Keywords: imager

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[rgb]1,0,0IMAGER is an interferometric imaging package, tailored for usage simplicity and efficiency for multi-spectral data sets.

[rgb]1,0,0IMAGER is *** NOT *** [rgb]1,0,0MAPPING

[rgb]1,0,0IMAGER was created because the initial infrastructure for imaging in the [rgb]1,0,0MAPPING program was not adapted to the implementation of imaging methods that became possible and/or were required for NOEMA (and useable for ALMA), such as self-calibration, wide band imaging, or routine processing of Mosaics and Short spacings.

The [rgb]1,0,0IMAGER design takes great care of efficiency, by using parallel programming and minimizing Input/Output on files. This lead to a concept with a single magenta`READ` of data, a few (in general only 2) simple processing commands with built-in intelligent parameter guesses, a visual user control, and a single magenta`WRITE` of the results once the user is satisfied of it.

We took the opportunity to revise and streamline the user interface, providing access to all tools through simple commands. A special effort was put on the visualization tools, which provide enhanced speed and capabilities, yet preserving a very high level of compatibility with those previously offered in [rgb]1,0,0MAPPING.

[rgb]1,0,0IMAGER was derived from [rgb]1,0,0MAPPING by S.Guilloteau. T.Jacq and E.diFolco made numerous suggestions about the user interface, and helped testing and documenting the program.

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