imshow is not working in the precompiled packages

[Ralf Dragon]

Hello,
I am giving courses in pattern recognition with examples in octave. When
I checked if they work on windows, too, I found out that none of the
precompiled packages from sourceforge were able to to handle the imshow
command correctly.

In version 2.1.73, imshow(double(eye(100))) results in an internet
explorer window opening a website with a black image on it. It is a bmp
that window's standard tools can't open ("paint" also displays a black
image). I checked other tools and think now the bmp is corrupted.

In version 2.9.15, imshow(double(eye(100))) results in a gnuplot window
opening that shows a colerful legend with incredible values (e.g.
2e+32). The image is not visible (just a colerful box with some small
boxes in other colors in it). The colors and the legend random arbitrary
when I execute the command again. Sometimes, the following error is
displayed.

"gnuplot> set palette file "-" binary record=64 useing 1:2:3:4;
                                                               ^
"line 0: Gray scale not sorted in gradient."

Is there anything I missed that everyone else knows or is noone using
octave under windows (I mean displaying images is an important feature
of octave).

Ralf


-- 
Dipl.-Ing. Ralf Dragon                           Phone: +49 511 762 5326
Institut für Informationsverarbeitung (TNT),       Fax: +49 511 762 5333
Leibniz Universität Hannover, Appelstr. 9A,   address@hidden
30167 Hannover, Germany           http://www.tnt.uni-hannover.de/~dragon

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