imshow is not working in the precompiled packages

[John W. Eaton]

On 24-Oct-2007, Ralf Dragon wrote:

| 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).

I'm moving this to the bug list.

jwe