Thread: deconvolution
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Old 24-01-2009, 04:55 PM
Alchemy (Clive)
Quietly watching

Alchemy is offline
 
Join Date: Jul 2007
Location: Yarra Junction
Posts: 3,044
i use the one in WIN4AIP as it works the best for me.

with this one it selects the Point spread function (how blurry the stars are) using a click on small stars ... mine is typically 2.4 to 2.6 this will vary if you use a high mega pixel camera it could be as high as 5

the deconvolution process is a bit like a sharpening, a little bit at a time. I use typically 40 itterations . as each itteration is done it is displayed. at some point it will all go ugly as its overdone, this is typically where i stop.

use a small selection for testing , preferably a reasonably contrasty bit , before you do the whole image as it takes a while.

the smoother the image the better the result, as this proccess will make noise stand out even more.

i do it reasonably early in the process often just selectively blended back into the pre- deconvolved image ie dust lanes in a galaxy .
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