Method and device for post-processing digital images

Details Method and device for post-processing digital images Method and device for post-processing digital images

2008-05-13

2008-05-13

Ahmed, Samir (Department: 2624)

Image analysis

Image enhancement or restoration

C382S263000, C382S264000, C382S268000

Reexamination Certificate

active

10474112

ABSTRACT:
A method of post-processing digital images frequency transforming a set of the pixels to a set of transformed coefficients; extracting original low-frequency coefficients and original high-frequency coefficients from the set of transformed coefficients; correcting the original low-frequency coefficients and the original high-frequency coefficients for delivering a set of corrected transformed coefficients including corrected low-frequency coefficients and corrected high-frequency coefficients; and combining the set of corrected transformed coefficients and the original high-frequency coefficients for delivering a set of combined transformed coefficients. The set of combined transformed coefficients are inverse frequency transformed for delivering a processed set of pixels that are ready for display on a screen.

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