defgroup "ROIoption" groupdesc="an option of this group is required"
groupoption "roi" r "ROI to binarize (if -1 = all roi)" int no default="-1" group="ROIoption"
groupoption "roiName" n "ROI name to binarize (be wary of spaces in ROI names; if blank, use given 'roi' value)" string no default="" group="ROIoption"
-groupoption "roiNameSubstr" s "Substring of ROI name to binarize (reuturns the first match; if blank, use given 'roiName' value)" string no default="" group="ROIoption"
+groupoption "roiNameSubstr" s "Substring of ROI name to binarize (reuturns all matches; if blank, use given 'roiName' value)" string no default="" group="ROIoption"
option "crop" c "Crop binary mask" flag off