System and method for classifying pixels in images

Details System and method for classifying pixels in images System and method for classifying pixels in images

2004-10-14

2008-03-18

Wu, Jingge (Department: 2624)

Image analysis

Image enhancement or restoration

Image filter

C382S233000, C382S260000, C382S205000, C382S279000, C382S268000, C382S275000

Reexamination Certificate

active

07346224

ABSTRACT:
A method classifies pixels in an image by first partitioning the image into blocks. A variance of an intensity is determined for each pixel, and for each block the pixel with the maximum variance is identified. Then, the blocks are classified into classes according to the maximum variance.

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Chen, et al., “Adaptive post-filtering of transform coefficients for the reduction of blocking artifacts,” IEEE Transactions on Circuits and Systems for Video Technology, vol. 11, May 2001.

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