Using Matlab......Use the 2-dimensional Haar wavelet transform to perform one-level decomposition on the gray-scale image. Obtain the gray scale image using the steps below. Step 1: Save the picture below as a .png file ('Lenna.png') and save it to your computer. Then convert it to a gray scale image using the code below. Source Code [I,map] = imread('Lenna.png'); [x, map] =rgb2ind(I); I=ind2gray(x, map); imshow(I)