Selective focus is a photographic effect that places one area of an image in sharp focus while blurring the rest. Traditionally you'd achieve this effect with special camera lenses; with the advent of ...

A very useful skill in Photo manipulation is the ability to selectively alter an area. If you can selectively colour an area you can use the same technique to apply a whole range of effects to very ...

The Gimp provides the Rectangle, Ellipse and Lasso selection tools to help you cut out specific parts of a photo or illustration to keep, eliminate or edit. In addition, if you add an Alpha channel to ...