Alastair M. Robinson wrote:
You may have already thought of this, but as a workaround, you could use spec2cie -n -f -i<illuminant> -o<observer> to create ti3 files with fwa / illuminant / observer corrected XYZ values, then use those files with average.
Another way is simply to cut and paste all the values together into the same .ti3 file, adjust the NUMBER_OF_SETS appropriately, and run colprof. It will be slower than averaging the values up front, but the end result will be the same. Graeme Gill.