发明名称 IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD
摘要 PROBLEM TO BE SOLVED: To create a look-up table, in which conversion errors after color conversion are influenced by input data as little as possible. SOLUTION: The number of gradations is for each color of an input value is reduced, in response to the color characteristic of a color space table. A memory address for storing an output value in the table is determined, by using the result of reduction of the input value in which the gradation number is reduced. A combination of input values, having the same result of reduction, is calculated. A representative input value is calculated from among the combination of input values, having the same calculated result of the reduction of the gradation number. A representative output value is calculated on the basis of the representative input value. The calculated representative output value is stored in the determined memory address of the table, and the table is created. COPYRIGHT: (C)2003,JPO
申请公布号 JP2003234918(A) 申请公布日期 2003.08.22
申请号 JP20020034582 申请日期 2002.02.12
申请人 CANON INC 发明人 HAMADA TETSUYA
分类号 B41J2/525;G06T1/00;H04N1/46;H04N1/60;(IPC1-7):H04N1/60 主分类号 B41J2/525
代理机构 代理人
主权项
地址