Image analysis – Image enhancement or restoration – Image filter
Reexamination Certificate
2007-08-28
2007-08-28
Patel, Kanjibhai (Department: 2624)
Image analysis
Image enhancement or restoration
Image filter
C382S264000, C382S274000
Reexamination Certificate
active
10742844
ABSTRACT:
A region-based illumination-normalization method and system utilizes a plurality of filters to filter a test image for obtaining a high frequency image and a low pass image. The low pass image is segmented into several regions by an image segmentation unit so that a region-based adjustment unit normalizes the regions based on an illumination reference model, respectively. Finally, an image combination unit is employed to combine the high frequency image and the low pass image that is normalized.
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Huang Chingchun
Tsai Yao-Hong
Bacon & Thomas PLLC
Industrial Technology Research Institute
Patel Kanjibhai
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