ColorCorrect node

This documentation is for version 2.1 of ColorCorrect (net.sf.openfx.ColorCorrectPlugin).

Description

Adjusts the saturation, contrast, gamma, gain and offset of an image.

The ranges of the shadows, midtones and highlights are controlled by the curves in the “Ranges” tab.

The Contrast adjustment works using the formula: Output = (Input/0.18)^Contrast*0.18.

See also:

• http://opticalenquiry.com/nuke/index.php?title=ColorCorrect

• https://compositormathematic.wordpress.com/2013/07/06/gamma-contrast/

Inputs

Input	Description	Optional
Source		No
Mask		Yes

Controls

Parameter / script name	Type	Default	Function
Saturation / MasterSaturation	Color	r: 1 g: 1 b: 1 a: 1
Contrast / MasterContrast	Color	r: 1 g: 1 b: 1 a: 1
Gamma / MasterGamma	Color	r: 1 g: 1 b: 1 a: 1
Gain / MasterGain	Color	r: 1 g: 1 b: 1 a: 1
Offset / MasterOffset	Color	r: 0 g: 0 b: 0 a: 0
Enable / ShadowsEnable	Boolean	On	When checked, Shadows correction is enabled.
Saturation / ShadowsSaturation	Color	r: 1 g: 1 b: 1 a: 1
Contrast / ShadowsContrast	Color	r: 1 g: 1 b: 1 a: 1
Gamma / ShadowsGamma	Color	r: 1 g: 1 b: 1 a: 1
Gain / ShadowsGain	Color	r: 1 g: 1 b: 1 a: 1
Offset / ShadowsOffset	Color	r: 0 g: 0 b: 0 a: 0
Enable / MidtonesEnable	Boolean	On	When checked, Midtones correction is enabled.
Saturation / MidtonesSaturation	Color	r: 1 g: 1 b: 1 a: 1
Contrast / MidtonesContrast	Color	r: 1 g: 1 b: 1 a: 1
Gamma / MidtonesGamma	Color	r: 1 g: 1 b: 1 a: 1
Gain / MidtonesGain	Color	r: 1 g: 1 b: 1 a: 1
Offset / MidtonesOffset	Color	r: 0 g: 0 b: 0 a: 0
Enable / HighlightsEnable	Boolean	On	When checked, Highlights correction is enabled.
Saturation / HighlightsSaturation	Color	r: 1 g: 1 b: 1 a: 1
Contrast / HighlightsContrast	Color	r: 1 g: 1 b: 1 a: 1
Gamma / HighlightsGamma	Color	r: 1 g: 1 b: 1 a: 1
Gain / HighlightsGain	Color	r: 1 g: 1 b: 1 a: 1
Offset / HighlightsOffset	Color	r: 0 g: 0 b: 0 a: 0
Range / range	Double	min: 0 max: 1	Expected range for input values. Within this range, a lookup table is used for faster computation.
Tone Ranges / toneRanges	Parametric	Shadow:   Highlight:	Tone ranges lookup table
Luminance Math / luminanceMath	Choice	Rec. 709	Formula used to compute luminance from RGB values (used for saturation adjustments). 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.