Avisynth help

Mildragon · 3rd October 2015, 10:06

Could somebody tell me why do these horizontal lines appear in this video sample and reccomend me an avisynth script to fix it?

Here's the sample:

https://www.sendspace.com/file/fagbyz

Thanks in advance.

Reel.Deel · 3rd October 2015, 12:47

Your sample has been vertically resized before deinterlacing/IVTC. Unless you have the original video there's not much that can be done. Take a loot at these threads:
http://forum.doom9.org/showthread.php?t=172605
http://forum.doom9.org/showthread.php?t=170813

johnmeyer · 3rd October 2015, 17:49

I participated in the second thread, and we came up with some pretty decent improvements. However, even with those improvements, the resulting video was still horrible compared to what it could have been if the re-sizing had been done correctly. My advice is to never deinterlace unless you are resizing, in which case you must deinterlace. It is not optional.

So, if you have access to the original source, go back and do the video processing correctly this time.

Mildragon · 6th October 2015, 18:23

Here's a sample from the source. If anyone could help...

https://www.sendspace.com/file/nn4lc1

3rd October 2015, 10:06	#1 \| Link
Mildragon Registered User Join Date: Oct 2011 Posts: 39	Avisynth help Could somebody tell me why do these horizontal lines appear in this video sample and reccomend me an avisynth script to fix it? Here's the sample: https://www.sendspace.com/file/fagbyz Thanks in advance.

3rd October 2015, 12:47	#2 \| Link
Reel.Deel Registered User Join Date: Mar 2012 Location: Texas Posts: 1,666	Your sample has been vertically resized before deinterlacing/IVTC. Unless you have the original video there's not much that can be done. Take a loot at these threads: http://forum.doom9.org/showthread.php?t=172605 http://forum.doom9.org/showthread.php?t=170813

3rd October 2015, 17:49	#3 \| Link
johnmeyer Registered User Join Date: Feb 2002 Location: California Posts: 2,695	I participated in the second thread, and we came up with some pretty decent improvements. However, even with those improvements, the resulting video was still horrible compared to what it could have been if the re-sizing had been done correctly. My advice is to never deinterlace unless you are resizing, in which case you must deinterlace. It is not optional. So, if you have access to the original source, go back and do the video processing correctly this time.

6th October 2015, 18:23	#4 \| Link
Mildragon Registered User Join Date: Oct 2011 Posts: 39	Here's a sample from the source. If anyone could help... https://www.sendspace.com/file/nn4lc1