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compressive sensing and Haar wavelet

matlab,haar-wavelet
I want to use CS to reconstruct an image from fewer samples. I use Gaussian random matrix as measurement matrix. My problem is with Psi matrix which I want to be Haar wavelet coefficients but I don't know how to define it. I have used DCT and Fourier basis and...

wavelet decomposition of a vector

matlab,plot,haar-wavelet
If I have a hyperspectral data cube of size "m x n x p" where m is the row size, n represents the column size, while p is the total number of bands. Lets denote the hyperspectral data cube by A. In this case, each pixel of A corresponds to...