Quantize node

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


Reduce the number of color levels per channel.

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


Input Description Optional
Source   No
Mask   Yes


Parameter / script name Type Default Function
Colors / colors Double 16 Number of color levels to use per channel.
Dither / dither Choice None
Dithering method to apply in order to avoid the banding effect.
None (none): No dithering (posterize), creating abrupt changes.
Ordered (Bayer 2x2) (bayer2x2): Ordered dithering using a 2x2 Bayer matrix.
Ordered (Bayer 4x4) (bayer4x4): Ordered dithering using a 4x4 Bayer matrix.
Ordered (Bayer 8x8) (bayer8x8): Ordered dithering using a 8x8 Bayer matrix.
Ordered (void-and-cluster 14x14) (vac14x14): Ordered dithering using a void-and-cluster 14x14 matrix.
Ordered (void-and-cluster 25x25) (vac25x25): Ordered dithering using a void-and-cluster 25x25 matrix.
Random (random): Random dithering.
Seed / seed Integer 2000 Random seed: change this if you want different instances to have different dithering (only for random dithering).
Static Seed / staticSeed Boolean Off When enabled, the dither pattern remains the same for every frame producing a constant dither effect.
(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.