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These approaches however often introduce excessive smoothing and can result in extensive visual feature blurring and thus are suitable only for images with low density noise. A new method to remove noise is proposed in this paper to overcome this limitation, which divides pixels into different categories based on different noise characteristics. If an image is corrupted by salt-and-pepper noise, the pixels are divided into corrupted and noise-free; if the image is corrupted by random valued impulses, the pixels are divided into corrupted, noise-free, and possibly corrupted. Pixels falling into different categories are processed differently. If a pixel is corrupted, modified total variation diffusion is applied; if the pixel is possibly corrupted, weighted total variation diffusion is applied; otherwise, the pixel is left unchanged. Experimental results show that the proposed method is robust to different noise strengths and suitable for different images, with strong noise removal capability as shown by PSNR\/SSIM results as well as the visual quality of restored images.<\/jats:p>","DOI":"10.1155\/2017\/2024396","type":"journal-article","created":{"date-parts":[[2017,4,27]],"date-time":"2017-04-27T17:04:48Z","timestamp":1493312688000},"page":"1-20","source":"Crossref","is-referenced-by-count":3,"title":["A Decision-Based Modified Total Variation Diffusion Method for Impulse Noise Removal"],"prefix":"10.1155","volume":"2017","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8734-4954","authenticated-orcid":true,"given":"Hongyao","family":"Deng","sequence":"first","affiliation":[{"name":"School of Information & Software Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China"},{"name":"College of Computer Engineering, Yangtze Normal University, Chongqing 408000, 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