Digital Signal Processing: A Practical Guide for Engineers and Scientists

Book by Steven W. Smith

is the reference

Q3) Write a Matlab program to compute the convolution of the signal x[i] below with the impulse response h(i) given below, using convolution sum formula. x[i]={1, 2, 3, 4, 2, 1, 3, 5, 5, 1, 1), and h[i]={1, 1, 1, 3, 2, 4, 4). Then compute the first 3 output samples using the same formula. Q4) Calculate the histogram for a three bit intensity image below of 8x8 pixels. Then write a program to compute it. 3 5 2 0 1 2 Non 1 2 2 3 3 4 4 4 1 2 2 2. 3 3 3 5 O O-AN 2 4 1 0 0 3 4 6 3 4 1 0 0 4 5 7 N WN Oo h N 3 5 3 3 6 5 6 7 CON 2 5 6 6 7 7 6 6 5 5 2 3 3 4 5 6 DO