| 摘要 |
PROBLEM TO BE SOLVED: To perform rasterization processing of monochrome vector image data at a high speed.SOLUTION: A determination section 2 divides monochrome vector layers constituting vector image data in units of a number of channels of colors, outputs division results to an allocation section 3 and outputs monochrome vector layers left as a remainder as a result of division to a monochrome rasterization section 41. The allocation section 3 allocates the monochrome vector layers input from the determination section 2 to each channel of colors and generates one color vector layer. The color rasterization section 42 converts the color vector layer generated by the allocation section 3 to color raster data. A separation section 5 separates the color raster data converted by the color rasterization section 42 for each channel and generates a plurality of pieces of monochrome raster data. The monochrome rasterization section 41 converts the monochrome vector layers input from the determination section 2 to the monochrome raster data. |
