Spatial Threshold Controls - Blackmagic Design Cintel Manual De Instalación Y Funcionamiento

Mode: The 'mode' menu lets you switch spatial NR between three different algorithms.
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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' varies with the image you're working on). At lower values,
the improvement may be more subtle when compared to the 'better' mode, which
is less processor intensive than the computationally expensive 'enhanced' setting.
Additionally, 'enhanced' lets you decouple the luma and chroma threshold sliders
so you can add different noise reduction amounts to each color component, as the
image requires.
Radius: Options include 'large', 'medium', and 'small'. A smaller radius offers greater
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real-time performance and can provide good quality when using low luma and chroma
threshold values. However, you may see more aliasing in regions of detail when using
low NR threshold values.
Setting 'radius' to be progressively larger results in higher quality within areas of
greater visual detail at high luma and chroma threshold values, at the expense of slower
performance. An NR radius of 'medium' should provide suitable quality for most images
when using medium NR threshold settings. As with many operations, there's an
adjustable tradeoff between quality and speed.

Spatial Threshold Controls

The spatial threshold parameters allow you to control which image characteristics get more or
less noise reduction.
Luma: Lets you determine how much or how little noise reduction to apply to the luma
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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 detail from
the image.
Chroma: Lets you determine how much or how little noise reduction to apply to the
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chroma component of the image by smoothing out regions of high-frequency noise
while attempting to preserve the sharpness of significant edge details. 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:
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ganged together so that adjusting one adjusts both. However, you can ungang these
parameters to adjust different amounts of noise reduction to each component of the
image. For example, if an image softens too much at a certain level of noise reduction,
but you find more color speckling than luma noise, you can lower the luma threshold to
preserve detail while raising the chroma threshold to eliminate color noise.
Ordinarily, the luma and chroma threshold parameters are
Noise Reduction 103