发明名称 IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD THAT CORRECT COLOR CONVERSION TABLE USED WHEN READING DOCUMENT
摘要 Conventionally, it is not possible to evenly correct a color conversion table of a reading device in the entire color region even with a limited number of patches. In order to correct a color conversion table, a color conversion table from a device-independent color space into a device-independent color space is newly stored. A shift in read data between devices is reflected in a correction 3D-LUT and a color conversion table is corrected using the correction 3D-LUT. Thereby, it is possible to correct the entire color region with a smaller number of pieces of data and with less time and effort than when a color conversion table is newly recreated.
申请公布号 US2014036325(A1) 申请公布日期 2014.02.06
申请号 US201314049203 申请日期 2013.10.08
申请人 CANON KABUSHIKI KAISHA 发明人 HASHIZUME ASAKO
分类号 H04N1/60 主分类号 H04N1/60
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