Man page 1 : ppmflash

ppmflash - brighten a picture up to complete white-out

ppmflash flashfactor [ ppmfile ]

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 pnmgammadoes 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.

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

Copyright (C) 1993 by Frank Neumann