发明名称 |
Adaptive error diffusion with improved edge and sharpness perception |
摘要 |
A method for adaptive error diffusion. The method includes the steps of receiving input image data, detecting edges in the input image data, and then adding noise to the input image data depending upon results of said edge detection. The amount of noise is higher for pixels with higher edge content, unless the pixel is on an edge that is already sharp. Once the noise is added the method performs error diffusion on the noise-enhanced image data and it produces output image data. Alternatively, noise can be added to the thresholding portion of the error diffusion process.
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申请公布号 |
US6671068(B1) |
申请公布日期 |
2003.12.30 |
申请号 |
US19990408626 |
申请日期 |
1999.09.30 |
申请人 |
SHARP LABORATORIES OF AMERICA, INC. |
发明人 |
CHANG WILLIAM HO;DALY SCOTT |
分类号 |
G06T5/00;H04N1/405;(IPC1-7):G06K15/00 |
主分类号 |
G06T5/00 |
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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