Astrophotography Tutorial: How to Remove Gradients in Photoshop

In this astrophotography image processing tutorial, I'll show you a quick and easy way to remove gradients in your deep-sky image using Adobe Photoshop.

Follow the Step-by-Step Tutorial: http://astrobackyard.com/remove-gradi...
My Complete Image Processing Guide: https://bit.ly/astro-processing

This method uses the "Dust and Scratches" filter in Photoshop to create a synthetic flat frame that we can then subtract from our original image.

In the example, I smooth out the background sky in my image of the Leo Triplet of Galaxies. This method works best on astrophotos where 50% or more of the neutral background sky is present.

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