3. For the given image lena.png, compute the distribution of the residual, from the prediction scheme:

xpj, k=w1xj-1, k+w2xj-1, k-1+w3x[j, k-1]

compute the predicted image residual error, (Hint, use pixelPredict.m), and answer the following questions,

1. Plot the distribution of the residual image, find the double sided Geometry Distribution that best fits this error distribution for W=[1/3, 1/3, 1/3 ]
2. Design Golomb code with proper segment size m, that best fits the statistics of this residual image.