Hydrogen Alpha Solar Imaging Pipeline

Overview

A set of utilities and a pipeline for processing raw hydrogen-alpha solar imaging using lucky imaging ("image stacking"). Designed as a specific use-case replacement for PIPP & Autostakkert.

The current and planned steps include: * Flat and dark correction * Glitch frame detection * Quality estimation filtering * Center-of-mass centering alignment * Cropping * Masking * Radiometric correction * Parallactic rotation for altazimuth mounting * Hot pixel detection and correction (planned, partially implemented) * Debayering (planned, partially implemented) * Stacking (Shift-and-add method)

Future Plans: * GUI Support * Lunar & planetary

process_ha

Processes a solar observation.

``` USAGE: process_ha [FLAGS] [OPTIONS] --inputs ... --latitude --longitude --output

FLAGS: --help Prints help information -v Show verbose output -V, --version Prints version information

OPTIONS: -B, --blue Blue weight -d, --dark Dark frame image -f, --flat Flat frame image -G, --green Green weight -h, --height Crop height -i, --inputs ... Input SER files -l, --latitude Observer latitude -L, --longitude Observer longitude -m, --mask Image mask -S, --maxsigma Maximum sigma value (quality) -s, --minsigma Minimum sigma value (quality) -o, --output

Output file -P, --percentofmax Scale maximum value to percentage max possible (0-100) -q, --quality Quality limit (top % frames) -R, --red Red weight -t, --threshold Object detection threshold -w, --width Crop width ```

run.sh

A wrapper for process_ha with standardized parameters for chromosphere, prominenance, and optional white-light stacks. Meant to be easily editable given the requirements/specifications of an observation.

Required parameter: root directory of the observation files. Optional parameter: version string as output filename suffix.

ser_extract

Extracts individual frames from ser files, optionally performs calibrations and quality limiting/sorting, and saves them to an output directory.

``` SAGE: ser_extract [FLAGS] [OPTIONS] --inputs ...

FLAGS: -h, --help Prints help information -q, --quality Quality estimation sorting -v Show verbose output -V, --version Prints version information

OPTIONS: -d, --dark Dark frame image -f, --flat Flat frame image -i, --inputs ... Input -S, --maxsigma Maximum sigma value (quality) -s, --minsigma Minimum sigma value (quality) -o, --output

Output directory ```