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Downscaler ​

Main downscaler for reducing video to display resolution. This filter is used whenever the source resolution is larger than the display resolution.

Downscaler choices

Available Options ​

FilterInternal NameDescriptionSpeed
None (same as upscaler)noneUse the same filter as specified for the upscaler--
HermitehermiteHermite-weighted averagingFast
BilinearbilinearBilinear (triangle) averagingFast
BicubicbicubicBicubic interpolationFast
GaussiangaussianGaussian smoothingFast
Catmull-Romcatmull_romCatmull-Rom cubic splineMedium
MitchellmitchellMitchell-Netravali cubic splineMedium
LanczoslanczosLanczos reconstructionMedium

Default: Hermite (hermite)

  • Hermite is the default and provides smooth, artifact-free downscaling suitable for most content.
  • Mitchell is a good choice for preserving sharpness while avoiding ringing, commonly recommended for downscaling photographic content.
  • Lanczos produces the sharpest downscale but may introduce ringing on high-contrast edges.
  • None reuses the upscaler filter for downscaling, which is rarely ideal since upscaling and downscaling have different quality tradeoffs.

Main Menu → Video Settings → Scalers → Downscaler