#1  
11-14-2020, 03:49 PM
HDBoxing HDBoxing is offline
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Hi guys, I am trying to understand what I am seeing and ask if there is a way to correct this issue. This is 10 second clip running at 25% speed of a 1983 VHS tape. These horizontal lines appear and disappear constantly throughout the tape. They are on the tape itself and not an artifact from the capture.

Can this be corrected since it is an intermittent issue?
https://www.youtube.com/watch?v=P_OM...ature=youtu.be
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  #2  
11-15-2020, 07:03 AM
Hushpower Hushpower is offline
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Looks like Interlacing to me. VHS captures will be interlaced (check your file in Mediainfo: it will tell you if it is interlaced), but can be deinterlaced by:

- Your video editor, by exporting to a Progressive format eg MP4;
- Virtual Dub using a Deinterlacing filter eg I use Muksun;
- AVISynth eg using QTGMC.
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  #3  
11-15-2020, 02:56 PM
latreche34 latreche34 is online now
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If he means by "the artifacts are on the tape itself" by viewing it directly from the VCR to TV then the contents on the tape being recorded from badly de-interlaced source.
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  #4  
11-17-2020, 05:37 AM
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Stuff like this pisses me off.
OP never replied.
OP deleted Youtube video.

"horizontal lines" are almost always a video novice not understanding interlace.

But it goes beyond that. There are correct and incorrect/wrong ways to handle interlace. With replies, with attached samples, we could have helped this person.

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  #5  
11-17-2020, 06:04 AM
Hushpower Hushpower is offline
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I'm pretty sure this was it:


Attached Files
File Type: mp4 Sample.mp4 (1.18 MB, 14 downloads)
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  #6  
11-17-2020, 06:18 AM
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lordsmurf lordsmurf is online now
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Quote:
Originally Posted by Hushpower View Post
I'm pretty sure this was it:
Cache?

That shows some sort of interlace situation.
Either simple presence of interlace, or screwed-up interlace from bad cropping/etc.

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  #7  
11-17-2020, 06:29 AM
Hushpower Hushpower is offline
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Quote:
Cache?
Touche!

I save a lot of the posted videos to look at them properly/play with them in VDub.
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