siz = bestblk([m n],k) returns, for an m-by-n image, the optimal block size for block processing.
The optimal block size is the size required along the outer partial blocks.
k is a scalar specifying the maximum row and column dimensions for the block.
If you omit this argument, the default is 100.
The return value siz is a 1-by-2 vector containing the row and column dimensions for the block.
[mb,nb] = bestblk([m n],k) returns the row and column dimensions for the block in mb and nb, respectively.
siz = bestblk([m n],k) [mb,nb] = bestblk([m n],k)
%Determine Optimal Block Size siz = bestblk([640 800],72) siz = 64 50