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View Full Version : Improving Re-Encode Quality of DVD

EpheMeroN
11th January 2008, 08:18
Lately when doing 4:3 Letterboxed > 16:9 Widescreen conversions I've found out (obviously through the help here) that most older movies, especially when upsizing, need grain removal and good rescaling methods (NNEDI).

I bought "Dead Poet's Society" today and it didn't have much grain at all. I was curious if anyone thought other filters of some type could increase the quality during my re-encode?

Images from source DVD:
http://img149.imageshack.us/img149/5985/snapshot20080110230918xw7.th.png (http://img149.imageshack.us/my.php?image=snapshot20080110230918xw7.png) http://img508.imageshack.us/img508/4038/snapshot20080110231124an5.th.png (http://img508.imageshack.us/my.php?image=snapshot20080110231124an5.png) http://img208.imageshack.us/img208/6020/snapshot200801102309181sv5.th.png (http://img208.imageshack.us/my.php?image=snapshot200801102309181sv5.png)

My current script:
MPEG2Source("C:\Users\xxxxxxx\Desktop\dead-poet.d2v")

AssumeTFF()

Crop(0,68,0,-68)

Telecide(guide=1)
Decimate(cycle=5)

NNEDI(Field=0, dh=True)
BlackmanResize(Width(), 464)

AddBorders(0,8,0,8)
Sagekilla
12th January 2008, 03:08
It looks like it could stand to benefit from some very light temporal degraining, or that's what I would do anyway. Honestly, aside from that I don't see much else the video really needs.
EpheMeroN
13th January 2008, 05:48
Temporal grain removal like with GrainOptimizer? I tried to use it with just GrainOptimizer() in the script and it kept telling me no function of that name was found even though GrainOpt.dll was in the plugins path. I did use RemoveGrain(mode=1) since it's just like simple UnDot and I thought mode=2 would be too strong...
Dark Shikari
13th January 2008, 06:03
Temporal grain removal like with GrainOptimizer? I tried to use it with just GrainOptimizer() in the script and it kept telling me no function of that name was found even though GrainOpt.dll was in the plugins path. I did use RemoveGrain(mode=1) since it's just like simple UnDot and I thought mode=2 would be too strong...GrainOptimizer requires an argument (a denoised clip).
Sagekilla
13th January 2008, 18:14
GrainOptimizer doesn't "remove" grain, per se. It's meant for stabilizing grain so it doesn't move around too much. What I mean is a very weak filtering using some temporal denoiser. HQdn3D has both temporal and spatial modes (you can enable them together or use only one) and you could probably use some fairly low settings on that. Plus, it's quick too.

At least that's what I would do.