VideoHelp Forum




+ Reply to Thread
Results 1 to 9 of 9
  1. Member rijir2001's Avatar
    Join Date
    Jul 2002
    Location
    United States
    Search Comp PM
    It shows mostly on lips and hair. What is the cause and can it be corrected via a filter? This was captured from a Panasonic PV-S4566 to a Pyro AV Link.

    Quote Quote  
  2. Always Watching guns1inger's Avatar
    Join Date
    Apr 2004
    Location
    Miskatonic U
    Search Comp PM
    Hard to tell how bad it is from a still - can you give us a few seconds ?

    Personally, I'd just go and buy the DVD.
    Read my blog here.
    Quote Quote  
  3. Video Restorer lordsmurf's Avatar
    Join Date
    Jun 2003
    Location
    dFAQ.us/lordsmurf
    Search Comp PM
    Chroma noise.
    Want my help? Ask here! (not via PM!)
    FAQs: Best Blank DiscsBest TBCsBest VCRs for captureRestore VHS
    Quote Quote  
  4. Member rijir2001's Avatar
    Join Date
    Jul 2002
    Location
    United States
    Search Comp PM
    Originally Posted by lordsmurf
    Chroma noise.
    I tried a chroma filter in VirtualDub but as a lowered the red values it just seemed to remain. Maybe I just don't understand the filter settings that well. This part is new to me.
    Quote Quote  
  5. Member rijir2001's Avatar
    Join Date
    Jul 2002
    Location
    United States
    Search Comp PM
    Originally Posted by guns1inger
    Hard to tell how bad it is from a still - can you give us a few seconds ?

    Personally, I'd just go and buy the DVD.
    I actually have this DVD. I'm just wondering how to deal with this output effect from this VCR.
    Quote Quote  
  6. Member edDV's Avatar
    Join Date
    Mar 2004
    Location
    Northern California, USA
    Search Comp PM
    Looks like Y/C delay issues. Chroma is delayed right vs. luminance.

    Note the green spill into the pink sweater on the left and the fresh tone spill into the collar on the right.

    Even if you get the chroma centered on luminance, VHS has very little chroma bandwidth (~500KHz) vs. DVD (~1.75MHz) so the color will be more smeared for VHS.

    [/list]
    Quote Quote  
  7. Try the VHS filter in VirtualDub. It allow adjustment of the chroma phase, and has spacial and temporal filters to reduce the noise.
    Quote Quote  
  8. Member edDV's Avatar
    Join Date
    Mar 2004
    Location
    Northern California, USA
    Search Comp PM
    To fix this you need to be in YCbCr color space so that CbCr can be shifted left vs Y.
    Quote Quote  
  9. Originally Posted by edDV
    To fix this you need to be in YCbCr color space so that CbCr can be shifted left vs Y.
    That's what the VHS filter does. Obviously, working in a program that can handle all filtering in YUV is preferable (AVISynth for example) but the OP mentioned VirtualDub.
    Quote Quote  



Similar Threads

Visit our sponsor! Try DVDFab and backup Blu-rays!