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EXTRACT

        EXTRACT

    Extracts a subset of an input image. The output image can be larger than
    the subset; in this case the additional pixels are blanked if the output
    image  is  being  created, unmodified if it already exists.  It works on
    images of any dimensions, and any subset  of  the  input  image  can  be
    placed anywhere in the output image.

    This  task  can also be used to build a N+P dimensional image from a set
    of N dimensional ones, by initializing the output image  once  with  its
    full dimensions and then placing the (subset of the) input images at the
    appropriate place in the output image.


Gildas manager 2020-07-04