# pambrighten > Change a PAM image's saturation and value. > More information: . - Increase the saturation of each pixel by the specified percentage: `pambrighten -saturation {{value_percent}} {{path/to/image.pam}} > {{path/to/output.pam}}` - Increase the value (from the HSV color space) of each pixel by the specified percentage: `pambrighten -value {{value_percent}} {{path/to/image.pam}} > {{path/to/output.pam}}`