blurry image(s) during movement/motion

[WhiteKnight2K]

Wow is this ever a hard problem to find a solution for. The problem is this, I have a divx movie which is a nice picture for still shots, but for any motion such as the person's face moving up/down or side/side the camera seems to blur the moving object like the object going out of focus...is this any way to fix this because its very nauseating to watch a movie like this? Thanks for any help!

btw, i've tried using decomb to deinterlace with avisynth and the final product did not seem to be any different than the original. maybe i am not using decomb right but everything seems to show that it is working.

[hartford]

What is the frame rate? (fps)?

You're certain that this Divx is interlaced?

[jggimi]

This doesn't appear to have anything to do with analog capture. It may not have anything to do with DivX, either, but I've still moved this to the DivX forum.

[WhiteKnight2K]

ok well first of all, sorry for posting in the wrong forum...i wasnt too sure where to stick the question. ANyway, the DivX is Pal format so the fps is 25. Also, how can i tell for sure if its interlaced...If you want, i can send a small sample of it to show you the problem that is occurring?

[WhiteKnight2K]

anyone?? :(

[jggimi]

Could you attach an unresized image here? That might help us understand what it is you are seeing.

[WhiteKnight2K]

well, i could, but i dont really know how to capture a still image...i can however send you a very short clip which shows the problem clearly.

[jggimi]

Most players have still image capture, and Vdub/VdubMod can also extract images. If you'd like to send a clip, that would work, too. See my PM for an e-mail address.

[jggimi]

WhiteKnight2K sent me a 7mb clip, which I've uploaded to this link (http://jggimi.doesntexist.org/bad.avi) where it will remain until Friday.

The sample is 640x352 PAL. I ran it through SeparateFields() and the blurriness is in individual fields.

It is my belief that this is a perfect example of a poor NTSC->PAL conversion. Section 7 (http://www.doom9.org/ivtc-tut.htm#PALTheGoodTheBadAndTheUgly) of our IVTC tutorial describes thee types of PAL discs: The Good, the Bad, and the Ugly, and this looks like an Ugly to me:Usually they are created by blending two nearby frames into one new, in a manner that removes 1 frame in 6 (30->25fps). These look really bad and they are a PITA to work with. My solution is usually to let Telecide(guide=2,post=true, blend=false) remain in the script. This will actually remove some of the worst ghosting. Then I add some form of SPATIAL smoothing. Temporal will only add to the ghosting and should be avoided at all costs with this kind of rip. If you think it looks too blurry, then try some sharpening, but be aware that this might enhance the edges of the ghost images, while at the same time remove the rest of the ghost, and you might not like the result.[EDIT: I may be wrong, of course, since I'm not looking at the unresized source.]

[Sharktooth]

That's not a good conversion for sure... the word "ugly" is not enaugh to describe how horrible it is...

[IgorC]

Originally posted by Sharktooth
That's not a good conversion for sure... the word "ugly" is not enaugh to describe how horrible it is...


printf ("It´s");
for (i=0,i<100000,i++) { printf ("very very very")};
printf ("UGLY");

:p

[WhiteKnight2K]

so is the consensus then that there is no way to fix this particular avi look good??

[manono]

So all you have is the AVI? Not the source vobs? Then the answer is no, nothing can be done.

It likely could have been easily fixed at the encoding stage, but the encoder obviously didn't know what he was doing. Trash that POS.

It's not interlaced, and has already been deinterlaced (big mistake). That's why you trying to deinterlace it did nothing.

[WhiteKnight2K]

ok thanks very much....pretty much my first divX i ever got so its nice to know that not all divX look like this cause i thought it looked like [Edited per Rule 4] too =oP

[jggimi]

I've taken the liberty of editing your post; please try to avoid profanity in the future.

Its not clear from what you've posted, but ... in addition to Rule 4, you may want to review Rule 6 too. Here's a link (http://forum.doom9.org/forum-rules.htm). We're scrupulous in our protection of intellectual propery rights on this forum.

This next link describes our interpretation of Fair Use (www.doom9.org/disclaimer.htm), which may help.