A Novel Impulse Detector for Filtering of Highly Corrupted Images

As the performance of the filtering system depends upon the accuracy of the noise detection scheme, in this paper, we present a new scheme for impulse noise detection based on two levels of decision. In this scheme in the first stage we coarsely identify the corrupted pixels and in the second stage we finally decide whether the pixel under consideration is really corrupt or not. The efficacy of the proposed filter has been confirmed by extensive simulations.

Authors:

• Umesh Ghanekar

Keywords:

• Impulse detection
• noise removal
• image filtering.

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