Procedural Compositing with Batch > Batch: Node Reference >
Keyer-Channel Node

Use the Keyer-Channel node to extract a key from a red, green, or blue channel, or from a custom value.

(a) Image Type box

The Image Type box adjusts the algorithm based on the Image Data Type of your media. See Adjusting Algorithms Based on Image Data Type.

The Picking Controls are the same as those found in the Keyer module’s Channel menu. See Creating a Key by Extracting a Single Colour.