View Full Version : Upsizing a DVD to ~HDTV res, what methods are current nowadays?
Chainmax
5th March 2007, 16:40
I'm going to take a hold of "Hackers" on DVD and was thinking of making an HDTV-ish (1280x544 since it's 2.35:1) version just for the fun of it. I figure a good way to do it would be to use SeeSaw to bring out more detail, then do a 2x upsize with EEDI2, then add Spline36Resize(1280,544) and finally put LimitedSharpenFaster(SMode=4) to offset the smoothing caused by the upsizing, maybe finishing with AddGrain(2,0,0).
I was wondering if that seemed ok with you or if you think there are better methods like MultiSWAR, IIP or some other combination of filters.
*.mp4 guy
5th March 2007, 18:43
It would be easier to answer that With a clip or a screenshot from the source. Different upsizing methods work well on different quality sources, some methods (like eedi) work much better on certain types of content then others.
Chainmax
5th March 2007, 20:53
Ok, I'll post a sample once I receive the DVD.
Chainmax
8th March 2007, 20:32
From a theoretical standpoint, what would be the differences between my approach and MultiSWAR? Also, if I wound up using MultiSWAR, would it be a good idea to run SeeSaw before it so it has more detail to work with?
SeeMoreDigital
8th March 2007, 20:38
Why the cross-post: -
http://forum.doom9.org/showthread.php?t=123051
*.mp4 guy
8th March 2007, 21:33
Multiswar uses Iterative resizing steps with awarpsharp on each step to avoid aliasing, along with masking and sharpening to bring out detail. From a theoretical standpoint its just a way to avoid aliasing when using a normal resizer by using postprocessing of the resized results. The method you outlined would use a specialty resizing method to avoid aliasing, then post process it to bring out sharpness. Both ways have merits Multiswar would be more detailed and "solid" looking, eedi+sharpening would have less aliasing and be smoother.
Chainmax
9th March 2007, 02:05
SeeMoreDigital: that other thread asks about compatible Xvid settings, this one asks about a suitable resizing method.
*.mp4 guy: I see, gonna try SeeSaw + MultiSWAR first then. Thanks for the advice :).
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