[Octave-bug-tracker] [bug #48129] `imread` doesn't seem to read correctly

[Luis Mendo]

URL:
  <http://savannah.gnu.org/bugs/?48129>

                 Summary: `imread` doesn't seem to read correctly
                 Project: GNU Octave
            Submitted by: lmendo
            Submitted on: sáb 04 jun 2016 17:45:40 GMT
                Category: Octave Function
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Incorrect Result
                  Status: None
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 4.0.0
        Operating System: Microsoft Windows

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Details:

Try this:


[x, map] =
imread('http://users.wfu.edu/matthews/misc/jpg_vs_gif/testImage.gif');
-verbatim+

The original image has three colors. I expected variable `x` to be of type
`uint8` or `double`, so that the variable `map` could  indexed with it. But
`x` is `logical`


>> whos x map
Variables in the current scope:

   Attr Name        Size                     Bytes  Class
   ==== ====        ====                     =====  =====
        x         100x200                    20000  logical
        map       256x3                       6144  double


This doesn't seem to be correct, because color information in the image is
lost.






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