invert(6D)

invert - invert an image

As shipped in IRIX 6.5. First release of IRIX 6.5.

NAME
     invert - invert an image

SYNOPSIS
     invert inimage outimage

DESCRIPTION
     invert inverts an image.  pixel values of 0 become 255 and pixel values
     of 255 map to 0.  The result is to invert the tonal scale of an image.