Re: [APML] Redo- Sagittarius

Hi Alan,

Thanks! As for processing steps, after my initial Histogram balance, I did a Curves, Wavelets, SCNR, and SGBNR. After each step I check the image in Histograms to make sure I'm not clipping anything. After I'm finished in PI LE I put the image in PS for a Auto Levels with a Fade adjustment, an Unsharp Mask with Fade adjustment, and a Minimum filter with Fade adjustment. I think the "softness" comes mainly from SGBNR. I do not possess a great knowledge of the Wavelets or SGBNR, I just use the tutorials as a guide and really don't deviate too much from the values used in them. When I get time I'll try a version in PS alone to see what the difference is.

Gary

----- Original Message -----

From: Alan Voetsch

To: Discussion of Film Astrophotography

Sent: Friday, September 23, 2005 2:02 PM

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

Hey Gary,

This is an improvement. I'd like to ask what processing steps you did
in Pixinsight. Did you do more than a DBE? I have to ask because this
shot has taken on the 'softness' that I always see with images that are
extensively processed in Pixinsight. To this point I have not heard a
reasonable explanation of why this is, but it is.

I can now tell as soon as an image pops up where it was processed. I
wonder if you'd be willing to do a version in PS only as a comparison.

Thanks,
Alan