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Old 25-04-2020, 10:15 PM
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Astrofriend (Lars)
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Join Date: Aug 2017
Location: Stockholm, Sweden
Posts: 487
A question on a forum about calibration for vignetting with Gimp got me curious. Is it possible ?

After some test I found it to be very easy to do, see my example:
http://www.astrofriend.eu/astronomy/...roduction.html

I will still do flat calibration in AstroImageJ, but for others this can be useful.

/Lars
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