This document describes KGamma version 1.0.2 (KDE 3.2)
KGamma is a tool for monitor gamma correction. With proper gamma settings, your display (websites, images, etc.) will look the same on your monitor as on other monitors.
KGamma allows you to alter the monitor's gamma correction of XFree86. But that's not all to do. For good results you have to set the correct brightness, contrast and color balance of your monitor. This may be difficult and you have to repeat every step several times. For perfect results you need really good (and expensive) hardware.
This are system settings, please do not use KGamma to manipulate your image files.