Effect: Blue Screen Mask

Description
Extracts the mask for a blue screen compositing operation. Areas of the image which are blue are considered to be transparent. This is useful for further tweaking the mask before using it in a compositing operation. NOTE: this effect is faster than the "Smooth" version, but may produce lower quality results for some scenes.

Controls

Outside Fill:		Determines the extent to which the background (blue) region of the image spreads into the foreground region.
Inside Fill:		Determines the opacity of the foreground (not blue) region of the image.

Examples

Source	Result