[HELP] Video 8 PAL capture/upscale

[Miranda]

I'm trying to QTGMC and upscale a PAL capture from Video 8 footage filmed back in the 1990s. However, there seems to be a strange faint horizontal lines texture over the entire image which looks worse when upscaled.

Any suggestions?

Link -> Sample clip

[humanoid86]

...a strange faint horizontal lines texture over...

it's an artifact due to deinterlacing (fixes: bottom field first)

try the top field first

look https://drive.google.com/file/d/1xQXd2Dv...share_link

[Selur]

Only had a quick look.
Switching to tff seems wrong (if you are bobbing).
My first try would be setting 'Preset' to 'Custom', enable 'EZDenoise' and set it to something like 4 or higher. (you can set the base preset to Fast)

Cu Selur

[Miranda]

Thanks for the suggestion. However, when I change QTGMC to "Custom" and set EZdenoise, I'm unable to get a preview window to open.

[Selur]

Strangely using basically the same script:

# Imports
import vapoursynth as vs
import os
import ctypes
# Loading Support Files
Dllref = ctypes.windll.LoadLibrary("i:/Hybrid/64bit/vsfilters/Support/libfftw3f-3.dll")
import sys
# getting Vapoursynth core
core = vs.core
# Import scripts folder
scriptPath = 'i:/Hybrid/64bit/vsscripts'
sys.path.insert(0, os.path.abspath(scriptPath))
# Loading Plugins
core.std.LoadPlugin(path="i:/Hybrid/64bit/vsfilters/GrainFilter/RemoveGrain/RemoveGrainVS.dll")
core.std.LoadPlugin(path="i:/Hybrid/64bit/vsfilters/GrainFilter/AddGrain/AddGrain.dll")
core.std.LoadPlugin(path="i:/Hybrid/64bit/vsfilters/DenoiseFilter/FFT3DFilter/fft3dfilter.dll")
core.std.LoadPlugin(path="i:/Hybrid/64bit/vsfilters/DenoiseFilter/DFTTest/DFTTest.dll")
core.std.LoadPlugin(path="i:/Hybrid/64bit/vsfilters/Support/EEDI3m.dll")
core.std.LoadPlugin(path="i:/Hybrid/64bit/vsfilters/ResizeFilter/nnedi3/vsznedi3.dll")
core.std.LoadPlugin(path="i:/Hybrid/64bit/vsfilters/Support/libmvtools.dll")
core.std.LoadPlugin(path="i:/Hybrid/64bit/vsfilters/Support/scenechange.dll")
core.std.LoadPlugin(path="i:/Hybrid/64bit/vsfilters/Support/fmtconv.dll")
core.std.LoadPlugin(path="i:/Hybrid/64bit/vsfilters/MiscFilter/MiscFilters/MiscFilters.dll")
core.std.LoadPlugin(path="i:/Hybrid/64bit/vsfilters/DeinterlaceFilter/Bwdif/Bwdif.dll")
core.std.LoadPlugin(path="i:/Hybrid/64bit/vsfilters/SourceFilter/LSmashSource/vslsmashsource.dll")
# Import scripts
import edi_rpow2
import havsfunc
# source: 'C:\Users\Selur\Desktop\catriona-sample.mov'
# current color space: YUV420P8, bit depth: 8, resolution: 720x576, fps: 25, color matrix: 470bg, yuv luminance scale: limited, scanorder: bottom field first
# Loading C:\Users\Selur\Desktop\catriona-sample.mov using LWLibavSource
clip = core.lsmas.LWLibavSource(source="C:/Users/Selur/Desktop/catriona-sample.mov", format="YUV420P8", stream_index=0, cache=0, fpsnum=25, prefer_hw=0)
# Setting detected color matrix (470bg).
clip = core.std.SetFrameProps(clip, _Matrix=5)
# Setting color transfer info (470bg), when it is not set
clip = clip if not core.text.FrameProps(clip,'_Transfer') else core.std.SetFrameProps(clip, _Transfer=5)
# Setting color primaries info (BT.601 PAL), when it is not set
clip = clip if not core.text.FrameProps(clip,'_Primaries') else core.std.SetFrameProps(clip, _Primaries=5)
# Setting color range to TV (limited) range.
clip = core.std.SetFrameProp(clip=clip, prop="_ColorRange", intval=1)
# making sure frame rate is set to 25
clip = core.std.AssumeFPS(clip=clip, fpsnum=25, fpsden=1)
clip = core.std.SetFrameProp(clip=clip, prop="_FieldBased", intval=1) # bff
                                                                      
                                                                    
# Deinterlacing using QTGMC
clip = havsfunc.QTGMC(Input=clip, Preset="Slower", InputType=0, TFF=False, TR2=1, SourceMatch=0, Lossless=0, EZDenoise=5.00, NoisePreset="Fast") # new fps: 50
# Making sure content is preceived as frame based
clip = core.std.SetFrameProp(clip=clip, prop="_FieldBased", intval=0) # progressive
# adjusting frame count and rate with sRestore
clip = havsfunc.srestore(source=clip, frate=23.9760, omode=6, speed=9, thresh=16, mode=2)
# cropping the video to 692x554
clip = core.std.CropRel(clip=clip, left=14, right=14, top=10, bottom=12)
clip = core.std.AddBorders(clip=clip, left=0, right=0, top=0, bottom=2) # add borders to archive mod 4 (NNEDI3(CL)) - 692x556
# resizing using ZNEDI3
# current: 692x556 target: 1440x1080 -> pow: 4
clip = edi_rpow2.nnedi3_rpow2(clip=clip, rfactor=4) # 2768x2224
clip = core.std.CropRel(clip=clip, left=0, right=0, top=0, bottom=8) # removing borders (NNEDI3(CL)) -  2768x2216
# adjusting resizing
clip = core.fmtc.resample(clip=clip, w=1440, h=1080, kernel="lanczos", interlaced=False, interlacedd=False)# before YUV420P8 after YUV420P16
# letterboxing 1440x1080 to 1920x1080
clip = core.std.AddBorders(clip=clip, left=240, right=240, top=0, bottom=0)
# adjusting output color from: YUV420P16 to YUV420P10 for x265Model
clip = core.resize.Bicubic(clip=clip, format=vs.YUV420P10, range_s="limited", dither_type="error_diffusion")
# set output frame rate to 23.976fps (progressive)
clip = core.std.AssumeFPS(clip=clip, fpsnum=24000, fpsden=1001)
# Output
clip.set_output()

here works fine.

Does the Vapoursynth Preview show an error?

[Miranda]

When I select preview, nothing happens at all. If I de-select the EZDenoise option then preview works fine. I'll try re-launching Hybrid.

---

Still no luck after relaunching Hybrid.

[Selur]

Can you create and share a debug output of you trying to open the Vapoursynth Preview?

[Miranda]

Debug output.

[Selur]

Strange, send you a link to my latest dev version, does this also happen with that version?

[Miranda]

Sadly same thing. I will try on my Mac.