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Moth3r

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Join date
26-Oct-2004
Last activity
16-Jul-2017
Posts
4,892

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Post
#296898
Topic
Info: GOUT Anti-aliasing
Link
https://originaltrilogy.com/post/id/296898/action/topic#296898
Time
EEDI2() works nicely on diagonal lines, but I haven't yet found a way to reduce the aliasing on edges which are near horizontal.

Anyway, what this thread needs is some more screenshots and some example scripts (so I can steal the script that gives the best result ). Here's my contribution (note, resized to 1:1 pixel aspect ratio for comparison):

http://img181.imageshack.us/img181/3153/originalvo9.png
Original

http://img168.imageshack.us/img168/6232/processedqx3.png
Processed

Script so far:
source=mpeg2source("e:\project.d2v").crop(6,102,-2,-104).eedi2()
backward_vec2 = source.MVAnalyse(isb = true, delta = 2, pel = 2, overlap=4, sharp=1, idx = 1)
backward_vec1 = source.MVAnalyse(isb = true, delta = 1, pel = 2, overlap=4, sharp=1, idx = 1)
forward_vec1 = source.MVAnalyse(isb = false, delta = 1, pel = 2, overlap=4, sharp=1, idx = 1)
forward_vec2 = source.MVAnalyse(isb = false, delta = 2, pel = 2, overlap=4, sharp=1, idx = 1)
source.MVDegrain2(backward_vec1,forward_vec1,backward_vec2,forward_vec2,thSAD=400,idx=1)
limitedsharpenfaster(dest_x=720, dest_y=366)
addborders(0,57,0,57)
Arnie can you post the same frame (4451) from your script?
Post
#296486
Topic
How to use HuffYUV
Link
https://originaltrilogy.com/post/id/296486/action/topic#296486
Time
Pass thru just passes the video through the filter untouched - i.e. does nothing.

Read here to learn about attributes:
http://trevlac.us/colorCorrection/colorTools.html

Just look at the luma channel, waveform monitor for basic black and white level calibration. Use the vectorscope for saturation.

Hot pixel scan is supposed to show pixels with an RGB value that will clip on analogue displays. The theoretical max. IRE is 100, although it doesn't hurt to go a bit higher. The default settings will turn pixels with IRE value 110 and above black. I shouldn't worry about this mode too much.
Post
#296448
Topic
Info Wanted: Moth3r's PAL trilogy vs. anamorphically enhanced GOUT's
Link
https://originaltrilogy.com/post/id/296448/action/topic#296448
Time
Difficult to give a timeframe because I haven't actually started anything yet, but it is something I'd like to do - if only to demonstrate to LFL how crap the GOUT is. There are a couple of other projects I want to tackle first. So, expect Moth3r V2 ANH sometime after the X0 project releases TESB!

I wished I'd used the same sharpness setting - halos and all - for ROTJ that I did with the other two. Another reason why I want to do a V2.

And I would use the audio that Belbucus ripped off the laserdiscs rather than the Dolby Digital track off the GOUT.
Post
#296378
Topic
Info Wanted: Moth3r's PAL trilogy vs. anamorphically enhanced GOUT's
Link
https://originaltrilogy.com/post/id/296378/action/topic#296378
Time
No, for some reason (probably that the market in the UK was even smaller than in the rest of Europe) we never got the '95 release on LD.

Fortunately, the French releases had an English title crawl, and the subtitles appear in the lower black letterbox bar so it's simple enough to crop them out them when making a DVD from a LD capture.
Post
#296364
Topic
Info Wanted: Moth3r's PAL trilogy vs. anamorphically enhanced GOUT's
Link
https://originaltrilogy.com/post/id/296364/action/topic#296364
Time
Originally posted by: Knightmessenger
So was the Faces set in the UK on vhs only? What about the Definitive Collection? What pre THX laserdisc versions were available in Pal and widescreen?
There was no European equivalent to the 1993 DC set.

The Euro equivalent to the 1995 US Faces releases are the THX discs with the John Alvin artwork, released as singles in France and Germany and a boxed set ("coffret") in France only (and only on VHS in the UK). The singles are dubbed in their respective languages, while the boxed set is in English with French subtitles.

There were some pre-THX widescreen PAL releases in France but according to Laserman they were very poor quality.

The Laserdisc Database has a handy search function; here is a search returning all widescreen PAL releases in the Star Wars collection:
http://www.lddb.com/search.php?adv_search=*&video=2&picture=2&collection=11
Post
#296279
Topic
Info Wanted: Moth3r's PAL trilogy vs. anamorphically enhanced GOUT's
Link
https://originaltrilogy.com/post/id/296279/action/topic#296279
Time
Originally posted by: Rebelscum
I hear the PAL GOUT is just a resized NTSC version, stretched to fit more lines. Yes, this is correct.
Also, would it make any difference if you used the NTSC or PAL GOUT for the anamorphic enhancement? Which would be better?
No, there's no significant difference, although the NTSC GOUT is marginally sharper.Doesn't the PAL laserdisc have more image resolution and a sharper image than the PAL GOUT?
Vertically, yes. The PAL format has 576 visible lines. For a letterboxed film about 320 of these lines are actual image. The NTSC laserdisc master that was used for both the NTSC and PAL GOUT only has about 270 lines of image - and these have been blurred for the DVDs.

Vertical resolution is easy to explain because it's related to the number of scan lines. Horizontal resolution of laserdiscs is harder to understand because it's related to the analogue bandwidth of the format, which is about 5.5MHz or 440 lines. DVD's analogue equivalent is 6.75MHz or 540 lines - which means there is more horizontal detail on the GOUT (this might also explain why there is more grain evident).

But there are several other things to consider. The PAL ANH laserdisc does not seem to exhibit as much gate weave or "telecine wobble" that you see on the GOUT and the NTSC LDs. Also, there is slightly less dirt on the film in some of the shots (but a dirty great burn mark in another shot). The PAL LD players produce a signal with more video noise than players like the X0, so some noise filtering is required which could affect the amount of detail present. Laserdisc contains composite video, so any capture process has to split chroma and luma which can lead to dot crawl. Both the GOUT and the THX laserdiscs suffer from DVNR smearing; this is why the X0 project - and Moth3r V2 if it ever goes ahead - will be supplemented with captures from the pre-THX laserdiscs.