Siril version 1.20 (version 1.21 has other issues) using starnet on a sequence leaves a lot of faint star trails.
I am using Siril on Mac Catalina.
The starless stack looks good until I stretch it (Histogram auto stretch or asinh). Then many faint star trails show up.
I had hoped that performing the star removal on the sequence would produce a better result.
Here are some of my steps
- Perform Background Extraction and PCC on the reference image, and save that change.
- Register the stars with Global Star Registration
- Stack that new sequence (stars)-has comet streak
- Perform a comet registration-
- Stack that result-has expectedly all streaked stars
- Perform Starnet star removal on the star registration sequence
- Used the opened (linear) reference image from the sequence
- Let starnet do the stretch
- Tried with and without 2X upsampling, no difference
- Selected “apply to Sequence”
- Opened the starless comet image to stretch.
- Any amount of stretching reveals numerous faint star trails.
I do have a properly processed star mask to use for star recomposition.
The stretched starless comet image requires a great deal of further processing (in Affinity Photo) to minimize the star trails and sharpen the comet.
What else can I do to prevent getting those faint star trails?
Fred