Re: [APML] Redo- Sagittarius - M8 to M17

["Juan Conejero" <pleiades2004@pleiades-astrophoto.com>]

Hi Alan,

> Still, every PI image I've seen for months has looked very strange. The
> colors are WAY off, with purples, greens and oranges dominating, and
> everything else has looked fuzzy, or soft. Is this because of user
> inexperience?

I have to disagree with that. Of course, user inexperience can lead to
incorrect images processed with PixInsight. However, the same is true of
other software tools. You'll find thousands of images poorly processed in
Photoshop.

Let me put a few examples of images that have been entirely processed with
PixInsight:

Wide field Orion by Carlos Milovic, on Provia 400F:
http://astrosurf.com/cmilovic/astro/granc/orion50/33.jpg

Another deep Orion, also by Carlos Milovic:
http://astrosurf.com/cmilovic/astro/granc/orionsd/33.jpg

The Pipe Nebula by Vicent Peris, modified Canon 300D:
http://pteam.pleiades-astrophoto.com/Vicent/pipa/pipa900.jpg

The Milky Way by Carlos Sonnenstein:
http://www.astrosurf.com/astro35mm/galeria/vl/vl.htm

M101 DSS image, processed by Vicent Peris:
http://pleiades-astrophoto.com/pixinsight/DSS_Gallery/M101_vperis_1200.html

This is a Jupiter image by Anthony Wesley, entirely processed with
PixInsight LE's wavelets and color separation tools. See the final version
at the bottom-left corner of this screenshot:
http://pixinsight.com/examples/jupiter-awesley/screen_A.jpg

Here you have a couple recent CCD images by Jack Harvey from the Star
Shadows Remote Observatory. I especially like these two images. PI's
histograms, curves and wavelets have been used to produce them:

A portion of the Veil Nebula:
http://www.starshadows.com/NGC6992RGJT.html

The Crescent Nebula:
http://www.starshadows.com/NGC6888RGJHJT.html

This is a recent Mars image by Stef Cancelli of the RASC, where PI's
wavelets, SGBNR and histograms have been used:
http://www.astrogarage.com/Portals/10/Repository/24/Mars-Sept-18-Dreamy.b52f8297-596f-40ae-831f-085b33235292.jpg

Eddie Trimarchi recently won the 2005 CWAS David Malin Awards with his
excellent Tarantula Nebula image. You can see it now on Eddie's website:
http://astroshed.com/
If you click on Picture Info at the top row, you'll see that PI has been
used, along with other programs, to produce this fine image.

I could put a lot more examples of excellent film, DSLR and CCD images; the
above ones are just a few, especially demonstrative ones, I think. Do you
think these images are way off, or fuzzy?

 It is true that most leading astrophotographers use Adobe Photoshop.
However, it is also true, IMHO, that many experienced and leading
astrophotographers show a lot of resistance to changes. We are trying to put
the best of our creativity and knowledge, as well as lots of efforts, to
bring out a powerful, rigorously implemented and versatile image processing
environment. This is an effort originated form the inside of
astrophotography, and honestly I think we are achieving at least some of our
goals quite well.

Regards,
Juan
______________________________________________________________________
Juan Conejero, Pleiades Astrophoto Team
PixInsight Home Page: http://pleiades-astrophoto.com/pixinsight/


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