Image enhancement methods with consideration of the smooth...

Details Image enhancement methods with consideration of the smooth... Image enhancement methods with consideration of the smooth...

2011-06-28

2011-06-28

Le, Vu (Department: 2624)

Image analysis

Image enhancement or restoration

C348S229100

Reexamination Certificate

active

07970228

ABSTRACT:
An image processing method applied in an image processor for processing an image including first pixels each having a corresponding pixel value. The pixel values of first pixels are distributed within a first distribution range. Second pixels comprise a region and are obtained from first pixels when a difference between pixel values of adjacent second pixels is less than a predetermined value. Gained pixel values are obtained after applying a gain to the image. An amount of distortion is obtained by summing up weighted differences between a reference pixel value and gained pixel value of first pixels having gained pixel value not distributed within first distribution range. A weighting factor does not equal to 1 when first pixel is within the region, and equals to 1 when first pixel is outside the region. The gain is updated according to the distortion. Processed image is obtained by applying the updated gain.

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