Convert image into series of columns
y = im2col(x,blk)
Source Image
Block size [m,n]
This function is used to convert the image to columns of vector for faster processing as Scilab perform better with vectorization code.
A = testmatrix('mag',4); B = im2col(A,[3 3]); C = mean(B,1); D = matrix(C,[4,4])'; | ![]() | ![]() |