An adaptive bilateral filtering method for image processing
Ming Jin · Guangdian gongcheng · 2004
A bilateral filtering method for image processing, i.e. an adaptive filtering process that filters high-frequency noise of image and simultaneously maintains the high-frequency edge information of image based on image brightness variations is proposed. The filtering method optimizes the weight coefficient of Gaussian filter into the product form of Gaussian function and image brightness information. The optimized weight coefficient will be applied to convolution of image. In this way, image brightness will be taken into account and the image edge should be simultaneously maintained as possible during filtering image noise. Since bilateral filtering method can make the weight coefficient of filter vary with image brightness, so the adaptive filtering effect can be attained during the filtering process.