An improved image denoising method combining PM model with YK model
Wang Mei-qin · Microcomputer Information · 2009
The second-order and fourth-order anisotropic diffusion equations were analyzed in the paper.A new diffusion operator combining P-M model with YK model was proposed and a new diffusion parameter is used to improve the denoising effects.The numerical experiments show that the new method is better than the two above on removing Gaussian noise.It can not only get higher value of PSNR,but also eliminate the isolated speckles in fourth-order equation.