AstroImageJ: Image Processing and Photometric Extraction for Ultra-Precise Astronomical Light Curves (Expanded Edition)
2016/01/31 by Karen A. Collins, John F. Kielkopf, Keivan G. Stassun +2 · 702 citations
Engineering · Physics and Astronomy · #Artificial intelligence #Astrometry #Astronomical Observations and Instrumentation #Astronomy and Astrophysical Research #Computer graphics (images) #Computer science #Computer vision #Database #File format #Graphical user interface #Image (mathematics) #Image file formats #Image processing #Operating system #Software #Stellar, planetary, and galactic studies #User interface #astro-ph.EP #astro-ph.IM #astro-ph.SR
paper · pdf · open access · doi:10.3847/1538-3881/153/2/77
published in The Astronomical Journal 153(2), 77 (Institute of Physics) · AstroImageJ User Guide (Expanded Version of AJ Paper arXiv:1601.02622)
arxiv created 2017/01/17 · openalex publication_date 2017/01/25 · arxiv updated 2017/09/27 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Abstract
ImageJ is a graphical user interface (GUI) driven, public domain, Java-based, software package for general image processing traditionally used mainly in life sciences fields. The image processing capabilities of ImageJ are useful and extendable to other scientific fields. Here we present AstroImageJ (AIJ), which provides an astronomy specific image display environment and tools for astronomy specific image calibration and data reduction. Although AIJ maintains the general purpose image processing capabilities of ImageJ, AIJ is streamlined for time-series differential photometry, light curve detrending and fitting, and light curve plotting, especially for applications requiring ultra-precise light curves (e.g., exoplanet transits). AIJ reads and writes standard FITS files, as well as other common image formats, provides FITS header viewing and editing, and is World Coordinate System (WCS) aware, including an automated interface to the astrometry.net web portal for plate solving images. AIJ provides research grade image calibration and analysis tools with a GUI driven approach, and easily installed cross-platform compatibility. It enables new users, even at the level of undergraduate student, high school student, or amateur astronomer, to quickly start processing, modeling, and plotting astronomical image data with one tightly integrated software package.
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