JPS6363281A - Picture display device - Google Patents

Abstract

PURPOSE:To display a processed picture just after graphic information of one screen is completely received by serially transferring graphic information for the unit of a block from an optical disk device and applying processings including expansion and rotation to a received picture in parallel with the transfer. CONSTITUTION:The image information by eight lines that is specified from the optical disk device is serially transmitted, received by an external interface 11, and sequentially stored in an image memory 12 and simultaneously in the buffer memory of a conversion part 13. It converts the resolution of said information and executes other processings including expansion and rotation. The processed partial image information is sequentially stored in a frame memory 14, and displayed on a CRT 15. At that point, the image information of next one block is transferred to the interface 11 from the optical disk device, and the same processing is repeated. Therefore the enlarged or rotated, processed picture is generated in the frame memory 14 and displayed on the CRT 15 almost at the same time when all the information of one screen is received.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to an image display device in an electronic file device.

Conventional technology In electronic filing devices, a large amount of image information such as documents is filed in a large-capacity storage device using an optical disk, and the necessary image information is reproduced on various work stages (and terminal devices). and use it.

When a desired image is specified on the keyboard of the workstation, the image information is serially transferred from the optical disk device side.This image information is received by the image display device of the workstation and displayed on the CRT display.

In the conventional image display device, as shown in Fig. 3, the interface 1 receives image information transferred from the optical disk device in 7 real times, and the image information is displayed as is.
The next image is stored in the image memory 2.

At the same time, the received image information is sequentially transferred to the resolution converter 3.
After reducing the resolution for display, the images are sequentially stored in the frame memory 4. The contents of this frame memory 4 are CR
Displayed on T5. This display is a raw image with the received image information as it is. Normal image display devices not only display the raw image, but also enlarge or reduce the raw image, display the black and white inverted display, or display the image. It has functions such as rotating the direction. To display these processed images,
Instruct the processing details using the keyboard, etc. Then, the image information (raw image) stored in the image memory 2 is read out, and the resolution conversion section 3.degree. enlargement/reduction processing section 6. The image information is processed through the direction changing section 79, reversing section 8, etc., and the processed image information is stored in the frame memory 4 and displayed on the CRT 5.

Problems to be Solved by the Invention First, a raw image is displayed on the CRT 5, and instructions for processing such as enlargement, reduction, 2 inversion, 9 rotations, etc. are input after viewing the image, and then the processed image is displayed on the CRT 5. let If used in this way, there is no particular inconvenience with conventional image display devices.However, if you know the format of the image you want to view in advance, and you can enlarge a part of that image format υ or invert it twice If you want to quickly view processed images, conventional image display devices are extremely difficult to use. That is, once the raw image received from the optical disk device is transferred to the CRT5
After displaying on the CRT 5, the raw image in the image memory 2 is processed and then the processed image is displayed on the CRT 5.
This is because it takes a considerable amount of time for the desired processed image to appear on the CRT 5. For example, if you want to perform a document search by enlarging only a portion of a document of the same form and displaying it one after another, the sequence of communication with the optical disk device → raw image display → processed image display is performed one image at a time. If there is a considerable amount of waiting time, the efficiency of tasks such as searches will be extremely poor.

This invention was made in view of the above-mentioned conventional problems, and its purpose is to receive image information from a transmission source such as an optical disk device, and at the same time perform enlargement, reduction, inversion, rotation, etc. on the raw image. An object of the present invention is to provide an image display device that is capable of displaying processed images. an interface means for receiving the image information transferred to the interface means, and each time the image information for a predetermined line is received, the transmission source is caused to temporarily stop the transmission operation through the interface means, and the image information for the predetermined line already received is Resolution conversion, enlargement, reduction 2 inversion 9
An image converting means that performs image processing such as rotation according to instructions and cancels the above-mentioned pause when the processing is completed; a storage means that stores image information processed by the image converting means; and contents of the storage means. A display means for displaying the information is provided.

Effect: By temporarily stopping and canceling the transmission operation, the processing in the image conversion means and the transmission of image information between the transmission source and the interface means are performed in synchronization, and the processing for one screen is performed in synchronization. Immediately after receiving the image information, the image processing process ends, and the processed image can be displayed immediately. Embodiment FIG. 1 shows the hardware configuration of an image display device according to an embodiment of the present invention. , FIG. 2 is a flowchart of the main operations.

This device is connected to an optical disk device via a serial bus via a connector 10, and handshake data transmission is performed between the optical disk device and an interface 11, and requested image information is transmitted from the optical disk device to the interface 11. is transferred serially.

The apparatus also includes an image memory 12 for storing received image information as is, and an image information converter 13 for processing the raw image information, such as resolution conversion, enlargement, reduction, 2 inversions, 9 rotations, etc. A frame memory 14 for storing processed image information for display, a CRT 15 for displaying images, and a CRT control for controlling the CRT 15 and displaying the contents of the frame memory 14 on the CRT 15. A circuit 16, a keyboard 17 for inputting required image numbers, instructing image processing contents, and performing various other input operations; It is equipped with a CPU 18 that controls the system.

Among the nine processes of image information performed by the converter 13, processes such as resolution conversion, reduction and inversion can be performed serially on image information that is input serially. However, processing such as enlargement and rotation cannot be performed serially, but must be performed in units of blocks that divide the image into several parts. One block is, for example, a partial image of eight lines. To perform enlargement or rotation, eight lines of serially input image information are collected and the data is rearranged or reconstructed. In order to store data for these 8 lines, the converter 13 is equipped with a buffer memory.

Therefore, when the converter 13 only performs processing such as resolution conversion, reduction and inversion, image information can be continuously transferred from the optical disc device to the interface 11. In this case, the image information received by the interface 11 is sequentially stored in the image memory 12, and at the same time, the image information is sequentially (serially) stored in the converter 13.
The processed image information is stored in the frame memory 14. The contents of this memory 14 are displayed on the CRT 15.

Furthermore, when the converting section 13 performs processing involving enlargement or rotation, the operation of transferring image information from the optical disk device to the interface 11 is controlled in the following manner in accordance with the processing.

As shown in the flowchart of FIG. 2, eight lines of designated image information are serially transmitted from the optical disk device and received by the interface 11 (step 100). These 8 lines of data are sequentially stored in the image memory 12 and also stored in the buffer memory of the converter 13 (Stenoa" 1O1) in the 0-order converter 1.
3, processing of resolution conversion for display and other processing including enlargement or rotation are executed (step 102).

The processed partial image information is sequentially stored in the frame memory 14 and displayed on the CRT 15 (step 103.
104).

Now that one block (8 lines) of the image has been processed, at this point the next one block of image information is transferred from the optical disk device to the interface 11, and the same process as above is repeated (from step 105). Return to 100).

In this way, image information is transferred block by block, and processing is also performed at the same time. Therefore, almost at the same time that all the image information for one screen is received, a processed image including enlargement or rotation is generated in the frame memory 14, and it is transferred to the CRT1.
5.

Effects of the Invention As explained in detail above, in the image display device according to the present invention, image information is serially transferred in blocks from an optical disk device, etc., and in parallel with this transfer process, the received image is enlarged and The configuration is such that the processing results, including rotation, are applied and the processing results are displayed immediately, so you can quickly view a rotated image that is a partially enlarged version of the raw image with almost no waiting time, and you can also view documents in the same format. The task of displaying and searching the same column one after another is
This can be done much more efficiently than before.

[Brief explanation of drawings]

FIG. 1 is a block diagram of an image display device according to an embodiment of the present invention, FIG. 2 is a flowchart of the operation of its main parts, and FIG. 3 is a block diagram of a conventional image display device. 11...Interface, 13...Image information converter, 14...Frame memory, 15...CRT display, 17...Keyboard Name of attorney Patent attorney Toshio Nakao and 1 other person 1st Figure 2

Claims (1)

[Claims] Interface means is connected to a transmission source in a handshake manner and receives serially transferred image information; and every time a predetermined line of image information is received, the interface means causes the transmission source to temporarily stop the transmission operation. , an image converting means that performs image processing processing such as resolution conversion, enlargement, reduction, inversion, rotation, etc. on the received image information for a predetermined line according to the instruction contents, and releases the pause when the processing is completed; An image display device comprising a storage means for storing image information processed by the image conversion means, and a display means for displaying the contents of the storage means.