Notch Reference Manual

Auto Key Colour Mask

Method

This node automatically creates a keyed mask for a video.

Raw texture Processed texture Retouched texture
Example Nodegraph

Attributes

Name Description
Active Turn the effect on or off. Values < 0.1 will turn the effect off, and deferred rendering must be on.
Blend Amount Changes the opacity of the new effect over the original image.
Blend Mode (RGB) Change how the generated effect blends with the parent image RGB.
Blend Mode (Alpha) Change how the generated effect blends with the parent image alpha.
Output Mask Only Toggle whether to only output the greyscale mask.
Invert Mask Invert the greyscale output mask.
Blend Mode Choose how the image blends with the scene. See Blend Modes for details.
Process HSV Toggles whether processing is done in HSV colour space.
Show Colours Visualise the colours that were extracted from the input image and used for auto-keying.
Hardness Change the Hardness at the edges of the mask
Vignette Width Controls the width of the centre vignette, inside which the weight of likeliness of colours being used as key colours is reduced.
Colour Difference The threshold of tolerance of difference between key and source pixel colours, inside which the pixel is considered visible / part of the mask.
Hue Difference Toggles whether processing is done in HSV colour space.
Saturation Difference Control the difference in saturation.
Luminance Diffrerence Control the difference in luminance.

Affect Channels

Select which of the RGBA colour channels are affected by the effect.

Inputs

Name Description Typical Input
Key Colour Source Image The image colour you want to key out. Video Source
Vignette Mask Image Image gradually fades into the background. Video Source

Outputs

There are no outputs from this node.