Navigation:  Image Tools > Adjust Colors

To adjust colors of the current image, select in the main menu: Image -> Adjust Colors...

You will see the following window:

Here you can adjust the following parameters:

•Contrast;

•HSV (Hue, Saturation, Value). You can also replace the colors here;

•HSL (Hue, Saturation, Luminosity);

•RGB (Balance of Red, Green, Blue values of the colors);

•Gamma;

•Color Curve;

•Equalization;

•Levels;

•Auto-enhancement methods;

•Basic color effects.

 

Note: you can maximize the window so that the preview image fits in a larger area.