发明名称 |
Image clean-up and pre-coding |
摘要 |
A method of filtering a digital image is described. A filter kernel is applied to a respective pixel in a set of pixels to smooth noise and preserve spatial frequencies associated with image edges in the digital image in accordance with a first filtering parameter. The filter kernel is a function of the respective pixel and has a closed form for the respective pixel. The filter kernel includes contributions from a first set of neighboring pixels and has a content-dependent normalization such that a sum of elements in the filter kernel equals a substantially fixed value. |
申请公布号 |
US2005276504(A1) |
申请公布日期 |
2005.12.15 |
申请号 |
US20050153461 |
申请日期 |
2005.06.14 |
申请人 |
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发明人 |
CHUI CHARLES;WANG JIANZHONG |
分类号 |
G06K9/40;G06T5/00;(IPC1-7):G06K9/40 |
主分类号 |
G06K9/40 |
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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