Performs a look-up table transform of an array

dst = cv.LUT(src, lut)

Input

• src input array of 8-bit elements (uint8 or int8).
• lut look-up table of 256 elements; in case of multi-channel input array src, the table should either have a single channel (in this case the same table is used for all channels) or the same number of channels as in the input array.

Output

• dst output array of the same size and number of channels as src, and the same depth as lut.

The function cv.LUT fills the output array with values from the look-up table. Indices of the entries are taken from the input array. That is, the function processes each element of src as follows:

dst(I) = lut(src(I) + d)

where:

d = { 0   if src has uint8 depth
    { 128 if src has  int8 depth