Hi Andi. I use the selective colour correction, often with the HSL
keyer instead of the chroma keyer but I was looking for a way to affect
a whole hue with a totally smooth fall off to whatever point in the hue
wheel I like. The chroma keyer and the HSL keyer seem a bit too "on or
off" for what I'm trying to do. They can generate artefacts if you're
not careful. And you often have to blur the matte to get rid of
jaggies.
-----Original Message-----
From: owner-ds(at)Softimage.COM [mailto:owner-ds(at)Softimage.COM] On Behalf
Of Andi Loor
Sent: 03 September 2005 20:12
To: DS(at)Softimage.COM
Subject: Re: hue matte
Selective colour correction?
Andi
John McMullin wrote:
> Hi everyone. Is there any way to make a matte based on a clip's hue
> with variable softness as the hue changes into a different colour?
> For instance, I might want to select cyan as pure white in the matte
> and have all the a full range of greys up until I hit green and blue
> either side of cyan in the hue wheel. The HSL keyer seems to
> key largely "on or off" despite it's softness control.
>
> I can't seem to work out how to do it using colour channels and
> different composite modes. I can make a matte based on strength of R,
> G or B but not purely on hue, irrespective of intensity.
>
> Thanks for any ideas,
>
> John
>
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>
--
Andi Loor
www.andiloor.se
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Disclaimer -
3/9/2005 This email and any files transmitted with it are confidential and intended solely for
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disseminate, distribute, copy or alter this email. Any views or opinions presented in this
email are solely those of the author and might not represent those of VET.
Warning: Although VET has taken reasonable precautions to ensure no viruses are present
in this email, the company cannot accept responsibility for any loss or damage arising from
the use of this email or attachments.
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