The GIMP

It's a freely distributed software program for such tasks as photo-retouching, image composition and image authoring. Read more about The GIMP
The GIMP The GIMP Video
The GIMP Video
The GIMP Video
The GIMP Video
The Gimp - Simple Mirror Effect Video
GIMP Tutorial - Removing an Object from an Image Video
GIMP tutorials photo editing - Background Removal Video
GIMP 2.8 Tutorial - Insect Video