Should I use Convolution3D in dvd to dvdr?

[simps]

Hi there!

I am doing some dvd to dvdr, and looking for the highest possible quality.
The source (dvd) is 8.5/10 in quality.

I really cant see that many noise on the source, so i am not sure if i should use convolution3D on it. (Since it is a de-noiser thingy right?)

I am thinking that the minimal compression that C3D would get me (using movie HQ settings), would give the mpeg2 encoder the power to encode the frames a little better.



So i have 2 questions for the experts on this:


1) Should i use convolution3D on dvd to dvdr?? Or it will only make things worst?

2) Is convolution3d better then undot().deen() ???


Tkz
[]´
Simps

[redwudz]

Generally you only use a filter when you really have to. Filtering doesn't improve the quality, it takes something away. A exception might be color correction.

If it were a old noisy VHS tape, you might make it look better. Fuzzier, but better. I don't see where you would get an improvement with a DVD video.

Yes, it might compress a little better, but adjusting your encoding (or transcoding apparently here) for better quality would probably be a better use of time.

Alternatively, you could encode a short segment or a short VOB and see if there is any improvement before you spend the time on filtering the whole video.

[offline]

undot().deen(), convolution3d , peachsmoother
and other filters will of coursedegrade high quality DVD sources. If your source is marginal then the
lightest smoother might be superior than using
a heavy de-noisier on light settings.

Unfortunately the only way to be sure is to
test for yourself. After a while you will develop
"an eye" to what filter is needed or not.

You could try:
http://neuron2.net/msmooth/msmooth.html

[simps]

Tkz guys!

I will do some test myself, and post the results too.

What i would like to see, is some example of this:

1) a frame that is consider to be "noisy".
2) a frame that is consider to be "very low noisy".
3) a frame without noise problems.

Because i really dont know what that is.
A very noisy frame, is actually easy to see, but what about thouse with very little noise, that you have to put in 300% zoom to see?

Shoud i consider to use de-noisers only on film that has frames that i can see some noise on 100% zoom (regular size)?

Tkz!
[]´
Simps

[simps]

For the record:

I did encode the dvd to dvdr with convolution3d, and the result was VERY BAD.

So if you are reading this, and you are even thinking of doing the same i did, you better think again.
C3d even with the movieHQ config, or even on lower numbers, will destroy "black parts, or "color similar" parts" of the movie.
Result is really very bad compared to the original.

So just use it if you have heavy noise on the source. This is not for DVD sources material at all.

And if you have small noises (or ammount of noise) i dont even think this is the appropriete filter, since there are way better "light smoothers" out there.

I would say, c3d is good for heavy noise, like bad vhs or so.

Well, living and learning right?
And of course, sharing the expirience with others, to help.

Tkz!
[]'
Simps