuit 2 generates the next scroll command with reference to the change amount data c. In other words, the system control circuit 2 identifies the identification information for instructing "scroll to the right" and the "pixels 960 to 1919" and "memory B" in the horizontal direction of the "memory A" which is the first state. "Pixel 0th to pixel 956th" in the horizontal direction,
An execution instruction a consisting of a parameter that means "pixel 0th to pixel 1919th" in the horizontal direction of the "memory A" in the final state is output.

This execution command a is set in the image effect control circuit 4, and the scrolling continues until the scrolling ends or the [stop] button is pressed. As described above, the system control circuit 2 monitors the image effect change amount data, so that the image effect can be stopped and restarted at an arbitrary position, so that the user can change an arbitrary region in a large-capacity image. Can be specified and displayed.

According to this embodiment, the image effect can be stopped at an arbitrary timing and then restarted from the stopped position interactively, so that a desired image area can be easily designated. In this example,
Take scroll as an example.
It can be applied to various image effects such as dissolve.
In the case of the dissolve process, the composition ratio is returned as change amount data, and the interruption / reprocessing is repeated at an arbitrary timing of the composition process, whereby an image having a desired composition ratio can be easily obtained.

Further, in this embodiment, when the scroll command for changing the screen display from the image of the memory A to the image of the memory B memory C is output, the system control circuit 2
Identification information for instructing "scrolling to the left", "pixel 0 to pixel 1919" in the horizontal direction of "memory A" which is the first state, and horizontal direction of "memory C" which is the last state And an execution command a consisting of a parameter that means “pixel 0th to pixel 1919th” of the above.

However, in the present application, the system control circuit 2 is
Identification information for instructing "scroll to the left", "pixel 0 to pixel 1919th" in the horizontal direction of "memory A" which is the first state, and horizontal direction of "memory B" which is the last state And an execution command a consisting of a parameter that means "pixel 0th to pixel 1919th" of "No. 0 to pixel 1919".
It is also possible to output the execution command a consisting of the "first pixel to the 1919th pixel" and a parameter that means "pixel 0th pixel to 19th 19th pixel" in the horizontal direction of the "memory C" in the final state.

In this embodiment, the change amount data is transferred to the system control circuit 2 when the processing is interrupted. However, the present application may always transfer the change amount data to the system control circuit 2. Further, the change amount data may be transferred to the system control circuit 2 only when necessary for the next processing instruction.
Further, the present invention can be applied not only to the image display device but also to a document file device and other devices that operate various images.

[0033]

According to the present invention, it is possible to interactively stop the execution process at an arbitrary timing and then restart it from the stopped position.

[Brief description of drawings]

FIG. 1 is a diagram showing functional blocks of an embodiment of the present invention.

FIG. 2 is a diagram showing a multi-screen search screen of this embodiment.

FIG. 3 is a diagram showing a memory state at the start of scrolling in this embodiment.

FIG. 4 is a diagram showing a memory state during scrolling in this embodiment.

FIG. 5 is a diagram showing an address relationship of the image memory of this embodiment.

FIG. 6 is a diagram showing an address relationship of the image memory of this embodiment.

[Explanation of symbols]

a ... Execution command (process execution command) b ... Image effect stop signal (process stop command) c ... Change amount data ( parameter ) 1 .. Input device (command generation means) 1a. Input section (input means) 2 ..System control circuit (command generation means) 4..Image effect control circuit (processing means) 5..Change amount calculation circuit ( parameter transfer means) 6..Image memory (display means) 7 ... Signal processing circuit (display) Means) 8 ... Display device (display means)

─────────────────────────────────────────────────── ─── Continuation of front page (56) References JP-A-7-170451 (JP, A) JP-A-7-334145 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) H04N 5/262-5/28 G06F 3/14 360

Claims (3)

(57) [Claims] 1. An input means (1a) for instructing start and stop of image effect processing, and based on the start instruction from the input means (1a),
The process execution instruction (a) including the parameter (c) is output, and the process stop instruction (b) that instructs the stop of the process being executed is output based on the stop instruction from the input unit (1a). Upon receiving the instruction generation means (1, 2) and the processing execution instruction (a), the processing according to the parameter (c) is started, the processing is advanced while changing the parameter (c), and When the processing stop command (b) is received, a processing means (4) for stopping the processing being executed, and a display means (6) for displaying an image according to the processing and for holding an image display state when the processing is stopped. , 7, 8) and parameter transfer means (5) for inputting the parameter (c) at the time of processing stop to the instruction generation means (2). 2. When the processing is restarted, the instruction generation means (1, 2) outputs a processing execution instruction (a) including the parameter (c) input from the parameter transfer means (5). The instruction processing device according to claim 1. 3. The parameter transfer means (5) stores the parameter (c) at the start of processing, and when the processing is stopped,
The instruction processing device according to claim 1, wherein the difference between the current parameter (c) and the parameter (c) at the time of starting the processing is input to the instruction generating means (1, 2).