An expeditious cum efficient algorithm for salt-and-pepper noise removal and edge-detail preservation using cardinal spline interpolation

作者：Jayasree Syamala; Bodduna Kireeti; Pattnaik Prasant Kumar; Siddavatam Rajesh^*

来源：Journal of Visual Communication and Image Representation, 2014, 25(6): 1349-1365.

DOI：10.1016/j.jvcir.2014.05.004

• Edge-preserving regularization
• Salt-and-pepper impulse noise
• Cardinal splines
• Expeditious algorithm
• Image de-noising
• Cardinal spline interpolation
• Edge preservation
• Two-phase noise removal

This work proposes a faster and an efficient way to remove salt-and-pepper impulse noise and edge-preserving regularization of the henceforth obtained image. In this paper, we propose a two phase mechanism where the noisy pixels are identified and removed in the first phase. The detected noisy pixels in the first phase are involved in cardinal spline edge regularization process in the second phase. Promising results were found even for Noise levels as high as 95% with the proposed algorithm. The results were found to be much better than the previously proposed nonlinear filters or regularization methods both in terms of noise removal as well as edge regularization.

• 出版日期2014-8