Fuzzy Type 2 Salt and Pepper Denoising

MATLAB script for removing Salt and Pepper noise from greyscale image.

Overview

This is an implementation of the paper [1] on using a type 2 fuzzy system for denoising greyscale images with noise density as high as 97%.

Files

[1] kMiddleMean.m : Function that returns k middle mean.
[2] type2_MF.m : Function that returns membership value of pixels in a window and threshold for deciding id pixel is good.
[3] windowImg.m : Function to sample a window from an image.
[4] fuzzySapDenoise.m : Main script for salt and pepper denoising using fuzzy type 2 system.

Result Screenshot

Result for 80% noise density.

Reference

[1] Singh, Vikas, et al. "Adaptive type-2 fuzzy approach for filtering salt and pepper noise in grayscale images." IEEE Transactions on Fuzzy Systems 26.5 (2018): 3170-3176.