GIMP tutorial : Hue-Saturation, Invert, Sharpen, Curves – good graphic tools

Sometimes I am using GIMP with my Mosaic Creator .

I am sharing on the Instagram.

GIMP is very good free photo editor. Almost as good as Photoshop is.

In the video I show some effects (Hue-Saturation, Invert, Sharpen, Curves )