发明名称 |
Image processing apparatus and method. |
摘要 |
<p>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. <IMAGE></p> |
申请公布号 |
EP0685963(A2) |
申请公布日期 |
1995.12.06 |
申请号 |
EP19950303650 |
申请日期 |
1995.05.30 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
YOSHIDA, TADASHI, C/O CANON K.K. |
分类号 |
H04N1/41;G06K9/20;G06T9/00;H03M7/28;H03M7/30;H04N1/46;H04N1/64;(IPC1-7):H04N1/64 |
主分类号 |
H04N1/41 |
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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