发明名称 |
Methods and systems for locally adaptive image processing filters |
摘要 |
<p>The present disclosure provides methods and systems for image processing by locally adaptive filters that preserve the edges while smoothing the image. In the exemplary method, a filter adjusts image pixel values utilizing a locally adaptive weighted average method. To adjust the value of a target pixel, the filter uses the data corresponding to some of its surrounding pixels and modifies the weights in an inverse relation with both their distance from the target pixel and the difference between their data. Various embodiments present different schemes for selection of surrounding pixels and computation of weighted average values. <IMAGE></p> |
申请公布号 |
EP1601184(B1) |
申请公布日期 |
2008.02.13 |
申请号 |
EP20050251956 |
申请日期 |
2005.03.30 |
申请人 |
OMNIVISION TECHNOLOGIES, INC. |
发明人 |
SHAN, JIZHANG |
分类号 |
H04N5/21;G06T5/00;G06T5/20;H04N5/208 |
主分类号 |
H04N5/21 |
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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