Image encoding apparatus

Details Image encoding apparatus Image encoding apparatus

1992-04-24

1998-10-06

Kelley, Christopher S.

Image analysis

Image compression or coding

Transform coding

348397, 348438, G06K 946

Patent

active

058189700

ABSTRACT:
An image encoding apparatus of this invention extracts a character/line image from a multi-value image, and substitutes image information corresponding to the extracted character/line image with substitution data based on the image information. Thereafter, the apparatus encodes the image information corresponding to the character/line image, and the remaining image information by different methods, thereby performing efficient image encoding while preserving quality of a character/line image in a multi-value image.

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