Scripts are:
- vol-info: print basic information about a volume
- vol-stats: print basic statistics of a volume
- vol-cat: print the voxel values in volumes
- vol-hist: dump an integer histogram for a volume
- vol-vol: calculate volumes of ROIs
- vol-dice: calculate Dice coefficients for ROI overlaps
- vol-tr: change values in a volume
- vol-slice: create slice images from a volume, with an optional overlay