Well I have a method_noise_image(noisy image - denoised image) and there it is expected that only noise is present. But, due to over blurring of denoising filters the method_noise_image possesses some residual along with noise. Now I want to filter out this noise from the method_noise_image so that only the residual is left out. I am new to Fuzzy. Can you please hlep me out with some matlab code using Fuzzy that will be helpful in this implementation.