Image analysis – Image enhancement or restoration – Artifact removal or suppression
Reexamination Certificate
2011-06-14
2011-06-14
Hung, Yubin (Department: 2624)
Image analysis
Image enhancement or restoration
Artifact removal or suppression
C382S260000, C382S264000
Reexamination Certificate
active
07961977
ABSTRACT:
According to one embodiment, an image processing apparatus includes an ε filter that compares the difference between a pixel value of a target pixel to be processed and that of a surrounding pixel neighboring the target pixel in each pixel block of an input image with a predetermined threshold. When the difference exceeds the predetermined threshold, the ε filter performs the replacement of the pixel value of the surrounding pixel. The predetermined threshold includes at least two different thresholds, a first threshold and a second threshold larger than the first threshold. When the difference exceeds the second threshold, the ε filter performs the replacement of the pixel value of the surrounding pixel in stages such that the pixel value of the surrounding pixel approaches that of the target pixel.
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Blakely , Sokoloff, Taylor & Zafman LLP
Hung Yubin
Kabushiki Kaisha Toshiba
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