Re: [APML] NGC 3953 using LLRGB technique

["John Boudreau" <jeboud@attbi.com>]

Bravo Rob!

Wonderful image.... and post!

John Boudreau
jeboud@attbi.com
http://home.attbi.com/~jeboud/astro.htm

----- Original Message -----
From: "Robert Gendler" <robgendler@worldnet.att.net>
To: <astro-photo@seds.org>
Sent: Saturday, April 20, 2002 9:28 AM
Subject: [APML] NGC 3953 using LLRGB technique


> Hi all,
> OK I'll try to do this a lttle differently <G>.
> I've uploaded a new image of NGC 3953, a nice
> spiral in Ursa Major. The image is at:
> http://www.robgendlerastropics.com/3953.html
> I used the "LLRGB" technique to bring up the rather
> weak color data. The processing steps are outlined below.
> 1)Calibration, stacking, and RGB composite in Maxim.
> 2) LR applied to Luminance in AIP.
> 3)RGB and Luminance saved as 16 bit and brought up
> in PS where curves, levels applied and converted to 8bit.
> 4)First LRGB created using layers in PS. Opacity brought
> to 50% and image flattened. Additional saturation (30%)
> and gaussian blur (1.7 pixels) applied. This image was then used as the
> "new" RGB and two more additional rounds of the same were performed
> which very significantly enhanced the color data. If anyone is interested
in
> the details of the technique my LLRGB article can be found at
> http://www.robgendlerastropics.com/LLRGB.html
> Rob Gendler
> Email: robgendler@att.net
> Web site: http://www.robgendlerastropics.com/
>
>
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