Now you can load these files properly because PixInsight knows which values correspond to the black and white points of the numeric range the image has been referred to.

Open an ImageCalibration->CosmeticCorrection tool and open the Use Defect List panel. Locate defective pixels or columns that have escaped calibration by examining a calibrated master flat frame …

Symbols are available for most functions: addition, subtraction, multiplication, powers. There are also functions that are non loop based like mean(), median(), bwmv(). These operate on an entire image …

Processing Flow access PixInsight’s processes and scripts. The easiest is using th pull-down menu along the top of the screen. You can find all processes under Process > All Processes. To its right, …

Process an image in AI mode through the GraXpert user interface to trigger the download of the default AI models. You can load multiple AI models if needed, but generally, only the latest one is useful. …

PixInsight One Shot Color Workflow (Adapted from Harry’s Astro Shed basic flow)

One trick (source: PixInsight forum) is to provide a hint to Star Alignment by making the reference a preview. In the example below, the next image should align into the top left quadrant. Star Alignment …