[Octave-bug-tracker] [bug #45565] Using imwrite to write an 8-bit iamge to BMP creates a 24 bit image

[Carnë Draug]

Update of bug #45565 (project octave):

                 Release:                   4.0.0 => dev                    

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Follow-up Comment #3:

This bug (or lack of it), may be dependent on the version of Graphics Magick
installed.

I can see a bug with it but different from the one originally reported:


octave> a = repmat (uint8 (0:255), 100, 1);
octave> imwrite (a, "test.bmp");
octave> [b, c, d] = imread ("test.bmp");
octave> whos
Variables in the current scope:

   Attr Name        Size                     Bytes  Class
   ==== ====        ====                     =====  ===== 
        a         100x256                    25600  uint8
        b         100x256                    25600  uint8
        c           0x0                          0  double
        d           0x0                          0  double



If a bmp file is always an indexed image (is this true?), then it should have
returned a colormap.

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  <http://savannah.gnu.org/bugs/?45565>

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