Computes matrix B by using A as an index to lookup table LUT.
B = uintlut(A, LUT) calculates a matrix B by using LUT as a lookup table indexed by values in A.
B class is the same as LUT.
The following code
uintlut(uint8([1,2,3,4]),uint8([255:-1:0])); % Returns a uint8 array [255,254,253,252]
gives an example of how 'uintlut' is used.