System and method for reducing color artifacts in digital...

Details System and method for reducing color artifacts in digital... System and method for reducing color artifacts in digital...

2008-02-05

2011-12-27

Ahmed, Samir (Department: 2624)

Image analysis

Color image processing

Color correction

C382S162000, C382S168000, C382S274000, C345S589000, C358S518000

Reexamination Certificate

active

08086034

ABSTRACT:
Systems and methods for reducing color artifacts in digital images. A disclosed embodiment includes averaging original color pixel values of a subject pixel in a first color domain (e.g., red, green, and blue values when operating on demosaiced pixels in the Bayer domain) with respective color pixel values of adjacent pixels, converting the average color pixel values to a second color domain, determining replacement color pixel values in the first color domain based on the color pixel values in the second color domain, and replacing the original color pixel values of the subject pixel with the replacement color pixel values. Embodiments can be repeated for some or all pixels in a digital image to reduce color artifacts across a portion of the image or the entire image, and can be performed during or at any time after demosaicing.

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