Superimposition
It has been suggested that this article be merged with Superimposing and Superimposition. (Discuss) Proposed since November 2006. |
Superimposition is a graphics term meaning the placement of an image on top of an already-existing image, usually to add to the overall image effect, but also sometimes to conceal something (such as when a different face is superimposed over the original face in a photograph)
This technique is used to produce photomaps by superimposing aerial photographs over grid lines, contours and other normal mapping features.