AVISynth filters for VHS Noise Reduction and Sharping

[Guest]

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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

 

[Guest]

Archived from groups: rec.video.desktop (More info?)

Leonid Makarovsky <venom@cs.bu.edu> 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.
: 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

 

[Guest]

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On 13 Dec 2004 17:48:27 GMT, Leonid Makarovsky <venom@cs.bu.edu>
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 arvy@navzr-genafyngbe.pbz (ROT13)
-----------------------------------------------------
I have no fears in life,
for I have already survived Theta-G!

 

[Guest]

Archived from groups: rec.video.desktop (More info?)

You know the bluish artifacts.

--Leonid

Neil Nadelman <arvy@navzr-genafyngbe.pbz (rot13)> wrote:
: On 13 Dec 2004 17:48:27 GMT, Leonid Makarovsky <venom@cs.bu.edu>
: 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 arvy@navzr-genafyngbe.pbz (ROT13)
: -----------------------------------------------------
: I have no fears in life,
: for I have already survived Theta-G!

 

[Guest]

Archived from groups: rec.video.desktop (More info?)

On 15 Dec 2004 21:21:55 GMT, Leonid Makarovsky <venom@csa2.bu.edu>
wrote:

>You know the bluish artifacts.

Actually, I don't. Can you post an image to illustrate them?
-----------------------------------------------------
Neil Nadelman arvy@navzr-genafyngbe.pbz (ROT13)
-----------------------------------------------------
I have no fears in life,
for I have already survived Theta-G!

 

[Guest]

Archived from groups: rec.video.desktop (More info?)

Neil Nadelman <arvy@navzr-genafyngbe.pbz (rot13)> wrote:
: On 15 Dec 2004 21:21:55 GMT, Leonid Makarovsky <venom@csa2.bu.edu>
: wrote:

: >You know the bluish artifacts.

I'll try this evening...

--Leonid

 

[Guest]

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Neil Nadelman <arvy@navzr-genafyngbe.pbz (rot13)> wrote:
: 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

 

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On 21 Dec 2004 17:37:18 GMT, Leonid Makarovsky <venom@csa3.bu.edu>
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.

 

[Guest]

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Thank you.

--Leonid

Bariloche <bariloche@bariloche.com> wrote:
: On 21 Dec 2004 17:37:18 GMT, Leonid Makarovsky <venom@csa3.bu.edu>
: 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.

 

[Guest]

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Bariloche <bariloche@bariloche.com> 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.

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

 

[Guest]

Archived from groups: rec.video.desktop (More info?)

Leonid Makarovsky wrote:
>
> Bariloche <bariloche@bariloche.com> 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.
>
> 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?

I think that one (2.4?) has problems. You need the latest 2.61:

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

Wilbert