| 摘要 |
PROBLEM TO BE SOLVED: To prevent the structure of a logical operation processor from becoming complicated if a plurality of types of ROP processors are prepared in accordance with respective output systems when the structure where a plurality of the output systems in colors and black/white are simultaneously operated is adopted. SOLUTION: For performing a logical operation among a plurality of pixel values, a plurality of pixels shown in first color space and a first code number specifying a logical operation method among a plurality of the pixels are inputted (step S11). The first code number is converted into a second code number (step S15). Color space of a plurality of the pixels is converted into second color space from first color space (step S16). The logical operation is performed among a plurality of the pixels by using a plurality of the pixels and the second code number, which covert color space (step S17). COPYRIGHT: (C)2005,JPO&NCIPI
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