Author Topic: Processing example: Using ABE and DBE to correct light pollution gradients  (Read 2160 times)

Offline astroedo

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The Astro Imaging Channel: Challenge nr 1

The Astroimaging Channel on Google+ proposed an image processing challenge (read here) based on a set of RGB images of the Markarian chain.

This was the challenge:

Gradient Removal while preserving star color.
A few months back, I wanted to try imaging my blue channel high up in the sky.  It didn't work out as planned and I have a terrible gradient through the image.  I've been able to get rid of the gradient, but it leaves a bad color cast through my stars.  The challenge is to remove the gradient and preserve the star color.



Here my solution in PixInsight.

http://www.radice.biz/articoli/translations/88-the-astro-imaging-channel-challenge-nr-1