Re: [APML] Gradient and Vignette removal software

[Philip Perkins <philip@astrocruise.com>]

Chris,

Jerry's method is very good indeed.  I have used it for years and use it 
for all images.  I believe it's on his web site.  It's become so intuitive 
that I haven't looked at the instructions for years.  I have adapted it a 
little over time.

Matt has a very interesting method which which I keep meaning to dig into 
more deeply - I believe it could be powerful for removing colour as well as 
density gradients.

--Philip


At 21:56 26/06/02 -0700, you wrote:
>Im looking for a simple to use piece of software that removes gradients 
>and vignetting from my schmidt camera images with film.  Ive tried Maxim 
>DL, and I get horrible results, and wondered if there is something I can 
>say put a grid on and it does what it has to do to flatten the brightness 
>of the grid.  Maybe Im overlooking some thing obvious, but doing this in 
>photoshop is a gamble at best.
>
>
>Chris Schur
>
>Astrophotography: 
><http://www.psiaz.com/schur/astro/index.html>http://www.psiaz.com/schur/astro/index.html
>

Philip Perkins - philip@astrocruise.com
Wiltshire UK & Luberon France
Astrocruise - http://www.astrocruise.com


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