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IRAF ( an acronym for Image Reduction and Analysis Facility ) is a collection of software written at the National Optical Astronomy Observatory ( NOAO ) geared towards the reduction of astronomical images in pixel array form.
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IRAF and for
Just a few examples of functionality available in IRAF would be calibration of the fluxes and positions of astronomical objects within an image, compensation for sensitivity variations between detector pixels, combination of multiple images or measurement of the redshifts of absorption or emission lines in a spectrum.
* IRAF installation guide for Windows via Cygwin
In a wider context, KAPPA offers facilities not in IRAF, for instance handling of data errors, quality masking, a graphics database, availability from the shell, as well as more n-dimensional applications, widespread use of data axes, and a different style.
IRAF and is
The licensing status of IRAF is conflicted but generally follows the MIT license scheme, with some older parts of the code under a different license.
In March 2012, NOAO released v2. 16 of IRAF, citing one of the " new capabilities " as " Removal of all license restrictions-IRAF is now free ".
IRAF and at
In the former respect at least, it was analogous to the US IRAF project, with which it long maintained a friendly rivalry.
IRAF and NOAO
A full IRAF working environment usually requires two other applications: an extended xterm window with a graphics windows ( called xgterm and distributed in a separate X11-IRAF package by NOAO ) and an image display program referred to as an " image server ".
IRAF and .
IRAF commands ( known as tasks ) are organized into package structures.
Additional packages may be added to IRAF.
IRAF allows users to write their own tasks in two main ways.
* IRAF. Net Forum
With the automatic data conversion and the availability of KAPPA and other Starlink packages from within the IRAF command language, it's possible to pick the best of the relevant tools from both systems to get the job done.
acronym and for
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Capitalised, BASIC is sometimes taken as an acronym that stands for British American Scientific International Commercial.
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COINTELPRO ( an acronym for Counterintelligence Program ) was a series of covert, and often illegal, projects conducted by the United States Federal Bureau of Investigation ( FBI ) aimed at surveying, infiltrating, discrediting, and disrupting domestic political organizations.
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acronym and Image
The name comes from BLIT, which is no acronym but usually is interpreted as BLock Image Transfer.
It is commonly believed that Blit is an acronym for BLock Image Transfer, but that is not the case.
acronym and Reduction
It is an acronym of Message ANalysis and Data Reduction for the Integration of Links.
acronym and Analysis
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LHASA in this case is an acronym for Logic and Heuristics Applied to Synthetic Analysis.
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