My pipelie is in NanShan1m-pipeline.ipynb
The process is quite straightforward.
I should check the results for every step.
The camere with four gate readout mode data reduction pipeline is NanShan1m-pipeline-old-cam.ipynb
The overscan is substracted by the median value of the overscan region.
I readout the center 2000X2000 pixels, then the edge of the flat field is over exposured, no idea why.
I trim the over exposure region in this pipeline.