[gnuastro-devel] [task #14364] Add --size as an option to ImageWarp as an alternative to --scale

[Lee Kelvin]

URL:
  <http://savannah.gnu.org/task/?14364>

                 Summary: Add --size as an option to ImageWarp as an
alternative to --scale
                 Project: GNU Astronomy Utilities
            Submitted by: leeskelvin
            Submitted on: Wed 08 Feb 2017 08:21:45 PM UTC
         Should Start On: Wed 08 Feb 2017 12:00:00 AM UTC
   Should be Finished on: Wed 08 Feb 2017 12:00:00 AM UTC
                Category: ImageWarp
                Priority: 5 - Normal
              Item Group: New feature
                  Status: None
                 Privacy: Public
        Percent Complete: 0%
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any
                  Effort: 0.00

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Details:

In order to scale an image using ImageWarp one must currently provide a
scaling value using the --scale argument. If a user wishes to scale an image
to a particular output size, this necessitates that they also know the input
size such that they can calculate the scaling value.

I propose the addition of a --size argument to ImageWarp which will allow the
user to specify an exact output pixel size without needing to calculate the
scaling value beforehand. This will speed up image processing for many users,
and provides another quick means by which users may scale their imaging data.

Best regards, 
Lee Kelvin





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