pripri: bd: all hail the debander

Princess Principal/01/01.vpy

@@ -1,6 +1,6 @@
 import vapoursynth as vs
 
-from pripri_common import PriPriConfig, edgefix, denoise, descale, antialias, regrain, scenefilter_ed, finalize
+from pripri_common import PriPriConfig, edgefix, denoise, descale, deband, antialias, regrain, scenefilter_ed, finalize
 
 from yt_common.automation import SelfRunner
 from yt_common.source import FileTrim, SimpleSource
@@ -26,7 +26,8 @@ def filter() -> vs.VideoNode:
     ef = edgefix(src)
     den = denoise(ef)
     rescale = descale(den)
-    aa = antialias(rescale)
+    deb = deband(rescale)
+    aa = antialias(deb)
     grain = regrain(aa)
     ed = scenefilter_ed(grain, src, ED)
     final = finalize(ed)

Princess Principal/02/02.vpy

@@ -1,6 +1,6 @@
 import vapoursynth as vs
 
-from pripri_common import PriPriConfig, edgefix, denoise, descale, antialias, regrain, scenefilter_ed, finalize
+from pripri_common import PriPriConfig, edgefix, denoise, descale, deband, antialias, regrain, scenefilter_ed, finalize
 
 from yt_common.automation import SelfRunner
 from yt_common.source import FileTrim, SimpleSource
@@ -26,7 +26,8 @@ def filter() -> vs.VideoNode:
     ef = edgefix(src)
     den = denoise(ef)
     rescale = descale(den)
-    aa = antialias(rescale)
+    deb = deband(rescale)
+    aa = antialias(deb)
     grain = regrain(aa)
     ed = scenefilter_ed(grain, src, ED)
     final = finalize(ed)

Princess Principal/03/03.vpy

@@ -1,6 +1,6 @@
 import vapoursynth as vs
 
-from pripri_common import PriPriConfig, edgefix, denoise, descale, antialias, regrain, scenefilter_ed, finalize
+from pripri_common import PriPriConfig, edgefix, denoise, descale, deband, antialias, regrain, scenefilter_ed, finalize
 
 from yt_common.automation import SelfRunner
 from yt_common.source import FileTrim, SimpleSource
@@ -26,7 +26,8 @@ def filter() -> vs.VideoNode:
     ef = edgefix(src)
     den = denoise(ef)
     rescale = descale(den)
-    aa = antialias(rescale)
+    deb = deband(rescale)
+    aa = antialias(deb)
     grain = regrain(aa)
     ed = scenefilter_ed(grain, src, ED)
     final = finalize(ed)

Princess Principal/04/04.vpy

@@ -1,6 +1,6 @@
 import vapoursynth as vs
 
-from pripri_common import PriPriConfig, edgefix, denoise, descale, antialias, regrain, scenefilter_ed, finalize
+from pripri_common import PriPriConfig, edgefix, denoise, descale, deband, antialias, regrain, scenefilter_ed, finalize
 
 from yt_common.automation import SelfRunner
 from yt_common.source import FileTrim, SimpleSource
@@ -26,7 +26,8 @@ def filter() -> vs.VideoNode:
     ef = edgefix(src)
     den = denoise(ef)
     rescale = descale(den)
-    aa = antialias(rescale)
+    deb = deband(rescale)
+    aa = antialias(deb)
     grain = regrain(aa)
     ed = scenefilter_ed(grain, src, ED)
     final = finalize(ed)

Princess Principal/05/05.vpy

@@ -1,6 +1,6 @@
 import vapoursynth as vs
 
-from pripri_common import PriPriConfig, edgefix, denoise, descale, antialias, regrain, scenefilter_ed, finalize
+from pripri_common import PriPriConfig, edgefix, denoise, descale, deband, antialias, regrain, scenefilter_ed, finalize
 
 from yt_common.automation import SelfRunner
 from yt_common.source import FileTrim, SimpleSource
@@ -26,7 +26,8 @@ def filter() -> vs.VideoNode:
     ef = edgefix(src)
     den = denoise(ef)
     rescale = descale(den)
-    aa = antialias(rescale)
+    deb = deband(rescale)
+    aa = antialias(deb)
     grain = regrain(aa)
     ed = scenefilter_ed(grain, src, ED)
     final = finalize(ed)

Princess Principal/06/06.vpy

@@ -1,6 +1,6 @@
 import vapoursynth as vs
 
-from pripri_common import PriPriConfig, edgefix, denoise, descale, antialias, regrain, scenefilter_ed, finalize
+from pripri_common import PriPriConfig, edgefix, denoise, descale, deband, antialias, regrain, scenefilter_ed, finalize
 
 from yt_common.automation import SelfRunner
 from yt_common.source import FileTrim, SimpleSource
@@ -26,7 +26,8 @@ def filter() -> vs.VideoNode:
     ef = edgefix(src)
     den = denoise(ef)
     rescale = descale(den)
-    aa = antialias(rescale)
+    deb = deband(rescale)
+    aa = antialias(deb)
     grain = regrain(aa)
     ed = scenefilter_ed(grain, src, ED)
     final = finalize(ed)

Princess Principal/07/07.vpy

@@ -1,6 +1,6 @@
 import vapoursynth as vs
 
-from pripri_common import PriPriConfig, edgefix, denoise, descale, antialias, regrain, scenefilter_ed, finalize
+from pripri_common import PriPriConfig, edgefix, denoise, descale, deband, antialias, regrain, scenefilter_ed, finalize
 
 from yt_common.automation import SelfRunner
 from yt_common.source import FileTrim, SimpleSource
@@ -30,7 +30,8 @@ def filter() -> vs.VideoNode:
     rescale = descale(den)
     rescalem = descale(den, mask=True)
     rescale = replace_ranges(rescale, rescalem, [(31722, 34767)])
-    aa = antialias(rescale)
+    deb = deband(rescale)
+    aa = antialias(deb)
     grain = regrain(aa)
     ed = scenefilter_ed(grain, src, ED)
     final = finalize(ed)

Princess Principal/08/08.vpy

@@ -1,6 +1,6 @@
 import vapoursynth as vs
 
-from pripri_common import PriPriConfig, edgefix, denoise, descale, antialias, regrain, scenefilter_ed, finalize
+from pripri_common import PriPriConfig, edgefix, denoise, descale, deband, antialias, regrain, scenefilter_ed, finalize
 
 from yt_common.automation import SelfRunner
 from yt_common.source import FileTrim, SimpleSource
@@ -26,7 +26,8 @@ def filter() -> vs.VideoNode:
     ef = edgefix(src)
     den = denoise(ef)
     rescale = descale(den)
-    aa = antialias(rescale)
+    deb = deband(rescale)
+    aa = antialias(deb)
     grain = regrain(aa)
     ed = scenefilter_ed(grain, src, ED)
     final = finalize(ed)

Princess Principal/09/09.vpy

@@ -1,6 +1,6 @@
 import vapoursynth as vs
 
-from pripri_common import PriPriConfig, edgefix, denoise, descale, antialias, regrain, scenefilter_ed, finalize
+from pripri_common import PriPriConfig, edgefix, denoise, descale, deband, antialias, regrain, scenefilter_ed, finalize
 
 from yt_common.automation import SelfRunner
 from yt_common.source import FileTrim, SimpleSource
@@ -26,7 +26,8 @@ def filter() -> vs.VideoNode:
     ef = edgefix(src)
     den = denoise(ef)
     rescale = descale(den)
-    aa = antialias(rescale)
+    deb = deband(rescale)
+    aa = antialias(deb)
     grain = regrain(aa)
     ed = scenefilter_ed(grain, src, ED)
     final = finalize(ed)

Princess Principal/10/10.vpy

@@ -1,6 +1,6 @@
 import vapoursynth as vs
 
-from pripri_common import PriPriConfig, edgefix, denoise, descale, antialias, regrain, scenefilter_ed, finalize
+from pripri_common import PriPriConfig, edgefix, denoise, descale, deband, antialias, regrain, scenefilter_ed, finalize
 
 from yt_common.automation import SelfRunner
 from yt_common.source import FileTrim, SimpleSource
@@ -26,7 +26,8 @@ def filter() -> vs.VideoNode:
     ef = edgefix(src)
     den = denoise(ef)
     rescale = descale(den)
-    aa = antialias(rescale)
+    deb = deband(rescale)
+    aa = antialias(deb)
     grain = regrain(aa)
     ed = scenefilter_ed(grain, src, ED)
     final = finalize(ed)

Princess Principal/11/11.vpy

@@ -1,6 +1,6 @@
 import vapoursynth as vs
 
-from pripri_common import PriPriConfig, edgefix, denoise, descale, antialias, regrain, scenefilter_ed, finalize
+from pripri_common import PriPriConfig, edgefix, denoise, descale, deband, antialias, regrain, scenefilter_ed, finalize
 
 from yt_common.automation import SelfRunner
 from yt_common.source import FileTrim, SimpleSource
@@ -26,7 +26,8 @@ def filter() -> vs.VideoNode:
     ef = edgefix(src)
     den = denoise(ef)
     rescale = descale(den)
-    aa = antialias(rescale)
+    deb = deband(rescale)
+    aa = antialias(deb)
     grain = regrain(aa)
     ed = scenefilter_ed(grain, src, ED)
     final = finalize(ed)

Princess Principal/12/12.vpy

@@ -1,13 +1,14 @@
 import vapoursynth as vs
 
-from pripri_common import PriPriConfig, edgefix, denoise, descale, antialias, regrain, scenefilter_ed, finalize
+from pripri_common import PriPriConfig, edgefix, denoise, descale, deband, antialias, regrain, scenefilter_ed, finalize
 
 from yt_common.automation import SelfRunner
 from yt_common.source import FileTrim, SimpleSource
 
 from lvsfunc.misc import replace_ranges
+from lvsfunc.types import Range
 
-from typing import Optional
+from typing import List, Optional
 
 import os
 
@@ -20,6 +21,12 @@ SOURCE: SimpleSource = SimpleSource(
 )
 ED: Optional[int] = None
 
+DEBAND_STRONG: List[Range] = [
+    (32710, 32757),
+    (33104, 33388),
+    (34406, 34534),
+]
+
 
 def filter() -> vs.VideoNode:
     src = SOURCE.source()
@@ -28,7 +35,8 @@ def filter() -> vs.VideoNode:
     ef = edgefix(src)
     den = denoise(ef)
     rescale = descale(den)
-    aa = antialias(rescale)
+    deb = deband(rescale, strong=DEBAND_STRONG)
+    aa = antialias(deb)
     grain = regrain(aa)
     ed = scenefilter_ed(grain, src, ED)
     cr = replace_ranges(ed, src, [(29971, 32128)])

Princess Principal/ncop/ncop.vpy

@@ -1,6 +1,6 @@
 import vapoursynth as vs
 
-from pripri_common import PriPriConfig, edgefix, denoise, descale, antialias, regrain, finalize
+from pripri_common import PriPriConfig, edgefix, denoise, descale, deband, antialias, regrain, finalize
 
 from yt_common.automation import SelfRunner
 from yt_common.source import FileTrim, SimpleSource
@@ -21,7 +21,8 @@ def filter() -> vs.VideoNode:
     ef = edgefix(src)
     den = denoise(ef)
     rescale = descale(den)
-    aa = antialias(rescale)
+    deb = deband(rescale)
+    aa = antialias(deb)
     grain = regrain(aa)
     final = finalize(grain)
     src.set_output(1)

Princess Principal/pripri_common/__init__.py

@@ -1,3 +1,3 @@
 from .config import PriPriConfig  # noqa: F401
-from .filter import edgefix, denoise, descale, antialias, regrain, scenefilter_ed, finalize  # noqa: F401
+from .filter import edgefix, denoise, descale, deband, antialias, regrain, scenefilter_ed, finalize  # noqa: F401
 from . import filter  # noqa: F401

Princess Principal/pripri_common/filter.py

@@ -1,7 +1,7 @@
 import vapoursynth as vs
 import os
 
-from typing import Any, Dict, Optional
+from typing import Any, Dict, List, Optional
 
 from yt_common.antialiasing import sraa_clamp, mask_strong
 from yt_common.data import FSRCNNX
@@ -11,9 +11,11 @@ from awsmfunc import bbmod
 from kagefunc import retinex_edgemask
 from lvsfunc.denoise import bm3d
 from lvsfunc.kernels import Bicubic, Kernel
+from lvsfunc.mask import detail_mask
 from lvsfunc.misc import replace_ranges, scale_thresh
 from lvsfunc.scale import descale as ldescale
-from vardefunc import fsrcnnx_upscale, diff_creditless_mask
+from lvsfunc.types import Range
+from vardefunc import fsrcnnx_upscale, diff_creditless_mask, dumb3kdb
 from vsutil import depth
 from vsutil import Range as CRange
 
@@ -28,8 +30,11 @@ def edgefix(clip: vs.VideoNode) -> vs.VideoNode:
     return bb
 
 
-def denoise(clip: vs.VideoNode) -> vs.VideoNode:
+def denoise(clip: vs.VideoNode, sigma: float = 0.75, h: float = 0.4) -> vs.VideoNode:
-    return bm3d(clip, sigma=0.75, radius=1)
+    return core.std.ShufflePlanes([
+        bm3d(core.std.ShufflePlanes(clip, planes=0, colorfamily=vs.GRAY), sigma=sigma, radius=1),
+        clip.knlm.KNLMeansCL(d=3, a=1, h=h)
+    ], planes=[0, 1, 2], colorfamily=vs.YUV)
 
 
 def _nnedi3_double(clip: vs.VideoNode) -> vs.VideoNode:
@@ -55,6 +60,13 @@ def descale(clip: vs.VideoNode, kernel: Kernel = Bicubic(b=0, c=1/2), mask: bool
         else depth(ldescale(clip, height=720, kernel=kernel, upscaler=_fsrlineart, mask=None), 16)
 
 
+def deband(clip: vs.VideoNode, strong: Optional[List[Range]] = None) -> vs.VideoNode:
+    mask = detail_mask(clip)
+    deband = core.std.MaskedMerge(dumb3kdb(clip, radius=16, threshold=40), clip, mask)
+    deband_strong = core.std.MaskedMerge(dumb3kdb(clip, radius=16, threshold=50), clip, mask)
+    return replace_ranges(deband, deband_strong, strong or [])
+
+
 def antialias(clip: vs.VideoNode) -> vs.VideoNode:
     def _sraa_pp_dehalo(sraa: vs.VideoNode) -> vs.VideoNode:
         sraa = MaskedDHA(sraa, rx=2.4, darkstr=0.1, brightstr=0.75)

yt_common/yt_common/source.py

@@ -85,7 +85,7 @@ class SimpleSource(FileSource):
         return self.src
 
     def source(self) -> vs.VideoNode:
-        return depth(core.std.Splice([s.apply_trim(self._open(s.path)) for s in self.src]), 16)
+        return core.std.Splice([s.apply_trim(self._open(s.path)) for s in self.src])
 
 
 class DehardsubFileFinder(FileSource):