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 > Avisynth Usage

Thread Tools Search this Thread Display Modes
Prev Previous Post   Next Post Next
Old 21st June 2016, 22:28   #1  |  Link
Registered User
Join Date: Jul 2014
Posts: 2
Help correcting de-interlacing problems, please.


I have a VHS tape, recorded many years ago on a consumer VHS-C camera. What I have now is a second-generation dub on a VHS tape, made from the original VHS-C tape.

A while back, I borrowed a DVD recorder from someone, with the hopes of getting a digital copy of this video. The results were okay - not horrible, but I could only get MPEG-2 video from the device.

Wanting to get an uncompressed good quality capture of the tape, with the aim of doing post-processing to improve the image, I sent my tape in to a 'professional' capture facility and paid them to capture it for me. Why? Well, they advertised that they had professional S-VHS decks, external TBCs and were able to provide uncompressed video. The VHS has quite a few dropped frames and horizontal lines in certain parts, so this was an attractive option.

They didn't end up delivering uncompressed video - simply another MPEG-2 file - but that's besides the point. Their TBC noticeably helped the rough parts of the video. The problem, however, is that they badly deinterlaced the result.

Here is a detail (so that the de/interlace effects can be dramatically seen) from one of the frames of the DVD recorder capture I made:
Name:  01.jpg
Views: 247
Size:  45.6 KB

Compare that to the exact same frame from the capture I got from the production house:
Name:  02.jpg
Views: 245
Size:  37.8 KB

Notice how both fields seem to be blended together. This motion smearing effect appears throughout the video, and is horribly annoying. Their capture is better in a lot of other ways, though, so I'd like to be able to salvage it.

For comparison, here's the same frame again, from my DVD recorder capture, run through the Yadif filter, showing what a 'correct' deinterlace of that specific frame should achieve:
Name:  03.jpg
Views: 293
Size:  39.4 KB

So my question: is there any way to "re-interlace" this footage? As in, separate the blurred end product back into the original field order? Or, at least, fix this issue and end up with non-ugly deinterlaced footage? Ideally I'd like interlaced footage, but at this point I would be grateful for any kind of improvement!
3hj is offline   Reply With Quote

deinterlaced, deinterlacing, disappointment, interlaced, interlacing

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 10:05.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2023, vBulletin Solutions Inc.