发明名称 SIGNAL PROCESSING CIRCUIT AND SIGNAL PROCESSING METHOD FOR IMAGE DATA
摘要 <P>PROBLEM TO BE SOLVED: To obtain an image of relatively near color to the color of a subject while preventing a false signal from being generated. <P>SOLUTION: Image data of RGB (red, green and blue colors) output from a CCD (charge coupled device) is subjected to the white balance correction of full correction in a white balance correcting circuit 1, and luminance data Y1, color difference data Cr1 and Cb1 are generated. The luminance data Y1 are profile-corrected, and parameters &alpha; and &beta; are generated from coefficients mr and mb for a lowered correction in a coefficient correcting circuit 8 based on the profile-corrected luminance data Y2. Color difference data Cr1 and Cb1 are color-corrected like the case that the white balance regulation of the lowered correction is performed by using the parameters &alpha; and &beta;. <P>COPYRIGHT: (C)2005,JPO&NCIPI
申请公布号 JP2004297431(A) 申请公布日期 2004.10.21
申请号 JP20030086883 申请日期 2003.03.27
申请人 FUJI PHOTO FILM CO LTD 发明人 TAMARU MASAYA
分类号 G06T1/00;G06T5/00;H04N1/407;H04N1/46;H04N1/60;H04N9/73 主分类号 G06T1/00
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