Image processing apparatus for advantageously encoding blocks of

Details Image processing apparatus for advantageously encoding blocks of Image processing apparatus for advantageously encoding blocks of

1995-03-02

1996-12-24

Johns, Andrew

Image analysis

Color image processing

Compression of color images

382239, 358539, G06K 936

Patent

active

055880690

ABSTRACT:
Method and apparatus for efficiently encoding image data of a color facsimile or the like are provided. A specific color judgment unit discriminates a specific color portion such as white or blank portion of the image data inputted from an image input unit. An orthogonal transforming process is not executed to the blank block, thereby raising an encoding efficiency. A discrimination signal is subjected to a dynamic arithmetical encoding, thereby producing code data.

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