Adaptive center-weighted median filter

作者：Jin Lianghai^*; Xiong Caiquan; Li Dehua

来源：Journal of Huazhong University of Science and Technology (Natural Science Edition), 2008, 36(8): 9-12.

• Center-weighted
• Corrupted images
• Gray-level image
• Image processing
• Impulsive noise
• Impulsive noises
• Median filter
• Median filtering
• Noisy images
• Standard median filters
• Weighted median filtering

An improved median filter was introduced to suppress impulsive noise with low contamination ratios. The proposed solution was a class of adaptive center-weighted median filter. By roughly estimating the corruption ratio, the proposed filter adaptively determines the central weight to make sure that it could perform different amount of smoothing for noisy images with different contamination ratios, namely it could perform slight smoothing for slightly corrupted images and more smoothing for heavily corrupted images. The experimental results show that the proposed solution significantly outperforms the standard median filter (SMF) and some other typical improved median filters.

• 出版日期2008
• 单位华中科技大学