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 ...

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 ...

GIMP, the popular open-source image manipulation program, includes a number of built-in lighting and shadow effects. One of these, called "Supernova," creates radiating beams of photo-realistic light ...