Kdenlive/Manual/Effects/Alpha manipulation

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Effects - Alpha manipulation

General Information about Alpha Manipulation

Alpha Manipulation, more commonly known as Chroma Key compositing is an effect that changes the background of the picture to a different background the editor may want.

More information can be found on the pages for the effects themselves:

Chroma Key (formerly Blue Screen)
Color Selection

Alpha gradient
Alpha operations
Alpha shapes
[[Special:myLanguage/Kdenlive/Manual/Effects/Alpha manipulation/Blue Screen|Chroma Key ]
Color Selection
Rectangular Alpha mask (Formerly Mask0Mate)
Rotoscoping
Key Spill Mop Up

Compositing Reference Material

For some background, the Wikipedia article in alpha compositing is useful. See also Porter, Thomas; Tom Duff (1984). "Compositing Digital Images". Computer Graphics 18 (3): p253–259 1984 pdf