发明名称 |
Kontinuierliche Gradationskomprimierung und -entkomprimierung von Bilddaten oder akustischen Daten mittels Approximation durch Polynome |
摘要 |
<p>An image processing apparatus by which an excellent image can be obtained even after compression and expansion. A compression circuit (12) has a line scanning unit which divides original image data into color data groups in relation to respective pixels, a line compression unit (24) which expresses the value (y) of the color data corresponding to each pixel position in a predetermined section with a polynomial: y=ax<3>+bx<2>+cx+d wherein (x) denotes the pixel position which is a variable and a coefficient calculation unit (26) which obtains the color data values corresponding to the respective pixel positions in accordance with the received coefficients and pixel positions. The restored image data are outputted to a display apparatus, etc. <IMAGE></p> |
申请公布号 |
DE69826146(D1) |
申请公布日期 |
2004.10.14 |
申请号 |
DE1998626146 |
申请日期 |
1998.11.05 |
申请人 |
FORCE TECHNOLOGY CORP., TOKIO/TOKYO |
发明人 |
NOMURA, YOSHIRO |
分类号 |
G06T9/00;H03M7/30;H04N1/41;H04N9/69;H04N19/00;H04N19/423;H04N19/70;H04N19/80;H04N19/85;H04N19/98;(IPC1-7):H04N1/41;H04N7/24;H04N1/393 |
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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