logo Sign In

g-force

User Group
Members
Join date
24-Sep-2004
Last activity
16-Jul-2020
Posts
662

Post History

Post
#313585
Topic
GOUT image stabilization - Released
Time
boba feta said:

I think that's pretty damn good actually, but I wouldn't mind seeing a few selected scenes considered to be some of the worst i.e: the stormtroopers finding the O Ring by the escape pod, R2 in the canyon and the landspeeder entering Mos Eisley. I think they all suffered terribly from the DVNR process.


Thanks for the compliment! I don't expect to be able to do anything to help with those areas. They will look more stable and sharper, but will still have the old artifacts. They are just too horrible, and all the information is gone. I'll encode some samples with these scenes soon.

-G

Post
#313049
Topic
GOUT image stabilization - Released
Time
Originally posted by: Oldschooljedi
Wow!

I did author your testclip to DVD and watched it on my widescreen-TV. This looks really great. I can't wait to see the script you used for this!

I'm glad you like it. I just realized that really fast motion stuff is too blurred though. I will keep working on it. In the mean time, I'm leaving the script as is, since it's the best so far without adversly affecting the quality in any way.

Originally posted by: boba feta
Were you not as vigorous with the stabilization script for that encode?


The last clip is actually the most vigorous that I've been, but since I'm applying the same script to the whole thing, some stabilization may be better in spots and not as good in others. I could do even better if I had different settings on each scene (less artifacting in some, better satabilization in others). I would like to get it the best I can for the whole movie first so that there are only a few select scenes that I need to change the settings.

Originally posted by: Anti-Matter

The "A long time ago..." card is a piece of cake; you need only ONE source frame to faithfully reproduce it. The title sequence is a bit trickier, but can be reproduced quite accurately in AfterEffects provided that the font is really NewsGoth.

If you are interested in pursuing this, let me know.


The "A long time ago..." is definitely one of the things that can be better easily using Avisynth, the scroll will definitely be trickier. I really wouldn't mind a good reproduction of the post 1979 scroll, since I don't think of this as the original theatrical release anyway. So yeah, I'm interested!

-G





Post
#312847
Topic
GOUT image stabilization - Released
Time
Originally posted by: Knightmessenger
It might rival the X0 project if they were not using the pre THX laserdiscs as well. Still I hope they are aware of the stuff you've done because if it restores detail the script might be of some use to them. Maybe you should see if you could compare some of your results.

Is there some script out there that could combine the vertical line resolution of the Pal laserdiscs with the horisontal detail of the Gout? Like know to use the NTSC scanlines but whereever there's an additional Pal line in between drop it in.


They may be able to do some of my stuff post process. I'm sure they are far enough along that they wouldn't want to do it to the raw capture. Here's to hoping that the X0 is even better than what I finally come up with.

It's a good idea about combining the PAL LD and the GOUT sources in some way. I have some ideas for this, but don't have the PAL capture to work with. [cough] new rip [/cough]

-G

Post
#312831
Topic
GOUT image stabilization - Released
Time
Originally posted by: Moth3r

However, you're not going to get results to rival the X0 project (IMHO, of course) unless you figure out a way to remove the "motion smearing" caused by the THX process DVNR. The X0 project got around this by using pre-THX laserdisc releases.

Didée mentions a "temporal sharpener" in this thread, but I don't think a working filter was ever produced.


Agreed! There is no way to remove all of the motion smearing from the GOUT. I wish I had a raw X0 capture of the pre-THX version to work with. I would never claim that the GOUT could ever be better than the X0 in that respect (but maybe in the parts that aren't smeared!?!?!).

Didee has let enough ideas out about his "temporal sharpener" that it looks like I can incorporate some version of his idea it into my local-motion compensation algorithm. More to come....

-G


Post
#312813
Topic
GOUT image stabilization - Released
Time
I've had some MAJOR breakthroughs in the last couple days with respect to local motion stabilization and dirt removal (results were so positive that I even wrote a script to share with the helpful folks at the Doom9 forum). This thing is rock solid. Stay tuned for some clips. I've also found out how to repair a TON of detail by collecting pixels from the same object in different frames. The results are a little preliminary (like as of before work this morning) but the results so far are breathtaking (I literally couldn't believe my eyes!).

This is really going to give the X0 project a run for it's money!

Like I said, stay tuned!

-G
Post
#311099
Topic
GOUT image stabilization - Released
Time
Moth3r,

I may have figured out why there is a discrepency between what I think looks like a good hue and what you used. Also, this would tell me that when I encode it, it's going to be darker (more reason for my added gamma correction) Discussion can be found here:

http://forum.doom9.org/showthread.php?s=&threadid=82217

What I'm wondering now is if your screencaps on the fanedit site are from the Avisynth script or from the encoded DVD. I'm assuming the encoded DVD, but I want to make sure.

I'll play around with the Colormatrix() plugin and try some test encodes.

-G
Post
#311015
Topic
GOUT image stabilization - Released
Time
Originally posted by: pittrek
g-force : I'm working on a restoration of all 6 movies to their theatrical versions, with bonus discs of course, most of it is done


Yeah, sorry, I remembered you said that in another thread after I posted last.

Are you thinking of using some of the anti-aliasing that Arnie.d and Moth3r have done and my image stabilization for your GOUT sources?

I'll be looking forward to seeing your work!

-G
Post
#310980
Topic
GOUT image stabilization - Released
Time
Originally posted by: boba feta
Wow. So some of the damage can be undone.

I'm not so sure that tey damaged the film during de-interlacing (although if it wasn't interlaced in the first place it'd be a lot better) but they only did half a job. From my understanding, you can de-interlace slowly and with high quality, or quickly and do post processing (like EEDI2) for decent results.

Originally posted by: Knightmessenger
What is the ringing? Is that like edge enhancement and was it on the laserdiscs. As for the dirt removal, are you doing spot correction?

Notice around the top of the right helmet in the elevator pic there is a white line above the helmet that follows the contour of the helmet. That's what I'm referring to as ringing. I am doing some very limited spot removal (so fast moving stars don't get lost).

Originally posted by: pittrek
Expect something big in a few weeks


Can't wait! any hints?

Originally posted by: Moth3r
I think the face of the rebel trooper looks too pink. As you know, I tweaked the hue slightly towards the yellow in my version.

I think your settings for fft3dfilter are too strong; the reduced grain makes the picture look a little too soft.

Bear in mind this is all subjective...


Agreed. Mine looks too pink. I think yours is a little too orange though. Somewhere inbetween maybe?
Agreed. The zoomed in screencaps convinced me. I'm going to back that off a bit.
It is subjective, that's why I need more opinions other than just mine. Or at least you've convinced me of what I already suspected!

BTW, I found a sizing error in the script. I will update now.

-G
Post
#310129
Topic
GOUT image stabilization - Released
Time
Originally posted by: Knightmessenger
All right, what is so bad about windows media player? The quality is better than quicktime or real. I have divx player and probably should try that but I only opened the file, didn't want to save it and it opened in wmp by default. It's not that important to me either, if it was I would have already made a couple of long posts asking a ton of questions by now.


I use WMP a LOT (old .exe version)! It's quick and dirty! Don't know why the clip won't play for you though.

-G
Post
#310092
Topic
GOUT image stabilization - Released
Time
I'll post some screen shots soon. These threads are much more fun with pretty pictures!

I've been working on the script some more. I've decided to back off the image stabilization a bit to make sure that there is no added wobble. On static sceens the stabilization is about half way between the original and my previous script, but now there is absolutely no problem with close up objects wobbling back and forth. I just didn't want to search for every scene that was a problem and hope that I cought them all. Don't worry, the stability is still much better than the original.

I've also noticed some ringing in certain scenes that is helped by turning on the deringing filter on mpeg2source. I'll post a pic of that too.

I've decided to do the do the fft3dfilter after the lanczos4resize so that it doesn't take as long. I had to re-tune the parameters, but I don't see any difference and it seems to run quicker now.

I'll update the posted script tonight.

Moth3r - fft3dfilter is pretty good. It also has some sharpening ability that I use to negate the effects of the eeid2. And as far as the saturation goes, when I look at your comparison pics, I think the original is a bit undersaturated, and I think yours is bit oversaturated, so I chose a value half way inbetween. This is all very subjective though, so my script only reflects how I want the picture to look.

Oldschooljedi - I didn't start using Avisynth until Arnie.d and Moth3r did the anti-aliasing either. It's been fun learning a new tool, but I'm still learning, so I don't think my script will ever be "finished". It might be interesting to start a thread devoted to the "script" and people can post suggestions to make it better.

-G