PlazzTT
28th December 2005, 05:35
I'm doing capture from a digital satellite box via S-Video cable.
When I look at the captured video (I used HuffYUV) on my PC's LCD monitor, I notice interference. (I had to raise my head to see it properly on my LCD screen, you might have to do the same).
You can see it in the black bars at the top and bottom of the screen.
http://x12.putfile.com/12/36022232866-thumb.png (http://putfile.com/pic.php?pic=12/36022232866.png&s=x12)
This interference looks like electrical interference caused by poor shielding in the S-Video cable? That's all I can think of, because the S-Video out of my digital box definately isn't outputting this noise.
Or maybe one of the appliances is not properly grounded (earthed) (my digital decoder, PC and TV are all connected to each other)
I've noticed that when recording audio, there is a slight buzz on the recordings, and this interference is probably the same thing.
Is there some filter that can capture a noise profile from the black bars, and use this to denoise the rest of the frame?
I've tried Deen, Convolution3D, and MipSmooth, but they all have very little effect on this kind of noise. I'm looking for a filter that can make those black bars almost perfectly black. I don't think a smoothing filter will be able to do this.
Any suggestions?
When I look at the captured video (I used HuffYUV) on my PC's LCD monitor, I notice interference. (I had to raise my head to see it properly on my LCD screen, you might have to do the same).
You can see it in the black bars at the top and bottom of the screen.
http://x12.putfile.com/12/36022232866-thumb.png (http://putfile.com/pic.php?pic=12/36022232866.png&s=x12)
This interference looks like electrical interference caused by poor shielding in the S-Video cable? That's all I can think of, because the S-Video out of my digital box definately isn't outputting this noise.
Or maybe one of the appliances is not properly grounded (earthed) (my digital decoder, PC and TV are all connected to each other)
I've noticed that when recording audio, there is a slight buzz on the recordings, and this interference is probably the same thing.
Is there some filter that can capture a noise profile from the black bars, and use this to denoise the rest of the frame?
I've tried Deen, Convolution3D, and MipSmooth, but they all have very little effect on this kind of noise. I'm looking for a filter that can make those black bars almost perfectly black. I don't think a smoothing filter will be able to do this.
Any suggestions?