Talk:Digital compositing

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This is a very technical explanation. I'd like to help put it into plain English, but don't want to get anything wrong. Howabout, for example: "It relies on replacing parts of one image with another. This is achieved by making transparent any part of the image which is a specified colour (e.g. green, blue, or black). This allows a second image to 'show through', creating a composite." --Rayray 11:34, 23 November 2005 (UTC)

[edit] Merging

In my opinion, there ought to be (at least) two articles. One (this page) should be about compositing in relation to filmmaking, covering practical techniques and products. Another, currently alpha compositing, should focus on the theory (Porter-Duff, etc.), mathematics, and its relation to software and computer graphics. The audience of the first page would be the layman/filmmaker, and that of the second page a mathematician/computer scientist. Perhaps we should work to move the math to alpha compositing. --IanOsgood 04:02, 20 July 2006 (UTC)

[edit] γ

γ is introduced without a description equivalent to the description for α, being "the opacity value of the foreground pixel" Hackwrench 07:22, 31 July 2006 (UTC)