My OS is WIN11
Siril version 1.2.3
multiple night stack in Sirilic V1.15.2
My flow includes: crop, background extraction, remove green, photometric colour calibration
then starnet with prestretch checked and starmask checked.
Most of the time this produces great results, however, occasionally, the starless image is blank, a gray image. The starless image opens normally with a stretched view; when I open histogram transformation, the stretched view becomes linear (normal), but when I stretch the view the image is blank, a flat grey screen.
I found that the starless image is a good file, because, I can open and process it it pixinsight. Siril is not able to process the file tho.
I deleted the processing and .fits file that generated the attached phone pics. I have had this issue a few times and I’ve tried restacking/processing the data a few times in the hope of getting a good result. I stacked the images and processed again to include the result with you.
I include the starless .fits, log, and screenshot of starless in autostretch and starless in linear with the autostretch algorithm applied which has resulted in a black screen this time.
I also have the cropped, calibrated .fits file as it is prior to applying starnet that I could also include, if this may help.
versions and OS are still the same as originally posted.