thmnoseam

This program should be run on unprojected themis RDR cubes. When the data is projected later, the seams should be minimized. This works by using a biased average, based on how far through the overlap the DN is, in the overlapping space between framelets. The averaging favors the tops of the framelets over the bottoms of framelets because the tops of framelets are generally of better quality for this data set.