发明名称 |
Image processing method and device for the same |
摘要 |
<p>Disclosed is an image processing device which comprises a conversion means for converting an image data to a space frequency component, a quantization means for quantizing the space frequency component converted by the conversion means, and a control means for controlling the quantization means so that a quantization error produced when the converted space frequency component is quantized by the quantization means is diffused to nearby space frequency components. <IMAGE></p> |
申请公布号 |
EP0509743(B1) |
申请公布日期 |
1997.10.15 |
申请号 |
EP19920303313 |
申请日期 |
1992.04.14 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
SUGIURA, SUSUMU;MITA, YOSHINOBU |
分类号 |
H03M7/30;G06T9/00;H04N1/41;H04N19/36;H04N19/42;H04N19/423;H04N19/60;H04N19/625;H04N19/85;H04N19/91;(IPC1-7):H04N7/24 |
主分类号 |
H03M7/30 |
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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