A Removing Noise Algorithm of Gray Image Based on Multi-Threshold
Zhang Chen · Computer Technology and Development · 2011
Denoising in the grayscale image is an important part of image processing technology,and showing the prominent theme of an image is an important work.In this paper,a denoising algorithm of grayscale image is present.Firstly,the growing technique is used to divide the image into different regions,the pixels in these regions have some similarities,and meet a certain similarity rule;Then,the threshold of each region is calculated on the base of the pixels in respective region;Finally,the image is changed into a binary one by threshold.This algorithm is different from the global threshold method and the local threshold method,the experimental results are proved that the algorithm is effective in extracting information on gray image.