Saturation node — Natron 2.5.0 documentation

# Saturation node

This documentation is for version 2.0 of Saturation (net.sf.openfx.SaturationPlugin).

## Description

Modify the color saturation of an image.

See also: http://opticalenquiry.com/nuke/index.php?title=Saturation

## Inputs

Input | Description | Optional
--- | --- | ---
Source |  | No
Mask |  | Yes

## Controls

Parameter / script name | Type | Default | Function
--- | --- | --- | ---
Saturation / `saturation` | Double | 1 | Color saturation factor to apply. 0 produces grayscale.
Luminance Math / `luminanceMath` | Choice | Rec. 709 | Formula used to compute luminance from RGB values. Rec. 709 (rec709): Use Rec. 709 (0.2126r + 0.7152g + 0.0722b). Rec. 2020 (rec2020): Use Rec. 2020 (0.2627r + 0.6780g + 0.0593b). ACES AP0 (acesap0): Use ACES AP0 (0.3439664498r + 0.7281660966g + -0.0721325464b). ACES AP1 (acesap1): Use ACES AP1 (0.2722287168r + 0.6740817658g + 0.0536895174b). CCIR 601 (ccir601): Use CCIR 601 (0.2989r + 0.5866g + 0.1145b). Average (average): Use average of r, g, b. Max (max): Use max or r, g, b.
Clamp Black / `clampBlack` | Boolean | On | All colors below 0 on output are set to 0.
Clamp White / `clampWhite` | Boolean | Off | All colors above 1 on output are set to 1.
(Un)premult / `premult` | Boolean | Off | Divide the image by the alpha channel before processing, and re-multiply it afterwards. Use if the input images are premultiplied.
Invert Mask / `maskInvert` | Boolean | Off | When checked, the effect is fully applied where the mask is 0.
Mix / `mix` | Double | 1 | Mix factor between the original and the transformed image.