DOKK / manpages / debian 10 / netpbm / ppmflash.1.en
ppmflash(1) General Commands Manual ppmflash(1)

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 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.

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

Copyright (C) 1993 by Frank Neumann

16 November 1993