Image analysis – Image enhancement or restoration – Image filter
Reexamination Certificate
2007-11-27
2007-11-27
Wu, Jingge (Department: 2624)
Image analysis
Image enhancement or restoration
Image filter
C382S232000, C382S233000
Reexamination Certificate
active
10476587
ABSTRACT:
The invention relates to methods, devices and computer programs for processing images. The dynamic range of an image is adjusted to allow more detail in the original image to be reproducible, whilst preserving the natural look of the image. Improvements to lossy data compression/decompression algorithms are proposed which include elements of spatial non-uniformity, for example modifying relatively dark portions of an image to a greater extent than relatively bright portions of the image. The algorithms may be made reversible by storing parameters describing the compression process with a compressed image, which can then be used to reverse the process when decompressing the image.
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Kelley Drye & Warren LLP
Krasnic Bernard
Wu Jingge
Yohannan David R.
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