Controls / Output Bits Per Channel
Selects the image channel used by this operation.
Bit-depth dithering
Adds controlled dithering when reducing channel precision so smooth gradients are less likely to collapse into visible bands.
Adds controlled dithering when reducing channel precision so smooth gradients are less likely to collapse into visible bands.
Overview
Adds controlled dithering when reducing channel precision so smooth gradients are less likely to collapse into visible bands.
Dither trades a small amount of structured or distributed noise for smoother perceived tonal transitions after bit-depth reduction.
Dither trades a small amount of structured or distributed noise for smoother perceived tonal transitions after bit-depth reduction.
Flow anatomy
The port structure shows how this node fits into a Fusion graph.
Source image for the operation.
The processed result from this node.
Inspector
Start with these controls before reaching for more complicated workarounds.
Selects the image channel used by this operation.
Chooses the dithering algorithm used to break up quantization banding.
Disables dithering and performs only the bit-depth reduction.
Available choices include banding, Floyd Steinberg, and Ordered.
Uses an ordered matrix pattern for deterministic dithering.
Uses a simple error-distribution method to spread quantization error into neighboring pixels.
Uses Floyd–Steinberg error diffusion to distribute quantization error into neighboring pixels.
Sets multiplier.
Sets the color Space.
Performs the dithering calculation in RGB.
Performs dithering in Hue, Lightness and Saturation space.
Performs the dithering calculation in YUV color space.
Performs the dithering calculation in YIQ color space.
Performs the dithering calculation in Cyan, Magenta and Yellow.
Performs the dithering calculation in Hue, Saturation and Value.
Performs the dithering calculation in CIE XYZ color space.
Performs the dithering calculation in CIE Lab color space.
Practical setup
Set the intended output precision.
Compare the dither methods on the problem gradient.
Keep Multiplier as low as possible while hiding bands.
Inspect dark regions at 100%.
Check the encoded deliverable, not only the Fusion viewer.
Examples
Dither a smooth background before final delivery.
Repair existing bands and add controlled texture for output.
Troubleshooting
Production notes
Related nodes