• Create BookmarkCreate Bookmark
  • Create Note or TagCreate Note or Tag
  • PrintPrint

Keying Effects

To combine a moving element with a different background, you usually need to employ a technique known as keying.

The term key actually refers to its counterpart, the keyhole. Keying cuts a hole in an image, making it transparent. The hole is then filled with another image. If you think this concept sounds similar to mattes and fills, or even masks and alpha channels, you're right: It is. In the end, all of these methods modify the alpha channel to make certain areas of the image transparent.


PREVIEW

                                                                          

Not a subscriber?

Start A Free Trial


  
  • Creative Edge
  • Create BookmarkCreate Bookmark
  • Create Note or TagCreate Note or Tag
  • PrintPrint