Image processing apparatus and method

Details Image processing apparatus and method Image processing apparatus and method

1995-05-25

1998-03-03

Vu, Kim

Image analysis

Color image processing

Compression of color images

358539, 3582613, 358430, H04N 1419

Patent

active

057244413

ABSTRACT:
In an image processing apparatus and method, such a problem that the user must wait for a long time until region separation processing is completed is solved. A binary-coding unit performs binary coding of a luminance component of input color-image data. An encoding unit performs arithmetic encoding of the binary image data, and another encoding unit performs block encoding of the color-image data, and codes obtained from the two encoding units are stored in different storage units. A predetermined pair of codes read from the storage unit are decoded by decoding units. A region discrimination unit discriminates image regions of decoded binary image data, and outputs data of charcter-line-drawing regions. A color-gradation-image extraction unit extracts data of color-gradation-image regions from decoded color-image data.

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