usage: prog <Volume file> [options]
	This program writes out the 3D image of the amplitudes of the Fourier transform of a subvolume or a stack of subvolumes.

Option Type Description
--version None show program's version number and exit
--input str default=None. Filename of 3-D image or stack of 3-D images whose FFT amplitudes you want to see.
--ppid int Default=-1. Set the PID of the parent process, used for cross platform PPID
--verbose, -v int verbose level [0-9], higher number means higher level of verboseness