pambrighten

adjusts brightness and saturation of PAM/PPM images using HSV color model

TLDR

Increase image brightness

$ pambrighten -value [50] [input.pam] > [output.pam]

Adjust saturation

$ pambrighten -saturation [-30] [input.pam] > [output.pam]

SYNOPSIS

pambrighten [options] [file]

DESCRIPTION

pambrighten adjusts brightness and saturation of PAM/PPM images using HSV color model. Positive values increase, negative values decrease. Part of Netpbm toolkit.

PARAMETERS

-value n

Change brightness by percentage (-100 to +100).

-saturation n

Change saturation by percentage (-100 to +100).