Image analysis – Image enhancement or restoration – Intensity – brightness – contrast – or shading correction
Reexamination Certificate
2004-06-01
2008-09-02
Ahmed, Samir A. (Department: 2624)
Image analysis
Image enhancement or restoration
Intensity, brightness, contrast, or shading correction
C382S124000
Reexamination Certificate
active
07421143
ABSTRACT:
A method for dynamic range adjustment of image data of a captured image by determining a white point of an image. The method also involves determining a black point of the image, classifying pixels of the image, and determining an offset value for a pixel of the image based on the determined black point of the image and the determined classification of the pixel. Dynamic range adjustment of the image data is performed using the determined offset value for the pixels of the image and the determined white point of the image.
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Li Xing
Schweid Stuart A.
Shiau Jeng-nan
Ahmed Samir A.
Oliff & Berridg,e PLC
Woldemariam Aklilu K
Xerox Corporation
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