Synchronization Algorithm of Image Denoising and Contrast Enhancement Based on PDE
Bin Wang · Jisuanji gongcheng · 2009
Considering the gray image which is lower contrast and noised, a piecewise linear stretch function is designed and a new mathematical model of Partial Differential Equations(PDE) is contributed using Total Variation(TV) descent.The model controls the extent of denoising and contrast enhancement by setting a parameter, and two image processing technologies are realized.Results of contrast experiments show that the new algorithm can effectively alleviate the disadvantages in traditional methods, noise in gray image is restrain and the contrast is enhanced.