JPS61192167A - Picture processor - Google Patents

Abstract

PURPOSE:To make it possible to obtain a new picture giving the process of a compression and a restoration sequentially on the plural of pictures that exist independently by enabling a restored data that can be obtained by the restoration of the compression data of a picture data to superpose an another picture on a picture memory. CONSTITUTION:An output from a raster generating part 1 or a raster data from outside is stored at a picture memory 2. A raster data in the picture memory 12 is read out to a compression circuit 3 and a compression data that is executed by a compression process is stored at a compression memory 4 and after that, it is restored to an original picture data by a restoring circuit 5. The restored data is outputted to an output device such as a printer etc., and also, is feedbacked to the picture memory 2. The picture memory 2 superposes a new picture data from an output data from the raster generating part 1 or from an outside raster input on the restored data in OR logic, or, the data already written on the picture memory 2 is superposed with the restored data to write it. After this superposed data is compressed at the compressing circuit 3, the restored data is taken out through the process mentioned above.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to image processing in which data obtained by compressing and restoring raster data is superimposed on other image data to generate new image data. Regarding equipment.

[Conventional technology]

As a conventional image processing device, for example, Japanese Patent Application Laid-Open No. 58-22
0567r Image Data Compression Method” and JP-A-58-
225769r image data development mechanism.The former reads binary (white, black) image data in fixed units and determines whether all bits are white or black, and if neither is white or black, the white bit A compression code of the image data is generated based on this position information and the counted value of the image data unit when all the read bits are white or black. This allows image data to be compressed at high speed.

The latter method reads a data string of a predetermined length from memory as reference data, sequentially restores it according to compressed data (data compressed and expressed in comparison with reference data), and sequentially restores this restored data. The data is written to an area of the memory that has already been read, thereby reducing the amount of memory required.

[Problem that the invention seeks to solve]

However, with conventional image processing devices, the compressed or restored data is output as is to the printer that uses it, so it is not possible to layout or edit multiple pieces of image data individually. could not.

[Means and effects for solving the problems] The present invention has the following features:
This was done in view of the above, and in order to generate new image data by superimposing the restored data on other image data, the image data stored in the image memory is compressed and restored. This data is fed back to an image memory and is provided to an image processing apparatus in which new image data can be obtained by superimposing it on other image data on the image memory.

〔Example〕

Hereinafter, the image processing device according to the present invention will be explained in detail.

FIG. 1 shows an embodiment of the present invention, which includes a raster generating section that generates image data (raster data), a raster data input from the generating section 1 or the outside, and a restoration circuit 5. an image memory 2 in which each of the restored data is stored and superimposed in a logical sum format of the two, or the restored data is superimposed on raster data that has already been input; and a compression device that compresses the image data on the image memory 2. a circuit 3, a compression memory 4 that stores the compressed data compressed by the circuit 3, and a restoration circuit 5 that restores the compressed data output from the memory 4 and outputs it to a device such as a printer, and also feeds it back to the image memory 2. It consists of

In the above configuration, raster data output from the Rask generator 1 or raster data from outside is stored in the image memory 2. The raster data in the image memory 2 is read out to the compression circuit 3, and the compressed data is stored in the compression memory 4. The compressed data is then restored to the original image data by the restoration circuit 5. The restored data output from the restoration circuit 5 is output to an output device such as a printer, and is also fed back to the image memory 2. The image memory 2 supplied with the restored data superimposes the output data of the raster generator 1 or new image data from an external Rask manual in a logical OR format, and
Alternatively, the output data of the lasque generator 1 or the data generated by the outside master's hand, which has already been written on the image memory 2, and the restored data are written in a superimposed manner. This superimposed data is compressed by the compression circuit 3, and then restored data is extracted through the processing process described above.

Here, in the case of overlay editing, the superimposition process will be explained with reference to FIG. 2 ((), (El)).

Image data A given by the raster generator 1 or by an external raster generator is written into the image memory 2 as shown in FIG. 2(a). After this data A is compressed by the compression circuit 3, it is temporarily stored in the compression memory 4, and then after the image memory 2 is rewritten with a new image B, it is restored by the restoration circuit 5. This restored data A is restored to the image memory 2 and written to the image memory 2 as shown in FIG. Output to.

FIG. 3 shows a modification of the present invention, and the same parts as in FIG. Figure 1 shows a configuration in which a fixed-form image compression memory 6 to be stored is connected in parallel to the compression memory 4, and an image editing section 7 for performing movement, copying, rotation, etc. on raster data is provided at the front stage of the image memory 2. It differs from

In the above configuration, for example, a fixed image such as a national character is stored in the fixed image compression memory 6, and the image editing section 7 performs movements, rotations, etc. on image data provided by an external raster generator or from the raster generating section 1. Add the edit,
Alternatively, a fixed image stored in the fixed image compression memory 6 can be selected, fed back via the restoration diagram 5, and placed at an arbitrary position.

Note that the image memory 2 may be smaller than the size of the image. In this case, the same processing as described above can be performed by dividing the image data into two image memories.

〔Effect of the invention〕

As explained above, according to the image processing device of the present invention, the restored data obtained by restoring the compressed data of image data can be superimposed on other image data on the image memory. By sequentially compressing and decompressing the images, a new image in which multiple images are superimposed into one can be obtained.

[Brief explanation of the drawing]

Figure 1 is a block diagram showing one embodiment of the present invention, Figure 2C
( ) and (u) are explanatory diagrams showing an example of superimposition processing according to the present invention, and FIG. 3 is a block diagram showing a modification of the embodiment of FIG. 1. Explanation of symbols 1---Raster generator, 2---Image memory, 3---1--Compression circuit, 4------
---Compressed memory, 5---Restoration circuit, 6---
・Standard image compression memory, 7-111--Image editing department.

Claims (2)

[Claims] (1) In an image processing device that reads image data from an image memory, compresses it with a compression circuit, and restores the compressed data to the original image data with a restoration circuit, other image data newly input to the image memory An image processing device comprising means for superimposing the data and the restored data output from the restoring circuit. (2) Part of the compressed data is stored in a fixed image compression memory as a plurality of predetermined image patterns, and is selectively superimposed on the image memory. The image processing device described.