Image processing device, computer program product including image processing program embodied on computer readable medium, and image forming apparatus
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United States of America Patent
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Jul 29, 2014
Grant Date -
Mar 31, 2011
app pub date -
Sep 17, 2010
filing date -
Sep 29, 2009
priority date (Note) -
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Abstract
An image processing device include a memory, a rasterizer and a color space converter. The rasterizer is configured to generate raster data expressed in a first color space by rendering an object in the memory. The color space converter is configured to convert the raster data from the first color space to a second color space capable of being set so as to reproduce gray of gray pixels in the object by any one of a black coloring material and mixture of multiple color materials. The rasterizer determines whether the gray is reproduced by the black coloring material or the mixture of multiple color materials based on an attribute of the object and adds the gray reproduction information that is obtained from the determination to the raster data. The color space converter sets pixel levels in the second color space based on the gray reproduction information.
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