Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Allan Yeh0
Michael Chang0
Kou-Hu Tzou0
Date of Patent
April 3, 2007
Patent Application Number
11212372
Date Filed
August 25, 2005
Patent Primary Examiner
Patent abstract
An image processing method and apparatus is described for processing a signal from a monochrome or color sensor that may be subject to pixel defects or blemishes. Without prior knowledge of any pixel defects, the processing method examines each pixel value and its neighboring pixel values. A number of tests are applied to the set of pixel values to determine whether the underlying pixel is defective. If the underlying pixel is determined to be defective, the pixel value is replaced by an estimate value derived from the values of its neighboring pixels. Otherwise, the pixel value remains intact.
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