Welcome to Doom9's Forum, THE in-place to be for everyone interested in DVD conversion.

Before you start posting please read the forum rules. By posting to this forum you agree to abide by the rules.

 

Go Back   Doom9's Forum > Capturing and Editing Video > Capturing Video

Reply
 
Thread Tools Search this Thread Display Modes
Old 13th February 2023, 22:59   #1  |  Link
xiaNaix
Registered User
 
Join Date: May 2002
Posts: 19
Noisy Nose in VHS Capture

I have a tape circa 1985 that I believe is a 2nd gen transfer from a VHS camcorder. I have been able to clean it up somewhat but there is some weird noise around this individual's nose that I can't seem to get rid of. I'm not sure if it's a field issue, motion blur from the camera moving or what.

The clip is a few seconds of unprocessed Lagarith avi...
https://www.mediafire.com/file/k0r8w...NOSEY.avi/file

The issue is present before deinterlacing with QTGMC so it may have just been baked into the tape. If anyone has any ideas I'd appreciate it.
Attached Images
 

Last edited by xiaNaix; 13th February 2023 at 23:03.
xiaNaix is offline   Reply With Quote
Old 14th February 2023, 01:09   #2  |  Link
Emulgator
Big Bit Savings Now !
 
Emulgator's Avatar
 
Join Date: Feb 2007
Location: close to the wall
Posts: 1,531
Looks like a CCD bleeding fault, triggered by brighter parts, propagating in scan direction.
Here the nose is brightest, pulling brightness from the following contents for a few µs.
Can be mended by a 1-dimensional (x-axis only) convolution filter which got to be made absolute and differential sensitive.
__________________
"To bypass shortcuts and find suffering...is called QUALity" (Die toten Augen von Friedrichshain)
"Data reduction ? Yep, Sir. We're that issue working on. Synce invntoin uf lingöage..."
Emulgator is online now   Reply With Quote
Old 19th March 2023, 07:15   #3  |  Link
Mounir
Registered User
 
Join Date: Nov 2006
Posts: 773
Try with Spotless that should get rid off most of it
https://imgsli.com/MTYzMTQ3

Quote:
AVISource("NOSEY.avi")
assumetff()
###########
assumetff()
ConvertToYV16(interlaced=true)
orig=last
ev=orig.assumetff().separatefields().selecteven()
od=orig.assumetff().separatefields().selectodd()
ev
ue_chroma = UToY(ev)
ve_chroma = VToY(ev)
YToUV(ue_chroma, ve_chroma)
MergeLuma(ev)
ev_filtered=last
od
uo_chroma = UToY(od)
vo_chroma = VToY(od)
YToUV(uo_chroma, vo_chroma)
MergeLuma(od)
od_filtered=last
interleave(ev_filtered,od_filtered).SpotLess()
assumefieldbased().assumetff().weave()
#
qtgmc(Preset="fast",edithreads=3)
SelectEven()
Mounir is offline   Reply With Quote
Reply

Tags
avisynth, capture, noise, vhs

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT +1. The time now is 15:19.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.