initialized indicesArray and bitsArray to empty in case of new structure
updates for importing registration object - untested.
FFT based image upsampler
Added option to display upsamlped image based on FFT.
Set optS.sinc_filter_on_display flaf to off
Updates for upsampling image using fft.
updated to use "var" option in ~exist('cerr_optS','var')
assign identity matrices in case of missing pre/postRegTransM
Added support for MET_USHORT datatype
Fixed storage of min/max scan vals for the fused scan.
fft upsampler for 3d image data.
updated copyright information for updownsample.m
check for empty ptweight
Merge branch 'master' of github.com:adityaapte/CERR into compiled