function C = GaoA B a b lA_gray = rgb2grayA;B_gray = rgb2grayB;A_sub = A_grayaa+sizeB_gray 1 - 1 bb+sizeB_gray 2 - 1;weighted_sum = 1 - l A_sub + l B_gray;A_grayaa+sizeB_gray 1 - 1 bb+sizeB_gray 2 -

% The function Gao performs a weighted blending of two images A and B. % It takes as input the two images A and B, the coordinates a and b of the % top-left corner of the region in A to be blended with B, and the blending % coefficient l. % It returns the blended image C.