发明名称 |
Color conversion method using buffer storage for compact printer system |
摘要 |
A color conversion method and apparatus for a compact printer system. An image processor converts a stored image from a first tri-color space to a second tri-color space. Resultant transformation values are read from lookup tables for each color component of the stored image pixels and a single cycle interpolator unit performs linear interpolation to generate a single color component in the second tri-color space in 14 cycles. In one example, the L*a*b* color space is converted to CMY color space. In another example, the RGB form is converted to the L*a*b* form and two extra L* components for use in sharpening a converted image.
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申请公布号 |
US2004239807(A1) |
申请公布日期 |
2004.12.02 |
申请号 |
US20030636260 |
申请日期 |
2003.08.08 |
申请人 |
WALMSLEY SIMON ROBERT |
发明人 |
WALMSLEY SIMON ROBERT |
分类号 |
B41J2/01;B41J2/155;B41J2/165;B41J2/175;B41J2/21;B41J2/525;B41J3/36;B41J3/42;B41J3/44;B41J3/46;B41J5/46;B41J13/12;B41J23/02;B41J29/00;B41J29/393;G03B15/00;G03B17/00;G03B19/00;G03B19/02;G03B27/00;G03B29/00;G06F3/12;G06T1/00;G06T5/00;G06T9/00;G06T11/00;G07F17/32;H04N1/00;H04N1/21;H04N1/405;H04N1/46;H04N1/52;H04N1/60;H04N5/222;H04N5/76;H04N5/91;H04N9/64;H04N9/73;(IPC1-7):H04N7/00 |
主分类号 |
B41J2/01 |
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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