SAOImage DS9 is an astronomical imaging and data visualization application. DS9 supports FITS images and binary tables, multiple frame buffers, region manipulation, and many scale algorithms and colormaps. It provides for easy communication with external analysis tasks and is highly configurable and extensible.
DS9 is a stand-alone application. It requires no installation or support files. Versions of DS9 currently exist for Sun Solaris, Sun Solaris64, Linux, Linux64, MacOSX Intel and PPC, Darwin Intel and PPC, and Windows XP. All versions and platforms support a consistent set of GUI and functional capabilities.
DS9 supports advanced features such as multiple frame buffers, mosaic images, tiling, blinking, geometric markers, colormap manipulation, scaling, arbitrary zoom, rotation, pan, and a variety of coordinate systems. DS9 also supports FTP and HTTP access.
The GUI for DS9 is user configurable. GUI elements such as the coordinate display, panner, magnifier, horizontal and vertical graphs, button bar, and colorbar can be configured via menus or the command line.
DS9 is a Tk/Tcl application which utilizes the SAOTk widget set. It also incorporates the X Public Access (XPA) mechanism to allow external processes to access and control its data, GUI functions, and algorithms.
What is new in this release:
- This version adds true 3D data visualization, color tags, and cropping.
- Regions now support analysis tasks unique to each region type.
- TIFF, JPEG, and PNG files can be loaded and exported directly.
- The GUI has been rebuilt.
- New WCS support for non-FITS WCS projections has been added to DS9: TNX, ZPX, SCAMP, SIP, and HEALPIX.
- Enhancements and improvements have been made in the support for the following FITS WCS projections: COD, COO, COE, COP, ZEA, and CAR.
What is new in version 5.4 Beta:
- This release removes support for Chandra Source Catalog by request.
- It adds support for mask transparency and adds new mask properties.
- It adds grid title support.
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