A Median Filter Algorithm Based on Improved Unsymmetrical Trimmed
Yuan Bao-she · Computer Technology and Development · 2012
In order to restore the image as well as preserve image details with salt-pepper noise under a wide range of noise densities,propose a median filter algorithm based on improved unsymmetrical trimmed for removal of salt-pepper.This way firstly check the salt-pepper noise,then according to the number of noises in the window adaptively adjust the filter window size,finally get median by an improved unsymmetrical trimmed median filter.The results show that this algorithm is better than other algorithms in each index.The experimental results show that this algorithm may better eliminate salt-pepper noise and effectively protect image detail well,and it has a outstanding result for removal salt-pepper in comparison with other existing median algorithms under all kinds of noise densities.