发明名称 |
Image processing apparatus, image processing method, program for implementing the method, and storage medium |
摘要 |
There is provided an image processing apparatus which enables high-speed processing with simplified multiplications and divisions even in the case of error diffusion comprised of a combination of processes of two or more colors. The image processing apparatus performs error diffusion on multivalued image data composed of a plurality of density components and outputs the result of the error diffusion. A plurality of error tables are stored in a storage device. One error table is selected from the plurality of error tables according to a density value of a first density component among the plurality of density components and a density value of at least one other density component when performing the error diffusion on the first density component. A CPU performs the error diffusion on the multivalued image data using the selected error table.
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申请公布号 |
US7315395(B2) |
申请公布日期 |
2008.01.01 |
申请号 |
US20030386907 |
申请日期 |
2003.03.12 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
YAMADA AKITOSHI;KATO MASAO |
分类号 |
G06T5/00;H04N1/405;H04N1/52 |
主分类号 |
G06T5/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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