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Steffenhir / GraXpert

GraXpert is an astronomical image processing program for extracting and removing gradients from the background of your astrophotos.
https://www.graxpert.com/
GNU General Public License v3.0
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Processing 32bit tiff results in color banding with ver. 3.0.2 #157

Open Michaellkovacs opened 1 month ago

Michaellkovacs commented 1 month ago

Opening and processing a 32bit tiff (created by DSS) and saving as a 16bit tiff in Graxpert, results in color banding when stretching in Adobe Photoshop. The work around is to either open the autosave.tif in Adobe Photoshop and save as a 16bit tiff or process the auto save.tif as is in Graxpert but save the processed image as 32bit then convert to 16bit in Photoshop.

schmelly commented 1 month ago

Hi Michaell,

not sure how much we can do about this. Generally I recommend you do any linear processing, including stretching, in 32 bit, e.g., in Siril and convert to 16 bit afterwards (i.e., after stretching).

CS, David