Small, indispensable tools, useful for anyone running a Linux machine. Linux utilities to maximise your productivity. We start right at the basics and teach you everything you need to know to get started with Linux.Įssential Linux system tools focuses on small, indispensable utilities, useful for system administrators as well as regular users. New to Linux? Read our Linux for Starters series. Machine Learning explores practical applications of machine learning and deep learning from a Linux perspective. Replace proprietary software with open source alternatives: Google, Microsoft, Apple, Adobe, IBM, Autodesk, Oracle, Atlassian, Corel, Cisco, Intuit, and SAS. We offer helpful and impartial information. Hundreds of in-depth reviews offering our unbiased and expert opinion on software. Each article is supplied with a legendary ratings chart helping you to make informed decisions. The largest compilation of the best free and open source software in the universe. Return to Astronomical Data Analysis Home Page License: Variety of open source license agreements: GPL, LGPL, BSD Website: //saoimageds9/homeĭeveloper: William Joye, Eric Mandel, Steve Murray, John Roll File Formats supported: FITS, FITS Image, FITS Table, FITS Binary Events Table, FITS HEALPIX Table, FITS Data Cube, FITS Multiple Extension Data Cube, FITS Multiple Extension Multiple Frames, FITS Mosaic, FITS Mosaic Data Cube, FITS RGB, Split FITS, Photo, Data Array, External Format Support, External Analysis Support, Region Files, Color Lookup Table, WCS, Preference File, Startup File, and TCL.Observation Logs: Chandra Archive, CFHT, Exposures, ESO Science Archive, HST Archive, XMM Observation.High Energy: Chandra Source, 2XMMi Source, Second ROSAT PSPC.Infrared: 2MASS Point Sources, IRAS Point Sources.Optical: ASCC-2.5, Carlsberg Meridian 14, GSC 1.2, GSC 2.2, GSC 2.3, AC 2000.2, NOMAD, PPMX, SAO J2000, SDSS Release 5, SDSS Release 6, SDSS Release 7, SDSS Release 8, Tycho-2, USNO-A2.0, USNO-B1.0, USNO UCAC2, USNO UCAC2 Bright Star Sup, USNO UCAC3.Overlay symbols from multiple catalogs on the current image:.Full support for loading, displaying, filtering and saving catalogs.Smoothing – implemented on a per-channel basis for RGB.Coordinate Grids – create and display coordinate grids as an overlay on an image.DS9 can create and display contours as an overlay on a data image. Contours – curves along which the pixels have a constant value.The first release of SAOImage DS9 was made available in 1999. The GUI is implemented as a very thin layer of Tk. SAOImage DS9 is composed of approximately 20 open source packages.ĭS9 is a Tcl/Tk application. It is highly configurable and extensible to meet the evolving needs of the astronomical community. DS9 supports the direct display of FITS images and binary tables, multiple frame buffers, region cursor manipulation, many scale algorithms and colormaps, and easy communication with external analysis tasks. It also incorporates the new X Public Access (XPA) mechanism to allow external processes to access and control its data, GUI functions, and algorithms. It is a Tk/Tcl application which utilizes the SAOtk widget set. It provides for easy communication with external analysis tasks and is highly configurable and extensible via XPA and SAMP.ĭS9 is the next version of the popular SAOtng display program. DS9 supports FITS images and binary tables, multiple frame buffers, region manipulation, and many scale algorithms and colormaps. SAOImage DS9 is an open source astronomical imaging and data visualization application.
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