Need Help Filtering

[NicholasDWolfwood]

Well, here's the problem.

I captured something off a crappy looking analogue MTV2 signal (give me a good looking MTV2 analogue, Comcast!)

However, I capped into MPEG-2 at 5600kbps. This isn't the problem though, the original signal looks shitty.

http://www.yourneighborsmom.com/nick/orig.png

That's a screengrab from the capped MPEG-2 through DGIndex and AVISynth, with this script:

Telecide(order=1,post=2,blend=false,vthresh=30,back=1)
Decimate(cycle=5,mode=3,quality=3)
Crop(0,0,-0,-2)
BicubicResize(720,480)

However, this:

http://www.yourneighborsmom.com/nick/filt.png

is the result of this script.


Telecide(order=1,post=2,blend=false,vthresh=30,back=1)
Decimate(cycle=5,mode=3,quality=3)
Crop(0,0,-0,-2)
BicubicResize(720,480)
RemoveGrain()
RemoveDirt()
cnr2()
msmooth()
temporalcleaner()
colorYUV(gain_u=15)
tweak(sat=1.2)

I don't know what other filters to use, but I need this to look somewhat decent, as it's going back to MPEG-2 for a DVD. Please don't suggest capping it over, as it's not going to be on the good MTV analogue in the next week or so.

[rfmmars]

It appears to be a (RF)frequency beat pattern getting in somewhere in your system. I doubt that its being broadcast to you that way unless you are a cable user.

Something to think about. Analog is always better than digital as long as everyone in the chain does their job corretly, and most of the time they don't. With digital fewer analog people are involed so whatever the last analog process looks like is what is passed down the digital line.

The only exception is a pure digital movie where no analog is involed. However SATELLITE hardy ever matches DVD and digital cable never does.

After all of this there is really no filtering that can be done to correct that video of yours.

See if you can tighten up your receiver with better cables,AC-Mains strips or grounding.

richard
www.photorecall.net

[NicholasDWolfwood]

It's not the cables or anything like that, as none of the other channels come up like this, and it's bad reception all over this area. About 6 miles away where my dad's office is, he has Comcast Digital as oppossed to what this is (this is coming from the antenna cable from the wall, our Comcast Digital uses a digital box) and it looks crappy there, so it has to be the signal or the way it's being broadcasted through the antenna or through analogue systems, whatever you want to call it.

[Mug Funky]

reasonably strong temporal filtering will push that beating down, unless it's a very strange pattern. unfortunately temporal filtering will probably muck up a lot of the detail as well.

so it looks like this even with a digital set-top box? that's very shoddy indeed. (almost as annoying as visible digital artefacts on analog TV...)

[edit]

give peachsmoother a try. it might help, but probably wont on something this strong. it's worked for me with light interference, but it's temporal filtering is a type that is strangely easy to see on playback even if still frames look perfect. so it may not help you.

[denissio]

You can try SmoothHiQ if you don't mind wasting a day or two :) The best filter I've seen but rather slow.

[Malevolent]

Odd cropping? Why not get rid of the black sides?
Something like Crop(6,4,2,2) ?

For cleaning up i'd go with Mug Funky & do some heavy temporal filtering, with a twist.
Something like:

Undot()
TemporalSoften(5,6,12,15,2)
GoldDust()

You could additionally clear the image with tweak, provided it gets decent.