发明名称 |
Image processing apparatus, image processing method, and computer program product |
摘要 |
An image processing apparatus includes a threshold selecting unit that selects a threshold based on an input gray-scale value of the target pixel. When a degree of flexibility is defined as representing a degree of the number of pixels that can take different output values as a result of threshold processing on the pixels with the same input gray-scale value, the threshold selecting unit selects a threshold from at least two types of thresholds associated with pixel positions and having the same period and different degrees of flexibility.
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申请公布号 |
US7881553(B2) |
申请公布日期 |
2011.02.01 |
申请号 |
US20060636688 |
申请日期 |
2006.12.06 |
申请人 |
RICOH COMPANY, LTD. |
发明人 |
ISHII HIROSHI |
分类号 |
G06K9/38;G06K9/40;H04N1/40 |
主分类号 |
G06K9/38 |
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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