Difference Key Node

This node produces a matte that isolates foreground content by comparing it with a reference background image.

輸入

影像 1

Contains foreground content against the background that is to be removed.

影像 2

The reference background image.

Tolerance

Where pixels match the reference background to within the specified threshold, the matte is made transparent.

Falloff

Increase to make nearby pixels partially transparent producing a smoother blend along the edges.

輸出

圖像

Image with its alpha channel adjusted for the keyed selection.

Matte

A black-and-white alpha mask of the key.