Image enhancement based on self-adaptive smooth filtering
Zhang Qiu-j · Modern Electronics Technique · 2013
To enhance the noise image,the image enhancement method based on self-adaptive smooth filtering is adopted in this paper. Firstly,according to the gray difference of the current pixel and the adjacent pixel,it decides whether the average filtering or weighted filtering should be adopted to get the smoothed image,that is,several smooth templates are utilized to perform the self-adaptive smooth filtering of the image to obtain smoothed image. Secondly,the detailed image is got by detracting the smoothed image from the original image. Last,the enhanced image is achieved by adding the detailed image multiplied by the coefficient to the smoothed image. Compared with the methods which enhance the image by smoothing or sharping only,the method can not only remove noise from images ,but also enhance the details of images obviously.