denoise ¶
This modules implements dehaho functions based on spatial denoising operations.
Functions:
-
hq_dering
–Applies deringing by using a smart smoother near edges (where ringing occurs) only.
-
vine_dehalo
–Dehalo via non-local errors filtering.
Attributes:
hq_dering ¶
hq_dering(
clip: VideoNode,
smooth: VideoNode | PrefilterLike = MINBLUR,
ringmask: VideoNode | None = None,
mrad: int = 1,
msmooth: int = 1,
minp: int = 1,
mthr: float = 60,
incedge: bool = False,
contra: float = 1.4,
drrep: int = 24,
ref: VideoNode | None = None,
dark_thr: float | Sequence[float] = 12,
bright_thr: float | Sequence[float] | None = None,
elast: float | Sequence[float] = 2,
planes: Planes = 0,
) -> VideoNode
Applies deringing by using a smart smoother near edges (where ringing occurs) only.
Example usage
from vsdenoise import Prefilter
dering = hq_dering(clip, Prefilter.BILATERAL, ...)
- Bringing back the DFTTest smoothed clip from havsfunc
is_hd = clip.width >= 1280 or clip.height >= 720
sigma = 128
sigma2 = sigma / 16
smoothed = DFTTest().denoise(
clip,
[0.0, sigma2, 0.05, sigma, 0.5, sigma, 0.75, sigma2, 1.0, 0.0],
sbsize=8 if is_hd else 6,
sosize=6 if is_hd else 4,
tbsize=1,
)
dering = hq_dering(clip, smoothed, ...)
Parameters:
-
clip
¶VideoNode
) –Clip to process.
-
smooth
¶VideoNode | PrefilterLike
, default:MINBLUR
) –Already smoothed clip, or a Prefilter.
-
ringmask
¶VideoNode | None
, default:None
) –Custom ringing mask.
-
mrad
¶int
, default:1
) –Expanding iterations of edge mask, higher value means more aggressive processing.
-
msmooth
¶int
, default:1
) –Inflating iterations of edge mask, higher value means smoother edges of mask.
-
minp
¶int
, default:1
) –Inpanding iterations of the edge mask, higher value means more aggressive processing.
-
mthr
¶float
, default:60
) –Threshold of the edge mask, lower value means more aggressive processing but for strong ringing, lower value will treat some ringing as edge, which "protects" this ringing from being processed.
-
incedge
¶bool
, default:False
) –Whether to include edge in ring mask, by default ring mask only include area near edges.
-
contra
¶float
, default:1.4
) –Whether to use contra-sharpening to resharp deringed clip:
- 0 means no contra
- float: represents level for [contrasharpening_dehalo][vsdehalo.contra.contrasharpening_dehalo]
-
drrep
¶int
, default:24
) –Use repair for details retention, recommended values are 24/23/13/12/1. See the repair modes for more information.
-
planes
¶Planes
, default:0
) –Planes to be processed.
-
ref
¶VideoNode | None
, default:None
) –LimitFilter parameter. Reference clip, to compute the weight to be applied on filtering diff.
-
dark_thr
¶float | Sequence[float]
, default:12
) –LimitFilter parameter. Threshold (8-bit scale) to limit dark filtering diff. Since
dark_thr
is "how much to limit undershoot", increasing this threshold will effectively remove more light halos. -
bright_thr
¶float | Sequence[float] | None
, default:None
) –LimitFilter parameter. Threshold (8-bit scale) to limit bright filtering diff. Since
bright_thr
is "how much to limit overshoot", increasing this threshold will effectively remove more dark halos. -
elast
¶float | Sequence[float]
, default:2
) –LimitFilter parameter. Elasticity of the soft threshold.
Returns:
-
VideoNode
–Deringed clip.
Source code in vsdehalo/denoise.py
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vine_dehalo ¶
vine_dehalo(
clip: VideoNode,
strength: float | Sequence[float] = 16.0,
sharp: float = 0.5,
sigma: float | list[float] = 1.0,
supersampler: ScalerLike = NNEDI3,
downscaler: ScalerLike = Catrom,
planes: Planes = 0,
**kwargs: Any
) -> VideoNode
Dehalo via non-local errors filtering.
Parameters:
-
clip
¶VideoNode
) –Clip to process.
-
strength
¶float | Sequence[float]
, default:16.0
) –Strength of nl_means filtering.
-
sharp
¶float
, default:0.5
) –Weight to blend supersampled clip.
-
sigma
¶float | list[float]
, default:1.0
) –Gaussian sigma for filtering cutoff.
-
supersampler
¶ScalerLike
, default:NNEDI3
) –Scaler used for supersampling before dehaloing.
-
downscaler
¶ScalerLike
, default:Catrom
) –Scaler used for downscaling after supersampling.
-
planes
¶Planes
, default:0
) –Planes to be processed.
-
**kwargs
¶Any
, default:{}
) –Additional kwargs to be passed to nl_means.
Returns:
-
VideoNode
–Dehaloed clip.
Source code in vsdehalo/denoise.py
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