Re: [APML] NGC6820 - a CCD attempt to emulate Film

["Bobby Middleton" <bobm@koyote.com>]

Mike that's pretty good all right. Not Many Ha images that have those star
colors and it does have a film-like look. I would go even further with the
curves.............I played with it some and boosted the mid-levels of the
RGB plus the B and G very slightly. I also very lightly puled down the
shadow curve on RGB. See what you think; it boosts contrast but of course we
all have our subjective preferences.
Bobby Middleton

"God doesn't play dice".........
Albert Einstein on blind chance
http://www.koyote.com/users/bobm/astro1.htm

----- Original Message -----
From: Mike Cook, AF9Y <mwcook@concentric.net>
To: <astro-photo@seds.org>
Sent: Sunday, October 14, 2001 12:55 AM
Subject: [APML] NGC6820 - a CCD attempt to emulate Film


> I would appreciate feedback on an attempt to make an
> ST-10 CCD image look like a tri-color film image:
>
> http://www.webcom.com/af9y/ngc6820hrgbc.htm
>
> I've often wondered why CCD images looked so
> different than film.  After working with the ST-10
> CCD for the last 6 months, I can appreciate how
> much effort goes into processing.  Color imaging
> is hard enough and combining it with Ha makes
> it much worse.  I'm certainly glad that I had four
> years of film image processing as a foundation.
>
> If anyone has a film image of NGC 6820 for comparison,
> I would be most in seeing it.
>
>
>
> Mike Cook, AF9Y
> http://www.webcom.com/af9y
> mwcook@cris.com
>
>
>
>
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