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  • BBC Sky at Night

    Deal with uneven backgrounds and bloated stars

    Dec 15, 2022 3 minutes

    Expert processing tips to enhance your astrophotos

    BEFORE

    AFTER

    The GNU Image Manipulation Program (GIMP) is free imageprocessing software that can be used to process astronomy images. Its layout, adjustment and filter capabilities are very similar to Adobe Photoshop and it can be a good alternative for newcomers to astrophotography.

    Plug-ins are an excellent way to automate, simplify and speed up some of the complex image adjustments astrophotographers often need to make, such as star removal, colour

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