AVISynth filters for VHS Noise Reduction and Sharping

Discussion in 'Amateur Video Production' started by Leonid Makarovsky, Dec 13, 2004.

  1. I have the VHS. The VHS quality is actually really good. What I'd like to do
    is to remove those blue colored noises and then sharpen the image a bit.
    So can anyone who has done, recommend me external filters and settings they
    use? Thanks.

    --Leonid
     
    Leonid Makarovsky, Dec 13, 2004
    #1
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  2. : I have the VHS. The VHS quality is actually really good. What I'd like to do
    : is to remove those blue colored noises and then sharpen the image a bit.
    : So can anyone who has done, recommend me external filters and settings they
    : use? Thanks.

    : --Leonid

    PS. This VHS is PAL if it matters.

    --Leonid
     
    Leonid Makarovsky, Dec 13, 2004
    #2
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  3. "Blue colored noises?"
     
    Neil Nadelman, Dec 15, 2004
    #3
  4. You know the bluish artifacts.

    --Leonid

    : On 13 Dec 2004 17:48:27 GMT, Leonid Makarovsky <>
    : wrote:

    : >I have the VHS. The VHS quality is actually really good. What I'd like to do
    : >is to remove those blue colored noises and then sharpen the image a bit.

    : "Blue colored noises?"

    : -----------------------------------------------------
    : Neil Nadelman (ROT13)
    : -----------------------------------------------------
    : I have no fears in life,
    : for I have already survived Theta-G!
     
    Leonid Makarovsky, Dec 15, 2004
    #4
  5. Actually, I don't. Can you post an image to illustrate them?
     
    Neil Nadelman, Dec 20, 2004
    #5
  6. : On 15 Dec 2004 21:21:55 GMT, Leonid Makarovsky <>
    : wrote:

    : >You know the bluish artifacts.

    I'll try this evening...

    --Leonid
     
    Leonid Makarovsky, Dec 20, 2004
    #6
  7. : Actually, I don't. Can you post an image to illustrate them?

    This image is taken from MPEG-2 file. On computer it looks somewhat ok: dark,
    but on TV screen it looks like a mixture of blue and green colors.

    http://us.geocities.com/leonid_makarovsky/Temp/bluenoise.JPG

    Do you want me to boost the brightness up and repost it if you can't see?

    --Leonid
     
    Leonid Makarovsky, Dec 21, 2004
    #7
  8. Leonid Makarovsky

    Bariloche Guest

    Looks like what you need is a "Chroma Noise reduction" filter. For
    instance, the Cnr2 one at http://ziquash.chez.tiscali.fr, from MarcFD.
     
    Bariloche, Dec 22, 2004
    #8
  9. Thank you.

    --Leonid

    : On 21 Dec 2004 17:37:18 GMT, Leonid Makarovsky <>
    : wrote:

    : >on TV screen it looks like a mixture of blue and green colors.

    : Looks like what you need is a "Chroma Noise reduction" filter. For
    : instance, the Cnr2 one at http://ziquash.chez.tiscali.fr, from MarcFD.
     
    Leonid Makarovsky, Dec 22, 2004
    #9
  10. : >on TV screen it looks like a mixture of blue and green colors.

    : Looks like what you need is a "Chroma Noise reduction" filter. For
    : instance, the Cnr2 one at http://ziquash.chez.tiscali.fr, from MarcFD.

    Bariloche,

    does this filter blur the image? I am not experienced with chroma noise
    reduction filters at all. Is the one you recommend the best out there?

    --Leonid
     
    Leonid Makarovsky, Dec 22, 2004
    #10
  11. I think that one (2.4?) has problems. You need the latest 2.61:

    http://forum.doom9.org/showthread.php?s=&threadid=78905

    Wilbert
     
    Wilbert Dijkhof, Dec 23, 2004
    #11
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