DIGITAL IMAGE PROCESSING TUTORIALS | Pedro RE'
GraXpert – A fast and easy way to remove gradients
Now integrated in PixInsigth
https://pedroreastrophotography.com/
GraXpert is designed to remove gradients from astroimages. Gradients are gradual changes in brightness that are not part of the astrophoto but are caused by external interference.
Some causes can be light pollution, incorrect or missing flat correction, natural brightness gradients of the night sky, or peculiarities of the optics used (such as shading in the form of a vignette).
Color casts can also be removed, and it generally makes sense to reduce the amount of the sky background in the astrophoto. In short: A gradient removal is very useful, if not mandatory.
GraXpert is a freely available open-source software that was programmed exclusively for this purpose. It works as a stand-alone program, and now it is integrated in PixInsigth.
NGC7000_SAMYANG_135_F28_41X5Min_Median_20231004_DDP_crop_proc_NXT_BXT by Pedro Re', on Flickr
NGC7000_SAMYANG_135_F28_41X5Min_Median_20231004_DDP_crop_proc_Annotated by Pedro Re', on Flickr
NGC7000_SAMYANG_135_F28_41X5Min_Median_20231004_DDP_crop_proc_Annotated_NEG by Pedro Re', on Flickr
WIDE_FIELD_CMOS_IMAGING_NGC7000_20231004 by Pedro Re', on Flickr
roll-off-roof_1_20231004_mosaic by Pedro Re', on Flickr
roll-off-roof_1_20231004 (23) by Pedro Re', on Flickr
DIGITAL_IMAGING_TUTORIALS_GRAXPERT_PIXINSIGHT_GHS_NGC7000_20231004 by Pedro Re', on Flickr
NGC7000_SAMYANG_135_F28_41X5Min_Median_20231004_DDP_crop_proc_NXT_BXT_GraXpert_proc by Pedro Re', on Flickr
NGC7000_SAMYANG_135_F28_41X5Min_Median_20231004_DDP_crop_proc_NXT_BXT_GraXpert_proc_neg by Pedro Re', on Flickr
