[Octave-bug-tracker] [bug #60336] [octave forge] (image) imresize does not accept complex input values

[Hartmut]

URL:
  <https://savannah.gnu.org/bugs/?60336>

                 Summary: [octave forge] (image) imresize does not accept
complex input values
                 Project: GNU Octave
            Submitted by: hardy
            Submitted on: Sun 04 Apr 2021 03:55:30 PM UTC
                Category: Octave Forge Package
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Matlab Compatibility
                  Status: None
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
                 Release: other
         Discussion Lock: Any
        Operating System: Any

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Details:

As mentioned in bug #60226, the Matlab version of imresize also accepts images
with complex numbers as inputs. The current Octave version does not.

Here is a small example code that currently fails in Octave but works fine in
Matlab:


in = ones(2) +1i
out = imresize(in, 1.5)


Matlab does not mention on its documentation page that it supports complex
input values, but I have tested this with Online-Matlab and it really does.
The Matlab result for the above code is identical to the output of
"ones(3)+1i".




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