noblack(6D)

noblack - remove all the black from an image

As shipped in IRIX 6.5.30. Unchanged since IRIX 6.5.

NAME
     noblack - remove all the black from an image

SYNOPSIS
     noblack inimage.rgb outimage.rgb

DESCRIPTION
     noblack scales each pixel in an RGB image so at least one of its
     components is 255.  This has the effect of removing all the black from an
     image.