User Manual

Deband (Studio Version Only)
Low bit-depth media that has areas with shallow gradients of color, such as a sky or a wall, often
exhibit color banding, seen as visible stripes, because there aren’t enough color values to
smoothly represent the gradiation from light blue to darker blue in the sky.
An example of banding in the sky of an image
This filter is designed to isolate the edges of color banding and minimize them by dithering
pixels from either side to soften the transition. This filter works best when applied to regions of
the image that have been isolated with a secondary qualifier or window, otherwise you risk all
edges within your image being dithered and thus softened (although this can be an interesting
stylistic effect).
Minimizing banding using the Deband filter
Deband Parameters
Deband controls include:
 Edge Threshold: Adjusts how well-defined an edge needs to be in order to be affected
by this filter; lowering this excludes fainter edges, while raising this includes them.
 Radius: Lowers or raises the intensity of dithering in areas that will be affected.
 Post Refine: Narrows (by lowering) or widens (by raising) the areas affected by
dithering.
 Display Edge: A checkbox that shows you a black and white high-contrast preview
of which edges are being detected for dithering, which can help you fine-tune
yourresults.
Chapter – 143 ResolveFX Revival 3064