I want to use compressive sensing to reconstruct an image from fewer samples.
My problem is with
Psi matrix which I want to be Biorthogonal wavelet coefficients but I don't know how to define it.
I have used Fourier basis and Haar wavelet and it worked well. Here is my code with
Can anyone tell me how to define
Psi matrix as Biorthogonal wavelet transform?
Thanks in advance.
Phi=randn(m,n); %Measurment Matrix
Psi=generate_haar(n); %sensing Matrix which is made by generate_haar function
y=Phi*x; %compressed signal
%Initial Guess: y=Theta*s => s=Theta\y
s1=OMP( Theta, y, 1e-3);