发明名称 |
Storing sharpness data using embedded carriers |
摘要 |
A digital image processing method includes the steps of embedding a delta function in a digital image; subjecting the digital image to an intermediate processing step, the intermediate processing step having a modulation transfer function (MTF) that blurs the image; extracting the delta function from the processed digital image; and estimating the MTF from the recovered delta function. The blur is removed from the image by generating a sharpening filter that is substantially the inverse of the MTF and applying the sharpening filter to the blurred image to produce an improved image.
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申请公布号 |
US6721459(B1) |
申请公布日期 |
2004.04.13 |
申请号 |
US19990454100 |
申请日期 |
1999.12.03 |
申请人 |
EASTMAN KODAK COMPANY |
发明人 |
HONSINGER CHRIS W.;KAUFMAN JOHN E. |
分类号 |
G06T5/20;G06T5/10;H04N1/40;(IPC1-7):G06K9/38 |
主分类号 |
G06T5/20 |
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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