RE: [APML] film flat fielding

["Scott Hammonds" <shammonds@creatorsview.com>]

Interesting Wei-Hao, thanks for posting the article. My question is: Doesn't
this method pretty much describe the same techniques used in Jerry's book
when you blur a copy of the image and use the subtract or apply image
command? I haven't look closely at the method's, and also haven't processed
an astro photo in a while, but these methods seem similar at quick glance. 


Scott Hammonds

-----Original Message-----
From: Wei-Hao Wang [mailto:whwang@gmail.com] 
Sent: Monday, July 26, 2004 8:46 AM
To: APML
Subject: [APML] film flat fielding

Aloha,

I put a short article on my website discussing how to do flat fielding on
film images.  Now I'm quite confident that things can be done with only
PhotoShop.

The link is
http://www.ifa.hawaii.edu/~wang/gallery/random_notes/film_flatfield/index.ht
m

Cheers,

Wei-Hao


--
________________________________________________________________
Wei-Hao Wang  :)

Institute for Astronomy at University of Hawaii

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2680 Woodlawn Drive         Personal Website:
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