Spatial Nr Controls - Blackmagic Design Cintel Scanner Installations- Und Bedienungsanleitung

Chroma Threshold:
Determines how much temporal NR os applied to the chroma component of the image. The
range is 0–100, where 0 applies no noise reduction at all, and 100 is the maximum amount. Too
high a setting may eliminate fine color detail from the image. However, you may find you can
raise the chroma threshold higher than the luma threshold with less noticeable artifacting.
Gang Luma Chroma
Ordinarily, the luma and chroma threshold parameters are ganged together so that adjusting
one adjusts both. However, disabling this checkbox ungangs these parameters, allowing you to
adjust different noise reduction amounts to each component of the image, depending on where
the noise happens to be worst.
Motion
Defines the threshold separating which moving pixels are in motion versus which moving pixels
are static. Moving pixels in motion are above the threshold and moving pixels which are static
are below the threshold. Using motion estimation, temporal NR is not applied to regions of the
image that fall above this threshold, to prevent motion artifacts by not applying frame-averaging
to parts of the image that are in motion. Lower values omit more of the image from temporal
NR by considering more subtle movements. Higher values apply temporal NR to more of the
image by requiring faster motion for exclusion. You can choose between 0 and 100, where 0
applies temporal NR to no pixels, and 100 applies temporal NR to all pixels. The default value
is 50, which is a suitable compromise for many clips. Be aware that if you set too high a motion
threshold, you may see artifacts in moving parts of the image.
Blend
Lets you dissolve between the image as it's being affected by the temporal NR parameters
at 0.0 and the image with no noise reduction at 100.0. This parameter lets you easily split the
difference when using aggressive temporal noise reduction.

Spatial NR Controls

The spatial NR controls let you smooth out regions of high-frequency noise throughout the
image, while attempting to avoid softening by preserving detail. It's effective for reducing noise
that temporal NR can't.
Mode
The 'mode' menu lets you switch spatial NR between three different algorithms. All three modes
of operation use the same controls, so you can switch between modes using the same settings
to compare your results.
Faster
Uses a computationally lightweight method of noise reduction that's good at lower settings,
but may produce artifacts when applied at higher values.
Better
Switches the spatial NR controls to use a higher quality algorithm that produces greatly
superior results to Faster, at the expense of being more processor intensive to render
and not allowing you to decouple the luma and chroma threshold sliders for individual
adjustments to each color component.
Enhanced
Does a significantly better job preserving image sharpness and detail when raising the
spatial threshold sliders to eliminate noise. This improvement is particularly apparent when
the spatial threshold sliders are raised to high values, what constitutes 'high' will vary
Noise Reduction 118