All my captures have bright horizontal areas occuring.
Is there any way to detect and reduce the brightness of just those areas so they match the average of each frame/consecutive frames? Free software only please.
I've tried deflicker but that doesn't seem to do anything, because it's not that flickery, more a stable-ish like halo(depending on how much the camera or objects move around) thing in consecutive frames portions of the video.
[Attachment 83930 - Click to enlarge]
[Attachment 83932 - Click to enlarge]
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Are these bars on the original tape when you view it on your monitor, or do they only appear in the captured video?
Do they roll or move? If they move like hum bars, I was able to devise a way to remove them, as you can see in this before/after, showing how I massively improved an amateur attempt at doing a Kinescope by just pointing a movie camera at a 1950s television set:
1950s Football Amateur Kinescop Restoration Before/After
You can read about how I developed the tools for doing this:
Bad 1950s Kinescope - Hopeless? -
You might have a dud VCR or Easycap. I suggest you connect your VCR up to your TV with the Yellow video cable and see if the banding is still visible. Can you check with a commercial tape?
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*** DIGITIZING VHS / ANALOG VIDEOS SINCE 2001**** GEAR: JVC HR-S7700MS, TOSHIBA V733EF AND MORE
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*** DIGITIZING VHS / ANALOG VIDEOS SINCE 2001**** GEAR: JVC HR-S7700MS, TOSHIBA V733EF AND MORE
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If it is indeed a ground loop, you need to look at every wire and cable connected to any part of your setup. Examples:
Your VCR is also connected to a cable TV box (which are notorious for introducing ground loops)
You have a monitor connected to the TV setup
You have an external capture box plugged into a different outlet.
I can go on, but the point is that you need to follow every connection all the way back to the other end, and then look at everything connected at that other end, and then repeat that process.
Ground loops are a PITA to troubleshoot.
[edit]My main point is that ground loops often do not originate directly from the mains connection.Last edited by johnmeyer; 7th Dec 2024 at 17:40.
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An educational video (even for me)
https://www.youtube.com/watch?v=3swYweisn5g*** DIGITIZING VHS / ANALOG VIDEOS SINCE 2001**** GEAR: JVC HR-S7700MS, TOSHIBA V733EF AND MORE -
After messing around with ground loops, moving all things over even monitor to one outlet and unplugging non essential USB devices. Tried multiple cables, other VHS player....nothing changed.....until I decided to try out composite plug instead of S-Video. Composite didn't have that smearing at all, so it turns out that S-Video on my Capture device is no good.
I noticed the smearing on the onscreen white text on the VHS players when not even playing any tape, doesn't occur on composite input. -
[Attachment 84005 - Click to enlarge]
[Attachment 84006 - Click to enlarge]
One with S-Video input, other Composite. -
The artifact in post #12 looks different than the original post #1 artifact. This one shows ringing. It sure looks like a cable issue, but you said you replaced cables, and I assume that included the S-Video cable.
I'm glad you have it working.
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