Necessary Things for upscaling

[Stratus]

I have a original DVD9 of one movie...i want to make it upscaled for the best view on my home theater...Can anybody tell me how to approach upscaling....What are the basic filters that should be used in avisynth script??

[hanfrunz]

Hello Stratus,

be more precise please:
-upscale to which resolution?
-upscale live while playing or render a new file?
-interlaced or progressive?
-have you studied the resizers part in the manual?

regards.
hanfrunz

[Nightshiver]

Easy Way: Buy the Blu-Ray version :P

[Ranguvar]

1.) Basic method - do a Bilinear, Bicubic, Lanczos4, Spline, or Blackman resize to the target resolution. Using a high quality degrainer like TemporalDegrain might help to avoid upscaling the noise as well.
2.) Slow method (most likely will only work for encoding) - use NNEDI (http://forum.doom9.org/showthread.php?t=129953) to double the resolution, and then use one of the above to fine tune it. Again, degraining first may help. A simple function to double resolution is one of the first things in that thread.

Note though that you'll need almost as much bitrate as a true HD source if you're encoding... it's not really worth it.

[Blue_MiSfit]

If you're going all out with temporaldegrain+NNEDI, why not do some gentle sharpening? I would also probably add some HD grain - maybe even a tiny bit on the encode phase. On display, I would definitely add a fair amount.