Re: [APML] Basic processing

["Steve..." <swalters@att.net>]

Bobby and others,

Hmmm, I have always stacked my images before doing anything else to them
such as vignetting removal, curves or anything. My rationale was that
stacking was best done first so you'd be processing an image with the signal
to noise ratio. Besides, it's twice or thrice as much work if you do each
frame separately and then stack 'em.

Am I missing something?

Steve...

----- Original Message -----
From: "Alan Voetsch" <critter12952@yahoo.com>
To: <astro-photo@seds.org>
Sent: Sunday, April 14, 2002 5:35 PM
Subject: RE: [APML] Basic processing


> > I've found Picture Window
> > Pro (http://www.dl-c.com/) to be the easiest to use.
> > Then do all the other
> > processing in Photoshop. Hope this helps. Good luck!
>
> Dan and Bobby,
>
> Thanks for the dl&c link, it's printing out now.
>
> > 1. vignetting removal / flat fielding
> > 2. levels adjustment. Don't clip off the shadows!!!
> > 3. stacking
> > 4. curves
> > you only asked for three but you'll need these 4
> > minimum to get the best out
> > of your astrophotos.  Then you could play with
> > hue/saturation and then look
> > at some mild unsharp masks and some type of grain
> > reduction. (the list can
> > go farther <g>)
>
> That's the impression I've gotten. I read a little on
> USM and it seems like something to wait for awhile
> on... blew my mind. :-)
>
> Thanks,
> Alan
>
> __________________________________________________
> Do You Yahoo!?
> Yahoo! Tax Center - online filing with TurboTax
> http://taxes.yahoo.com/
>
> --  APML Archives at <http://astro.umsystem.edu/apml/>  ---
>              Unsubscribe at <majordomo@seds.org>


--  APML Archives at <http://astro.umsystem.edu/apml/>  ---
             Unsubscribe at <majordomo@seds.org>