Patent ID: 7590301

Claim:
A method for correcting defective pixels of a color image in a color image processing system, which detects and corrects defective pixels of a digital image, the method comprising the steps of: using a processor to perform the following steps: (A) receiving a pixel and its neighboring pixels of the digital image; (B) interpolating the pixel with red, green and blue colors; (C) producing a first chroma signal and a second chroma signal based on the red, green and blue colors of the pixel interpolated; (D) performing a filtering process on the first chroma signal and the second chroma signal to thus produce a third chroma signal and a fourth chroma signal; (E) determining the pixel as a defective pixel when the third or fourth chroma signal is smaller than a threshold; and (F) computing edge features of the pixel and neighboring pixels, and selecting pixel values from the neighboring pixels in accordance with the edge features for a correction operation of the defective pixel.