PPMFLASH

NAME

      ppmflash - brighten a picture up to complete white-out

SYNOPSIS

      ppmflash flashfactor [ppmfile]

DESCRIPTION

      Reads a portable pixmap as input. Increases its brightness by the
      specified flashfactor up to a total white-out image.  The flashfactor
      may be in the range from 0.0 (original picture's brightness) to 1.0
      (full white-out, The Second After).
      As pnmgamma does not do the brightness correction in the way I wanted
      it, this small program was written.
      This program is similar to ppmbrighten , but not exactly the same.

DEMONSTRATION

      Let a.ppm be a portable pixmap.
      The following command will brighten it by a factor of 0.5:
	ppmmerge ppmflash 0.5 a.ppm > aflash.ppm

BEFORE

AFTER

SEE ALSO

      ppm(5), ppmdim(1), pnmgamma(1), ppmbrighten(1)

AUTHOR

      Copyright (C) 1993 by Frank Neumann