ColorSuppress node

This documentation is for version 1.0 of ColorSuppress (net.sf.openfx.ColorSuppress).


Remove a color or tint from an image.

The effect can either modify the color and/or extract the amount of color and store it in the alpha channel. It can be used to fix the despill or extract a mask from a color.


Input Description Optional
Source   No
Mask   Yes


Parameter / script name Type Default Function
Red / redSuppress Double 0 Fraction of red to suppress.
Green / greenSuppress Double 0 Fraction of green to suppress.
Blue / blueSuppress Double 0 Fraction of blue to suppress.
Cyan / cyanSuppress Double 0 Fraction of cyan to suppress.
Magenta / magentaSuppress Double 0 Fraction of magenta to suppress.
Yellow / yellowSuppress Double 0 Fraction of yellow to suppress.
Output / outputMode Choice Image
Suppress mode.
Image (image): Suppress color from the image.
Alpha (alpha): Only store the suppress mask in the Alpha channel.
Image and Alpha (both): Suppress the color from the image and store the suppress mask in the Alpha channel.
Preserve Luminance / preserveLuma Boolean Off Preserve image luminosity.
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.
(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.