Image denoising apparatus and method

Details Image denoising apparatus and method Image denoising apparatus and method

2005-08-24

2009-02-24

Wu, Jingge (Department: 2624)

Image analysis

Image enhancement or restoration

Artifact removal or suppression

Reexamination Certificate

active

07496240

ABSTRACT:
According to an image de-noising method, an original image is corrected into an intermediate correction image. A differential image is determined between the original image and the intermediate correction image. Each pixel in the differential image has a differential pixel value equal to a difference between the pixel value of the corresponding pixel in the original image and the corrected pixel value of the corresponding pixel in the intermediate correction image. A pixel-dependent conversion parameter is determined at each pixel based on the differential pixel value at the each pixel in the differential image. The original image is corrected into a final correction image by using the pixel-dependent conversion parameter.

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