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From: thornton@ssc-vax.UUCP
Newsgroups: comp.sys.amiga
Subject: GENLOCK Keying
Message-ID: <886@ssc-bee.ssc-vax.UUCP>
Date: Mon, 17-Aug-87 15:56:55 EDT
Article-I.D.: ssc-bee.886
Posted: Mon Aug 17 15:56:55 1987
Date-Received: Wed, 19-Aug-87 07:38:30 EDT
Organization: Boeing/UW Seattle
Lines: 32

Hello Amigans.

I'm thinking about taking the plunge, but have a question about
GENLOCK Keying. This is one feature that I don't fully understand
about this machine and want to figure out before I buy.

I want to overlay real images onto computer generated ones. I believe
the GENLOCK drops picture areas on the basis of color. This is a
bit primitive for me. I want to drop portions of the video signal
instead (i.e. shoot a picture of a person and drop everything except
the person, then place that person in my computer generated scene).

I may just have to digitize the real image and extract the features
I'm interested in, enter a "video editer", and place those features
in my artificial scene. I may also want to construct a 3D model of
my extracted feature (i.e. person), so that I can play with it.

Does anyone know of any software to do this? Does anyone know of
any other more-advanced GENLOCK units that can drop spatial areas
of a picture rather than areas based on color?

Ken





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