High probability impulse noise-removing algorithm based on mathematical morphology

被引:62
作者
Deng Ze-Feng [1 ]
Yin Zhou-Ping [1 ]
Xiong You-Lun [1 ]
机构
[1] Huazhong Univ Sci & Technol, Sch Mech Sci & Engn, Wuhan, Peoples R China
基金
中国国家自然科学基金;
关键词
block smart erase; high probability impulse noise; morphological residue detector; open-close sequence filter;
D O I
10.1109/LSP.2006.881524
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
A novel filter based on mathematical morphology for high probability impulse noise removal is presented. First, an impulse noise detector using mathematical residues is proposed to identify pixels that are contaminated by the salt or pepper noise. Then the image is restored using specialized open-close sequence algorithms that apply only to the noisy pixels. Finally, black and white blocks that degrade the quality of the image will be recovered by a block smart erase method. Experimental results demonstrate that the proposed filter outperforms a number of existing algorithms and is particularly effective for the very highly corrupted images.
引用
收藏
页码:31 / 34
页数:4
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