1. Write a MATLAB program for the following a. Download a standard image (peppers.png) and add salt and pepper noise to the input image. b. Design a suitable filter with following specifications: pass band frequency =1.4 stop band frequency, Ripple in pass band =4.9db, stop band ripple =30dB. And verify whether the filter can be used to remove the noise by proper selection of stop band frequency. c. Plot the noise spectrum, input image and filtered image signal. d. Plot magnitude and phase response of the filter using Matlab program on a normalized scale. e. Provide critical reflection on the results obtained from part b), c) and d) f. Demonstration of the above results in Matlab