Which filter to use?
 

Hi All,

I've tried a number of filters, but cannot hit on the right combination. The problem is a section of DVD in a darkened room with camera flash's going off... The encoded section comes out wery "grainy" and poor pic quality. Using KVCDx3 template, any ideas on the filter(s) & settings to get round this?

Thanks...

Hi jackl,

Did you look at exactly that same scene on your DVD :?:
Because if it shows even some minor "grainy" noise on your original material, it will be worse when you encode that same section :!:

-kwag

@kwag

The source material looks good on the DVD. TPMG is having probs with the rapid dark/light/dark transitions.

Have you tried the FaeryDust filter? Really does wonders on getting rid of grainyness. Might not help in black areas though.

hi jackl,

I think what Kwag was saying was.. that if you could have a closer
look in something like vdub and magnify a few frames while scanning
through them to see what the quality looks like ie, you may see some
blocks, or grainyness ect.

Ok, if we're talking about a DVD rip, then after you have created your
d2v file, open this same file in the new vdub 1.4.13 (build 14328)
(this opens MPEG-2 files now) and then you can scan through your d2v
clips.

In the movie, The One, I had SOO MANY PROBLEMS encoding the
scenes where they finally fight, and the scene where they fight in the
factory, and The One pushes The One into a pipe, and then
the sparks begin to fly..
Also, the scene where The One walks through the sparks, you see
LOTS of macroblocks in that scene. Magnified, and scanned through both
those scenes revealed macroblocks all over the place - - on the DVD itself.

Would be nice, once scene is known, that one could set the bitrate a little
higher (or lower) and continue on..

-vhelp

I've done some further testing.

Looked at the source VOB in VDub, looked OK to my eyes.

Also tried some variations on the x3 MPEG1 template, raising the MIN bitrate to 1000, 1500 and 2000... no joy.

Tried all templates, inc the standard and MPEG2 ones, only ones that don't give this prob (maybe it is just not as visible [to me]) are the 352x288 res templates. Anything higher and the "grainyness" appears.

Any thoughts? Anyone?

hi jackl,

* Have you even tried rasing the bitrate beyond the max, and tested
the viewing ?? (or at least as high as your DVD player will handle)

* The strobing or camera flashes in Dark scenes.. this is interesting because
I do lots of WWF Wrestling scenes and they have LOTS of these same
Dark, flashy and strobbing scenes through. These would prove hard for
anyone taking the challenge.. ..

* My quesiton to you is, given the above, have you tried your encoding on
some of those scenes (out of curiosity) ??
At least just to see if you have the same issues, or whatever. This will help
to rule out that it's your DVD movie, or else it's a matter of finding the
cause IN your encoding steps.

Again, I do LOTS of WWF Wrestling (via captures) and I do not have ANY
issues w/ Dark, flashy and strobing scenes. In fact, the only time I do, is
when THEY mess up on their encode (via encoding or whatever)

So, baring what I just said above, and what Kwag suggested.. it's
either of TWO things..

A) your DVD movie, or
B) your encoding method(s) and that inlcudes: any filters used, and their settings.

Try another thing..
* After you encode those Dark scenes, re-open the encoded MPEG in the new
vdub 1.4.13 again and see how those dark scenes look. Use the magnifier
by Rt_Clicking the video window in time-line and selecting "2x size"
If you STILL see the issues you indicated, then at least you know it's NOT
your DVD player, NOR your CDR medea's (cheap brands etc) That is, if you CAN
see those issues on your PC monitor, then it's deffinately in the encoding
process OR, the DVD movie itself, but that YOU ARE NOT seeing it w/ enough
detail on your DVD to catch it. Remember, the DVD has lot's of Bitrate, so
you won't see certain details, until you encode them (usually w/ lower
bitrates) ..but your encoder will catch the slightest issue.

Question, what's the DVD movie you are having dificulty with ?? ?? ??
Maybe we might have this same one and can test it out ourselves and get back
to ya on a alternate route ??

Have a great evening..
-vhelp