发明名称 Color image processing apparatus, method, and printer driver
摘要 A color image processing apparatus is provided with a color correction information memory to store input masking coefficients and gamma correction tables. The input masking coefficients can be loaded on the memory by external commands. The gamma correction tables include a table for correction values for the gamma values at pitches of 0.1 within a range of 1.0 to alpha (>1.0). When a gamma correction process is executed, the table to be used is selected by specifying the gamma value by an external command. With a color correction circuit, the gamma correction process and input masking process are executed using the gamma correction tables and input masking coefficients stored in the memory.
申请公布号 US5408342(A) 申请公布日期 1995.04.18
申请号 US19930103901 申请日期 1993.02.25
申请人 CANON KABUSHIKI KAISHA 发明人 KUMADA, SHUICHI;OKUTSU, TOSHIHISA
分类号 H04N1/60;(IPC1-7):H04N1/46 主分类号 H04N1/60
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