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 > General > Newbies

Reply
 
Thread Tools Search this Thread Display Modes
Old 20th May 2010, 20:36   #1  |  Link
pissed
Registered User
 
Join Date: May 2010
Posts: 15
Deinterlacing properly.

Hi; so essentially I would like to know how to deinterlace properly - as in 100% no ghost frames?

How do threshold's play into this?

Is there a general guide as to what to do?

Last edited by Guest; 20th May 2010 at 21:19. Reason: 6
pissed is offline   Reply With Quote
Old 21st May 2010, 07:54   #2  |  Link
7ekno
Guest
 
Posts: n/a
What sort of framerate (time) are you looking to spend and what output do you require (25->50fps ok, or want 29.97 to 24, etc)?!?

Avisynth with TMGC is probably the best deinterlacer there is, but it's slow

Bobbing also produces reasonable results, but doubles the frame rate ...

7
  Reply With Quote
Old 21st May 2010, 12:47   #3  |  Link
pissed
Registered User
 
Join Date: May 2010
Posts: 15
Material is NTSC (not FILM) at 29.97fps, with BFF.... kernel/field/telecide/yadif pretty much all the deinterlacers that I've tried result in ghosting. I suspect I need to tweak setting, probably theshold parameters, but generally I don't know what im looking for...

Where can I download TGMC filter... google isnt providing any direct links :'(

Last edited by pissed; 21st May 2010 at 12:50.
pissed is offline   Reply With Quote
Old 21st May 2010, 18:02   #4  |  Link
txporter
Registered User
 
Join Date: Nov 2009
Posts: 110
Need more information on the source (and small sample uploaded would be best). It could have blends. Is it a PAL video converted to NTSC DVD?
txporter is offline   Reply With Quote
Old 21st May 2010, 18:09   #5  |  Link
manono
Moderator
 
Join Date: Oct 2001
Location: Hawaii
Posts: 7,406
Quote:
Originally Posted by pissed View Post
Material is NTSC (not FILM) at 29.97fps, with BFF.... kernel/field/telecide/yadif pretty much all the deinterlacers that I've tried result in ghosting.(
Some of the deinterlacers mentioned don't leave ghosting behind. I suspect your problem isn't the choice of deinterlacer (since you'll get ghosting however you deinterlace), but using a deinterlacer at all if it isn't called for, if the problem is, as I and txporter suspect, a PAL2NTSC field-blended source. Advice without a sample to examine is kind of hit-or-miss anyway, so please make available to us a 10 second untouched sample, one showing steady movement.
manono is offline   Reply With Quote
Old 22nd May 2010, 17:38   #6  |  Link
pissed
Registered User
 
Join Date: May 2010
Posts: 15
http://www.mediafire.com/?nbhwzutddfm

10 sec clip. Video is kinda old, which I think makes the situation worse...
pissed is offline   Reply With Quote
Old 22nd May 2010, 19:45   #7  |  Link
Guest
Guest
 
Join Date: Jan 2002
Posts: 21,901
Yup, it's field-blended.
Guest is offline   Reply With Quote
Old 22nd May 2010, 22:24   #8  |  Link
pissed
Registered User
 
Join Date: May 2010
Posts: 15
Quote:
Originally Posted by neuron2 View Post
Yup, it's field-blended.
What to do now?
pissed is offline   Reply With Quote
Old 23rd May 2010, 01:45   #9  |  Link
Guest
Guest
 
Join Date: Jan 2002
Posts: 21,901
Try searching for the solution.
Guest is offline   Reply With Quote
Old 23rd May 2010, 02:17   #10  |  Link
manono
Moderator
 
Join Date: Oct 2001
Location: Hawaii
Posts: 7,406
The easiest way to fix it is with:

Yadif(Mode=1)
RePAL()

Both filters can be found here:

http://avisynth.org/warpenterprises/
manono is offline   Reply With Quote
Old 24th May 2010, 17:53   #11  |  Link
txporter
Registered User
 
Join Date: Nov 2009
Posts: 110
manono's approach is easy and pretty fast. If you are noticing bob flicker that is annoying to you, you can try TempgaussMC in place of Yadif. It is MUCH slower than simply using Yadif, but the results are great. You can also use srestore(frate=25) in place of repal() if you want to get exactly 25fps rather than 24.975fps.

I use something like this to restore PAL video from NTSC dvds:
Code:
setmtmode(5,0)
loadcplugin("C:\Program Files\Avisynth 2.5\plugins\yadif.dll")
MPEG2Source("Path\To\video.d2v")
setmtmode(2)
TempGaussMC_beta2(1,1,1,edimode="Yadif",Smode=1,SLmode=1,Sbb=0,SVthin=0.0)
#repal()
srestore(frate=25)
removegrain(1)
Settings that I am using for TempGaussMC are faster but compromise a bit on quality. I do not really notice the difference (although it seems that using edimode="Yadif" over nnedi2 or nnedi3 leads to sharper images and it is faster). You can look through the .avsi script for TempGaussMC to get a feel for the settings.
txporter is offline   Reply With Quote
Reply

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 14:58.


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