Image processing apparatus and method

Details Image processing apparatus and method Image processing apparatus and method

1997-02-26

1999-02-09

Evans, Arthur G.

395116, G06K 1500

Patent

active

058705341

ABSTRACT:
When image data of one page is to be generated at once, image data are developed in units of bands, compressed, and stored. Since print processing of the compressed image data takes a long time, compression is not performed until a necessity for compressing the image data arises. In case of short memory capacity for storing image data, a band including the minimum number of objects is selected from bands included in the page and compressed. If the memory capacity is insufficient even after the compression, a band to be compressed is selected from the uncompressed bands in a similar manner. The selected band image data is compressed, and the image data is stored in the free area. A band including the minimum number of objects is less likely to be overwritten with a new object as an image. For this reason, the procedures of expansion, overwriting, and recompression can be omitted. Therefore, print processing can be performed at a high speed.

REFERENCES:
patent: 5377312 (1994-12-01), Kobayashi
patent: 5604846 (1997-02-01), Kadota

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