发明名称 |
Binary image data coding method having the function of correcting errors derived from coding |
摘要 |
An image data coding method for a case where image data are transmitted or filed upon being binary coded includes steps of replacing a predetermined pixel by a predicted value predicted by a plurality of pixels peripheral to the predetermined pixel, in conformance with a coded image data compression technique, and performing binary coding while dispersing an error, which is generated by the replacement, among peripheral pixels. Also provided are a variety of image data coding apparatus for practicing this image data coding method. The invention makes it possible to perform binary coding and compression of half-tone image data very efficiently.
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申请公布号 |
US5282256(A) |
申请公布日期 |
1994.01.25 |
申请号 |
US19920900761 |
申请日期 |
1992.06.19 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
OHSAWA, HIDEFUMI;KATAYAMA, AKIHIRO |
分类号 |
G06T9/00;H04N1/41;(IPC1-7):G06K9/36 |
主分类号 |
G06T9/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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