Photo Manipulation Art
Photo manipulation is often much more explicit than subtle alterations to color balance or contrast and may involve overlaying a head onto a different body or changing a sign’s text, for example. Image editing software can be used to apply effects and warp an image until the desired result is achieved. The resulting image may have little or no resemblance to the photo from which it originated. Today, photo manipulation is widely accepted as an art form.
Source: The Fab Web