Color Difference-based Adaptive Noise Reduction for Images

Abstract

In this paper, we proposed the noise reduction and color restoration method that takes into account the color and/or texture reproduction characteristics as a priority issue. Color difference between a target pixel and every one of surrounding pixels and spatial correlations of pixel values with in 5x5 pixel mask are affected for reproduction of pixel value of the target. The proposed method was evaluated on the points of noise detection accuracy and image restoration, which was applying to the images impaired by salt and pepper noise. As the results, the proposed method shows that it highly reduces noise and it keeps color and/or texture reproduction.