AFNI program: aiv

Usage: aiv [-v] image ...
AFNI Image Viewer program.
Shows the 2D images on the command line in an AFNI-like image viewer.
Image formats are those supported by to3d:
 * various MRI formats
 * raw PPM or PGM
 * JPEG (if djpeg is in the path)
 * GIF, TIFF, BMP, and PNG (if netpbm is in the path)
The '-v' option will make aiv print out the image filenames
as it reads them - this can be a useful progress meter if
the program starts up slowly.