Salt and pepper noise
From Wikipedia, the free encyclopedia
For other uses, see Salt and Pepper.
Salt and pepper noise is a form of noise typically seen on images. It represents itself as randomly occurring white and black pixels. Usual and effective noise reduction method for this type of noise involves the usage of median filter. Below is an example of original image, original image deteriorated by salt and pepper noise, deteriorated image repaired using averaging filter and deteriorated image repaired using median filter.
 Original image. |
 Image with added salt and pepper noise. |
 Reconstructed image using average filter. |
 Reconstructed image using median filter. |
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