ppmflash
Brighten a PPM image file.
TLDR
Generate a PPM image as output that is flashfactor times brighter than the input PPM image
$ ppmflash [flashfactor] [path/to/file.ppm] > [path/to/file.ppm]
Display version
$ ppmflash -version
Generate a PPM image as output that is flashfactor times brighter than the input PPM image
