2015-08-06, 06:49 PM
Do you align them and then just, for example, use Average() in Avisynth with 50% blending?
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2015-08-06, 09:23 PM
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2015-08-07, 03:35 PM
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Thanks! I want to try this out with the GOUT, just like you. How do you accomplish pixel-perfect aligning? Trial and error?
Edit: I just tried Photoshop's auto-align feature on two screenshots from PAL/NTSC GOUT (to get the scaling and boundaries). The results are better than what I could do manually, but still look worse than just PAL or NTSC without blending...
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2015-08-09, 01:33 AM
(2015-08-08, 10:42 PM)Intruder Wrote: Thanks! I want to try this out with the GOUT, just like you. How do you accomplish pixel-perfect aligning? Trial and error? Yes, trial and error - at least with Avisynth. SW: that's because NTSC ep4 & ep5 are better than PAL, where ep6 is the contrary... Try with an HDTV native 720p and 1080i; often you get a good result.
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2015-08-09, 02:22 AM
You were able to get good results from blending PAL and NTSC, but mine look worse than just "plain" NTSC. I haven't tried it with AviSynth yet though.
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2015-08-10, 10:06 AM
Everything depends from both version quality...
"you can't polish a turd"  hence, if one of the sources is not that good, *maybe* the final result could be not that good, either!But sometime is only an alignment problem, tough! 
2015-08-11, 08:06 AM
(This post was last modified: 2015-08-11, 01:40 PM by jerryshadoe.)
That's true... The old saying, "garbage in, garbage out" comes to mind. There are times where using one source will produce superior results to trying to overlay two different sources.
Andrea is right that sometimes it's just an alignment issue, but there are times where two different sources will just not align. This can be caused by a variety of factors, such as: different film stock, warping of film/frames, transcoding errors, etc. As is the case with a lot of this kind of work, trial and error is a HUGE part of the process. Be patient, try different things and you might just get lucky
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Yes, luck is part of the formula!
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2016-11-26, 04:34 PM
Often PAL DVDs have less details, even if PAL standard has an higher vertical resolution; this is, probably, due to NTSC/PAL conversion... but also, PAL often has more image on top and/or bottom... so, it's still possible to gain quality from a PAL DVD, adding its top/bottom image, and using a smaller percentage of its video for the merging - usually I use PAL 30% NTSC 70% when the latter is clearly better; it helps nevertheless - at least, with my experience.
It's still amazing to see how much a DVD could be improved using this technique... of course, you <b>must</b> add denoise, upscale, eventual color correction; but, if everything is done right, it's still possible to get a final result way better than any hardware upscale done by a disc player, or a software upscale done by your computer player. Star Wars EP1 deleted scene 4 http://screenshotcomparison.com/comparison/191887 |
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