Data and Image Analysis

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The key data and image analysis tasks are:

imhead — summarize and manipulate the “header” information in a CASA image (§ 6.2);
imcontsub — perform continuum subtraction on a spectral-line image cube (§ 6.3);
immath — perform mathematical operations on or between images (§ 6.5);
immoments — compute the moments of an image cube (§ 6.6);
imstat — calculate statistics on an image or part of an image (§ 6.7);
imval — extract values of one or more pixels, as a spectrum for cubes, from an image (§ 6.8);
imfit — simple 2D Gaussian fitting of single components to a region of an image (§ 6.4);
imregrid — regrid an image onto the coordinate system of another image (§ 6.11);
viewer — there are useful region statistics and image cube plotting capabilities in the viewer (§ 7).

More information about CASA may be found at the CASA web page