Mark,
This is clear enough, but I need some more info on the makeup of the lut. I know what a lut is basically, but do not understand how the number of entries can be variable. Seems to me you need an entry for each possible value in the range of your image? What I see in the lut file is a list of colors, but no way of mapping a particular line/color to a particular image value. Can you point me to some more detailed info on the luts used by FSL? I see some map files as well, but do not understand them either.
-Jeff
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