Suppose I have an input sequence like : x[n] = { x0,x1,x2,x3 }. I have to calculate the DWT level 2: W2 = { S(2,0) , T(2,0) , T(1,0) , T(1,1) } Where S(m,n) is an approximation coefficient and T(m,n) is a wavelet coefficient; m is related to the scale and n is related to the localization. Can anyone suggest me a link or tell what exactly are the equations that I should use to perform such calculation? I would appreciate a webpage with some practical examples. I've been searching for that but couldn't find none right to the point. I also would like to know how to calculate the reconstructed version x'[n] from W2, using the pyramid algorithm. I am not asking for anyone to do the calculations to me, but just to point what are the equations that I should use. Thank you very much.

# Wavelets calculation

Started by ●August 28, 2008