发明名称 |
Noise reduction in color digital images using pyramid decomposition |
摘要 |
A method of removing noise from a color digital image, including receiving an original color digital image including a plurality of pixels represented in a primary-color space; producing at least one residual digital image and at least one base digital image from the original color digital image, the base digital image having a lower spatial resolution then the original color digital image; producing a noise reduced base digital image by removing noise from the residual image and the base digital image with a noise reduction filter and combining the noise reduced base digital image with the noise reduced residual image to produce a reconstructed digital image having reduced noise; transforming the reconstructed digital image into a luminance-chrominance color space; repeating the above process to produce a reconstructed luminance-chrominance digital image; and transforming the reconstructed luminance-chrominance digital image into a noise reduced digital image in the original primary color space.
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申请公布号 |
US7257271(B2) |
申请公布日期 |
2007.08.14 |
申请号 |
US20030738658 |
申请日期 |
2003.12.17 |
申请人 |
EASTMAN KODAK COMPANY |
发明人 |
ADAMS, JR. JAMES E.;HAMILTON, JR. JOHN F.;WILLIAMS FRANCES C. |
分类号 |
G06K9/40;G06T5/00;G09G5/00 |
主分类号 |
G06K9/40 |
代理机构 |
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