The IBK is a gizmo and you can bust it open and poke around inside if
you're curious about how it works.

On Wed, Mar 28, 2012 at 9:57 PM, dave dfx yu <dave...@gmail.com> wrote:

> Hi,
>
> Does anyone know the math or the inner workings process of how IBK ( and
> other keyers) do the screen subtraction for the edges?
>
>
> Regards,
> Dave
>
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-- 
John Mangia

908.616.1796
j...@johnmangia.com
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