Cast Image U32 LUT

[cedricb]

I typecast a 16 bit monochrome image into a false color U32 image (IMAQ Cast Image).

I therefore compare a slow and a fast algorithm

algo1: slow: convert image to U16 array,

for each array point, get U32 color from LUT

and from resulting array convert back to U32 image

algo2: fast:

typecast U16 image to U32 array with same LUT

the results are different! which transformation does my LUT need to be functional and why?

thanks!