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Old 04-11-2012, 11:39 PM
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strongmanmike (Michael)
Highest Observatory in Oz

strongmanmike is offline
 
Join Date: May 2006
Location: Canberra
Posts: 17,694
Quote:
Originally Posted by Peter Ward View Post
OK... I have to ask...did you use a polynomial function to auto-flatten the background?

If not, that s-bend feature may well be real!
No polynomial functions but I did use an algebraic inverse to stretch the halo and cirrus. Because the full well capacity is proportional to pixel depth I never thought polynomial functions would work..?

Interesting

Mike
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