JS9: astronomical image display everywhere

JS9 brings astronomical image display to your browser and desktop:
  • display FITS images, tables, data cubes, multi-extension files
  • drag and drop FITS files and urls, PNG and JPEG images
  • retrieve and display data from astronomical archives
  • adjust the colormap and data scaling
  • pan, zoom, and blink images
  • perform image arithmetic, Gaussian smoothing
  • blend images and apply RGB image filters
  • configure mouse buttons and movements, touch events
  • create and manipulate geometric regions of interest
  • extend JS9 using plugins and the public API
  • perform data analysis (local and server-side)
  • configure and control JS9 via HTML elements in a web page
  • control JS9 externally, from a command shell or Python
  • print images, save images and sessions, multiple displays, ...
  • simplified desktop app for Mac

Drag and drop a FITS astronomical data file onto the display and JS9 functionality immediately becomes available: zoom, pan, colormaps, scaling, regions, WCS, image filters, smoothing ...

By extending JS9 with the plugin facility and the public API, you can perform local analysis on the displayed image: click the Plugins tab, create a region, move it around ...

Images loaded on the server, loaded via proxy (File menu), or uploaded (Analysis menu) all support server-side analysis. Results are displayed in your browser: click the Analysis tab, choose a task, create a region, move it around ...

Want a pristine JS9 display?

Source code @GitHub
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