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lostfunc.py
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/
lostfunc.py
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from vapoursynth import core, YUV, GRAY
import vapoursynth as vs
import adjust, havsfunc as haf
import math
# VS port of a script by Didée http://forum.doom9.net/showthread.php?p=1402690#post1402690
# In my experience this filter works very good as a prefilter for SMDegrain().
# Filtering only luma seems to help to avoid ghost artefacts.
def DeSpot(o):
osup = o.mv.Super(pel=2, sharp=2)
bv1 = osup.mv.Analyse(isb=True, delta=1, blksize=8, overlap=4, search=4)
fv1 = osup.mv.Analyse(isb=False,delta=1, blksize=8, overlap=4, search=4)
bc1 = o.mv.Compensate(osup, bv1)
fc1 = o.mv.Compensate(osup, fv1)
clip = core.std.Interleave([fc1, o, bc1])
clip = clip.rgvs.Clense()
return clip.std.SelectEvery(cycle=3, offsets=1)
# fast_deblock https://forum.doom9.org/showthread.php?p=1780389#post1780389
# "Basically a low precision lite version of Oyster.Deblocking(), lower quality
# but like a million times faster" <-(lol, still slow)
# - note that chroma will not be processed.
# updated to latest Oyster version. Not really tested.
def fast_deblock(src, radius=6, h=3.2, lowpass="0.0:0.0 0.12:1024.0 1.0:1024.0"):
import Oyster
Oycore = Oyster.get_core()
MakeDiff = core.std.MakeDiff
MergeDiff = core.std.MergeDiff
MaskedMerge = core.std.MaskedMerge
ShufflePlanes = core.std.ShufflePlanes
colorspace = src.format.color_family
if colorspace != vs.GRAY:
src_color = src
src = ShufflePlanes(src, 0, vs.GRAY)
ref = Oyster.Basic(src, None, radius)
mask = Oycore.GenBlockMask(src)
cleansed = Oycore.NLMeans(ref, 0, 8, 4, h, ref, False)
ref = Oycore.FreqMerge(cleansed, ref, 9, lowpass)
src = Oycore.FreqMerge(cleansed, src, 9, lowpass)
clip = MaskedMerge(src, ref, mask, first_plane=True)
if colorspace != vs.GRAY:
clip = ShufflePlanes([clip, src_color], [0, 1, 2], vs.YUV)
return clip
# Stab function that uses DePanEstimate from "Depan" plugin which supports
# the range parameter. DePanEstimate from MvTools is missing that paramater.
# Function copied from https://github.com/HomeOfVapourSynthEvolution/havsfunc
##############################################################################
# Original script by g-force converted into a stand alone script by McCauley #
# latest version from December 10, 2008 #
##############################################################################
def Stab(clp, range=1, dxmax=4, dymax=4, mirror=0):
if not isinstance(clp, vs.VideoNode):
raise TypeError('Stab: This is not a clip')
temp = haf.AverageFrames(clp, weights=[1] * 15, scenechange=25 / 255)
inter = core.std.Interleave([core.rgvs.Repair(temp, haf.AverageFrames(clp, weights=[1] * 3, scenechange=25 / 255), 1), clp])
mdata = core.depan.DePanEstimate(inter, range=range, trust=0, dxmax=dxmax, dymax=dymax)
last = core.depan.DePan(inter, data=mdata, offset=-1, mirror=mirror)
return last[::2]
# Source: https://forum.doom9.org/showthread.php?t=174723
# toot: new "advanced-averaging" filter (ignores worst source)
# A better avisynth alternative is Median/MedianBlend - https://forum.doom9.org/showthread.php?t=170216
def toot(clipa, clipb, clipc):
absXYMinus = 'x y - abs'
absXZMinus = 'x z - abs'
absYZMinus = 'y z - abs'
xyAvg = core.std.Merge(clipa, clipb)
xzAvg = core.std.Merge(clipa, clipc)
yzAvg = core.std.Merge(clipb, clipc)
expr = '{0} {1} < {0} {2} < a c ? {1} {2} < b c ? ?'.format(absXYMinus, absXZMinus, absYZMinus)
return core.std.Expr([clipa, clipb, clipc, xyAvg, xzAvg, yzAvg], [expr])
# mfToon2 - VapourSynth version with fixes.
# UnsharpMask - Boxblur version added
# doom9: https://forum.doom9.org/showthread.php?t=174502
def MfTurd(src, twidth=None, theight=None, ssw=4, ssh=4, xstren=255, xthresh=255, sharpen=True,
strength=255, wdepth=16, wblur=1, wthresh=0.5, drange=64, dboost=1.0, dlimit=30,
doutput=None, show=False, scolor=[255,0,255], legacy=False):
"""Original avs fucntion by mf"""
def scale8(x, newmax):
return x * newmax // 0xFF
def Xsharpen(clip, strength=128, threshold=8):
"""Ported by Myrsloik"""
threshold = scale8(threshold, maxvalue)
return core.std.Expr([clip, clip.std.Maximum(planes=0), clip.std.Minimum(planes=0)],
['y x - x z - min {} < x z - y x - < z y ? {} * x {} * + x ?'
.format(threshold, strength / 256, (256 - strength) / 256), ''])
def UnsharpMask(clip, strength = 64, radius = 3, threshold = 8):
threshold = scale8(threshold, maxvalue)
blurclip = clip.std.BoxBlur(vradius=radius, hradius=radius, planes=0)
return core.std.Expr([clip, blurclip], ["x y - abs {} > x y - {} * x + x ?".format(threshold, strength/128), ""])
def CartoonEdges(clip, low=0, high=255):
"""Should behave like mt_edge(mode="cartoon")"""
low = scale8(low, maxvalue)
high = scale8(high, maxvalue)
edges = core.std.Convolution(clip, matrix=[0,-2,1,0,1,0,0,0,0], saturate=True)
return core.std.Expr(edges, ['x {high} >= {maxvalue} x {low} <= 0 x ? ?'
.format(low=low, high=high, maxvalue=maxvalue), ''])
def RobertsEdges(clip, low=0, high=255):
"""Should behave like mt_edge(mode="roberts")"""
low = scale8(low, maxvalue)
high = scale8(high, maxvalue)
edges = core.std.Convolution(clip, matrix=[0,0,0,0,2,-1,0,-1,0], divisor=2, saturate=False)
return core.std.Expr(edges, ['x {high} >= {maxvalue} x {low} <= 0 x ? ?'
.format(low=low, high=high, maxvalue=maxvalue), ''])
def Levels(clip, input_low, gamma, input_high, output_low, output_high, coring=True):
"""Equivalent to AviSynth's Levels
Stolen from havsfunc"""
gamma = 1 / gamma
divisor = input_high - input_low + (input_high == input_low)
tvLow = scale8(16, maxvalue)
tvHigh = [scale8(235, maxvalue), scale8(240, maxvalue)]
scaleUp = maxvalue / scale8(219, maxvalue)
scaleDown = scale8(219, maxvalue) / maxvalue
def get_lut1(x):
p = ((x - tvLow) * scaleUp - input_low) / divisor if coring else (x - input_low) / divisor
p = min(max(p, 0), 1) ** gamma * (output_high - output_low) + output_low
return min(max(math.floor(p * scaleDown + tvLow + 0.5), tvLow), tvHigh[0]) if coring else min(max(math.floor(p + 0.5), 0), maxvalue)
def get_lut2(x):
q = math.floor((x - neutralvalue) * (output_high - output_low) / divisor + neutralvalue + 0.5)
return min(max(q, tvLow), tvHigh[1]) if coring else min(max(q, 0), maxvalue)
last = core.std.Lut(clip, planes=[0], function=get_lut1)
if clip.format.color_family == GRAY:
return last
else:
return core.std.Lut(last, planes=[1, 2], function=get_lut2)
if twidth is None:
twidth = src.width
if theight is None:
theight = src.height
if show:
sharpen = False
ssw = twidth * ssw
ssh = theight * ssh
valuerange = (1 << src.format.bits_per_sample)
maxvalue = valuerange - 1
neutralvalue = round(maxvalue / 2)
strength = scale8(strength, maxvalue)
drange = scale8(drange, maxvalue)
dlimit = scale8(dlimit, maxvalue)
scolor = [scale8(x, maxvalue) for x in scolor]
sharp = UnsharpMask(src, 300, 4, 0)
sharp = core.std.MaskedMerge(sharp, src, src)
sharp = core.std.MaskedMerge(sharp, src, src)
cartoonedges = CartoonEdges(src, 3, 255)
cartoonedges = Levels(Levels(adjust.Tweak(cartoonedges,bright=drange),
scale8(60, maxvalue), dboost, maxvalue, 0, maxvalue),
0, dboost, dlimit, maxvalue, 0) \
.std.Inflate().std.Deflate().std.Deflate().std.Deflate()
robertsedges = RobertsEdges(src, 3, 255)
robertsedges = Levels(Levels(adjust.Tweak(robertsedges,bright=drange),
scale8(60, maxvalue), dboost, maxvalue, 0, maxvalue),
0, dboost, dlimit, maxvalue, 0).std.Inflate()
detailmaskpre = Levels(core.std.Expr([cartoonedges,robertsedges], ['x y * x y * * {} /'.format(valuerange ** 3),''])
.std.Convolution(matrix=[1,2,1,2,4,2,1,2,1]), 0, 1.0, scale8(190, maxvalue), 0, maxvalue)
if legacy:
# LOL
detailmask = sharp.std.Deflate()
else:
detailmask = detailmaskpre.std.Invert().std.Inflate().std.Invert()
white = src.std.Expr(['{}'.format(maxvalue),'{}'.format(neutralvalue)])
linemask = core.std.MaskedMerge(white, detailmask, src.std.Invert(), planes=0).std.Invert()
if strength != maxvalue:
linemask = Levels(linemask, 0, 1.0, maxvalue, 0, strength)
color = src.std.BlankClip(color=scolor)
if show:
sharp = color
dark = core.std.MaskedMerge(src, sharp, linemask, planes=0)
darkmerged = core.std.ShufflePlanes([dark,src], [0,1,2], YUV)
finaldark = dark if show else darkmerged
semifinal = src.resize.Bicubic(twidth, theight, filter_param_a=0, filter_param_b=0.75)
final = dark.resize.Bicubic(ssw, ssh, filter_param_a=0, filter_param_b=0.75)
final = Xsharpen(final, xstren, xthresh).resize.Bicubic(twidth, theight, filter_param_a=0, filter_param_b=0.75)
final = core.std.ShufflePlanes([final,semifinal], [0,1,2], YUV) \
.warp.AWarpSharp2(depth=wdepth // 2, blur=wblur, thresh=round(wthresh * 255))
return final if sharpen else finaldark