Siril 1.2.6 and starnet++ vs. Seti Astro and starnet++

Software Siril
1

Star removal in siril with starnet++ only works correctly if starnet++ is used directly after stacking. As soon as the photometric color calibration is used beforehand, for example, the calculation of the starless image produces an unusable result.
If I use “Seti Astro”, the star removal works perfectly even after the color calibration. Starnet++ is also integrated there.
In both cases, both the initial image and the version of starnet++ are exactly the same.

If I treat the image after the photometric color calibration with the GUI of starnet++ (i.e. without siril), the result looks just as bad as out of siril. So seti atro does a much better job.

How can the different behavior be explained?

Windows 11 is used as the operating system.

2

What do you mean by unusable result? I always use starnet after color calibration with no issue on my side.
We need more information, maybe screenshot, etc.

3

After stacking, only the color calibration was performed. The significantly better result is that of Seti Astro.

seti atsro_starless
seti atsro_starless6157×4063 578 KB

siril_starless
siril_starless6157×4063 1.02 MB

4

The error here is you forgot to check the linear option in the starnet tool. THis is a common issue.

5

Thank you, that’s the solution.
I assumed that if AutoStretch is enabled in Siril, the Linear option should not be enabled. However, Autostretch is for preview only and has no effect on the data sent to starnet++.