Low rank approximation of grayscale images based on SVD
Marina Bay Area, Singapore

Reading RGB Image	Original Grayscale Image A=A(448) 448 by 794 matrix, rank(A)=448
A(10): the best approximation by matirices of rank 10	A(40): the best approximation by matirices of rank 40
A(70): the best approximation by matirices of rank 70	A(100): the best approximation by matirices of rank 100