发明名称 |
Image-processing apparatus, an image-forming apparatus, and a program |
摘要 |
An image-processing apparatus for quantizing multi-level (M-level) image data into N-level values, where M>N>1, using a multi-level error-diffusion process or a minimum-average multi-level error method is disclosed. The image-processing apparatus includes: means for outputting correction data; means for setting a quantization-threshold value; means for comparing the correction data and the quantization-threshold value so as to output N-level image data; and means for calculating an error generated with generating the N-level image data.
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申请公布号 |
US7660016(B2) |
申请公布日期 |
2010.02.09 |
申请号 |
US20050584674 |
申请日期 |
2005.10.27 |
申请人 |
RICOH COMPANY, LTD. |
发明人 |
IKE TAKAHIRO;HIRANO MASANORI |
分类号 |
H04N1/40;G06K15/00;H04N1/405 |
主分类号 |
H04N1/40 |
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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