A few questions about image display

[Søren Hauberg]

fre, 31 10 2008 kl. 20:26 +1100, skrev Alasdair McAndrew:
> I've just started investigating octave as a possible open-source
> alternative to Matlab for image processing, and my first impressions
> of it are very good indeed.  However, I have some problems with regard
> to image display, using gnuplot.  A grayscale image is displayed
> correctly, but an RGB image is not.  If "im" is an m x n x 3 matrix
> representing the RGB image, then "imshow(im)" shows the image far too
> bright - it has to be scaled with "imshow(im/3)".  Why?

This is a bug. I know it's fixed in the development sources, but I can't
remember which versions of the 3.0.x series that had the bug. What
version are you using?

Søren