Re: [APML] Astronomical Image Enhancement Trial

["Chris Cook" <ccjd@ix.netcom.com>]

Hi Dave -

To me, it almost looks like a very mild USM was applied.  All of original
nebulosity seems to be there but the image looks like the contrast has been
boosted.  I also notice some slight dark artifacts around stars with the
Lagoon Nebula.  Maybe this was because you applied it to an existing web res
JPG image, as you mentioned?

Interesting stuff!  I look forward to seeing more.

Chris

----------------------------------
Chris Cook
Astronomical & Nightscape Photography
www.abmedia.com/astro


-----Original Message-----
From: Aplanatic@aol.com <Aplanatic@aol.com>
To: astro-photo@seds.org <astro-photo@seds.org>
Date: Wednesday, June 04, 2003 5:35 PM
Subject: [APML] Astronomical Image Enhancement Trial


>Howdy,
>
>For several months I've been developing algorithms specifically for
>astronomical image enhancement and I'd like to get your opinion on some
early results.
>
>Using Richard's recent M8/M20 image, I have applied my noise reduction,
>sharpening and optimum contrast algorithms on the image.  Please see:
>
>http://members.aol.com/aplanatic/slevogt/M-8_processed.jpg
>
>The very nice original image can be compared here:
>
>http://azastrophotography.com/M-8.htm
>
>Please take a critical look at the processed image and let me know what you
>think about the techniques employed.  They are quite different from the
usual
>methods.
>
>I started with the jpeg image from Richard's web site.  Results are
>significantly better when starting from a raw, unprocessed scan.
>
>Thanks for taking a look,
>Dave Rowe
>_______________________________________________
>Astro-Photo mailing list
>Astro-Photo@seds.org
>http://seds.org/mailman/listinfo/astro-photo
>

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