05060280 is referenced by 37 patents and cites 6 patents.

There is an image processing apparatus to perform an image editing process such as to extract a part of an image or to synthesize a plurality of images. This apparatus comprises: an image information generator to generate image information; an area information generator to generate area information to extract a desired area of the image information; a coding circuit to compress and code the area information; a memory to store the area information which was compressed and coded by the coding circuit; a decoder to decode the area information in the memory; and an extracting circuit to extract the desired area of the image information on the basis of the area information which was decoded by the decoder. The coding circuit codes the area information on a unit basis of n.times.m pixels by use of a coding look-up table. The decoder also decodes the area information by use of a decoding look-up table. The image information is separated into lightness information and shape information on a unit basis of n.times.m pixels and stored. Thus, the capacity of the memory can be reduced.

Title
Masking control for image processing systems
Application Number
102581
Publication Number
5060280
Application Date
March 22, 1990
Publication Date
October 22, 1991
Inventor
Yoshihiro Ishida
Kawasaki
JP
Miyuki Enokida
Yokohama
JP
Naoto Kawamura
Yokohama
JP
Yoshinobu Mita
Kawasaki
JP
Agent
Fitzpatrick Cella Harper & Scinto
Assignee
Canon Kabushiki Kaisha
JP
IPC
G06K 9/00
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