Iterative filtering algorithm for color image based on visual sensitivity and improved directional distance
LI Gaoxi1,CAO Jun1,ZHANG Fuyuan1,LI Hua2
1. College of Mathematical Science, Inner Mongolia University, Hohhot Nei Mongol 010021, China; 2. College of Computer Science, Inner Mongolia University, Hohhot Nei Mongol 010021, China
Abstract：To eliminate the influence of visual difference on color image filtering, a method to compute the visual sensitivity value of three primary colors was given. The filter algorithm detected pixels by rough set first, then used visual sensitivity to correct the test results, finally filtered the noise pixels by the improved Directional Distance Filter (DDF). The experimental results show that the new filter, compared with several other representative vector filters, provides better performance on color keeping, edge detail preservation, and noise filtering rate. In addition, the normalized mean square error of our method is the smallest and the Peak Signal-to-Noise Ratio (PSNR) is the largest under different noise density.
李高西 曹军 张福元 李华. 基于视觉灵敏度及改进方向距离彩色图像迭代滤波算法[J]. 计算机应用, 2013, 33(11): 3204-3208.
LI Gaoxi CAO Jun ZHANG Fuyuan LI Hua. Iterative filtering algorithm for color image based on visual sensitivity and improved directional distance. Journal of Computer Applications, 2013, 33(11): 3204-3208.
2013, Vol. 33 
