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Blur HQ

Blur HQ

Use Blur HQ when smoother blur quality is needed with reduced sampling artifacts. It is suited to final passes where regular blur appears too coarse.

Availability

This node requires Pro.

Common uses

  • Use blur before thresholding to smooth noisy masks.
  • Use sharpen and highpass to recover or isolate detail bands.

Input ports

  • input

  • Requires an image input signal.

Output ports

  • out

  • Outputs a filtered image that preserves graph connectivity.

Parameters

ParameterTypeDefaultRange or values
Strengthfloat50 to 50
Qualityint81 to 32
Directionenumbothhorizontal, vertical, both

Behavior

  • Detail filters operate on neighboring pixels and are sensitive to resolution.
  • Different blur and sharpen algorithms produce distinct edge behavior.

Common mistakes

  • Large radii can wipe out fine structure.
  • Repeated detail filters can create halos or ringing.

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