I have a VCR tape that was filmed in 1988 using a HITACHI VK-C770 camera attached to Hitachi VT-7000E and Timer VT-TU70E(purchased in 1981) I had to use a external light source as the camera did not capture light well and it had to be hooked up to a TV to see what you were recording. The actual VHS footage is only 1 hour long and captured using PAN NVHS960B>>Svideo>>CAMCORDER>>iee1394>>PC>>WinDV
I have viewed the Raw DV on my Captured PC and its looks dark and there are chequered patterns in the bright areas, Ive posted 2 clips so that you can see what i mean
Ive installed AviSynth and Vdub, but no plugins as i dont know which ones i will need
I'm sure the 2 clips have other problems that im not aware off
Odd. The first clip was played with a quality Panasonic S-VHS VCR with TBC, using s-video ... yet had dot crawl. I can only remove some of it. And I'm not sure it actually dot crawl, because standard dot crawl noise removal methods have no effect. I tried several. Standard noise reduction (NR) methods were used in my sample clip.
I somewhat wonder if the DV converter caused the "dot crawl" error!
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And green chroma noise.
And chroma dropouts.
And just general analog grain noise.
- Checkmate (the dot crawl filter) had minimal effect, but a small improvement was there, so I left it.
- Deen knocked out some small edge noise.
- The two DePulse filters each attack different dropouts -- one black, one white.
- The chroma was offset. It's back where it belong now.
The degrain filter helped with general noise and some more dot crawl. The side effect is softening -- remove more noise, remove more detail. So it's about as best as can be done. You can, of course, try more tweaks.
VirtualDub is used for the masking, chroma noise removal, and more mild NR.
It too hard to tell from a small clip if the NR is set too high (default), or should be removed entirely. Keep that in mind. Use judgment and see how it looks. You never wanted to overfilter!
The second clip had chroma noise and mild grain. That could be entirely done in VirtualDub.
I don't usually go into this much detail for Free Members, but like I to show off my dropout removal method.
You can play with HSV in Virtualdub or Gradian Curves in RGB. The funny thing with camcorders is that many try to adjust to light levels on their own, which can create video that requires different amounts of brightness correction, so take it piece by piece.
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zack82 (02-28-2014)
Video often appears lighter on TV. So if you make it look perfect on a non-calibrated professional monitor, it'll come out looking terrible when viewed on TV. Beware! This is a very common newbie mistake.
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zack82 (02-28-2014)
For those who use a tv as a monitor, this shouldnt be an issue. Computer screena also offer better color, so what you see may not be what you get in that sense either
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zack82 (02-28-2014)
Many thanks to premiumcapture,lordsmurf and themaster1 for your efforts in trying to help me
I seem to be having some difficulties in trying to get your scripts (.vcf and .avs) to work
Im sure i have the necessary plugins installed but i keep getting errors
Attachement Picture 1 shows what plugins i have for Vdub
Attachement Picture 2 shows what plugins i have for AviSynth 2.5
Attachement Picture 3 shows what error i get when clicking on lordsmrufs .avs file
Attachement Picture 4 shows what error i get when clicking on lordsmrufs .vcf file
Attachement Picture 5 shows what error i get when clicking on themaster1 .avs file
The jpegs are too big and I think the compression is making the text blurred out, try cropping out all the unnecessary space.
Open the two files with notepad (yes, notepad) and triple-check to see that you have all the filters on your computer. Once you are absolutely sure you have them, most likely its an issue of file location, but I am not good with avisynth so others might have better input.
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zack82 (03-19-2014)