Chroma Artifact from Sat.

[boombastic]

Everytime i record something from the Satellite i have this kind of noise:

http://img444.imageshack.us/img444/993/satrecordinght3.jpg

this is taken from the credits but it's visible along the entire movie:



http://img444.imageshack.us/img444/8464/sat2ym7.jpg

how can i correct this?
My script now is:

mpeg2source("D:\Weather1\VIDEO_TS\The Weather Man.d2v",idct=0)
Crop(8, 80, -24, -80)
ColorMatrix()
TomsMoComp(1,5,1)
RemoveGrain(mode=2)

[foxyshadis]

It's known as "rainbowing", and fft3dfilter(plane=3) with high sigma values is one of the most effective ways of dealing with it. If you search on the term, you'll find others, as well.

[Video Dude]

If the credits are just white text on black, an effective method to clean it up would be to use ApplyRange or Trim with Greyscale().

Then use a derainbow filter on the rest of the movie.

[ChiDragon]

Since no one has touched on the capture end, you should be using S-Video connections if possible to remove/reduce these artifacts. Of course if they're present in the satellite source that won't help...

[boombastic]

At the moment the connection is a simple Scart connection because the sat decoder doesn't have any other connection to output to the dvd recorder.

I 'm running Vista,i tried fft3dfilter but with plane values higher than 2 i get the error "FFTW3 plan error";
i tried also BiFrost(interlaced=false) and the function DeRainbow but none of them was of help neither with the credits neither with the movie....:confused:

[Boulder]

If you have a decent graphics card, you might want to try FFT3DGPU instead of FFT3DFilter.

[boombastic]

If you have a decent graphics card, you might want to try FFT3DGPU instead of FFT3DFilter.

Not so decent sadly...it's a GeForce 7300GS 128MB TurboCache

[Video Dude]

BiFrost is most effective if you use SSIQ in combination with it. It is slow, but will work on most sources.


Bifrost(scenelumathresh=2,altclip=SSIQ(11,300,false),interlaced=false)

[boombastic]

This is my script now:


mpeg2source("D:\Weather1\VIDEO_TS\The Weather Man.d2v",idct=0)
Crop(8, 80, -24, -80)
ColorMatrix()
TomsMoComp(1,5,1)
#RemoveGrain(mode=2)
Bifrost(scenelumathresh=1,altclip=SSIQ(11,300,false),interlaced=false)

this is the result:

http://img523.imageshack.us/img523/3179/bifrostbk1.jpg

[Boulder]

What fftw3.dll version did you use when it bombed?