发明名称 IMAGE PROCESSING APPARATUS AND ITS METHOD
摘要 PROBLEM TO BE SOLVED: To reduce quantization error accompanying color transformation processing by using the multi-value dither method. SOLUTION: The color transformation processing combines 2 methods, i.e., 3D-LUT (three dimensional-look up table) processing of 8 bit-10 bit, and the multi-value dither processing of 10 bit-8bit. Keeping a number of bits before and after the color transformation processing at 8 bit excludes effect to other processing sections and prevents increase of the circuit size. COPYRIGHT: (C)2004,JPO
申请公布号 JP2004064629(A) 申请公布日期 2004.02.26
申请号 JP20020223109 申请日期 2002.07.31
申请人 CANON INC 发明人 IINO AKIO
分类号 B41J2/525;G06T1/00;G06T5/00;H04N1/405;H04N1/52;H04N1/60;(IPC1-7):H04N1/52 主分类号 B41J2/525
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