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xvloadimage with imagesc and colormap
From: |
Mike Miller |
Subject: |
xvloadimage with imagesc and colormap |
Date: |
Tue, 7 Mar 2006 20:13:14 -0600 (CST) |
I'm finding it tricky to make an imagesc() plot with a particular colormap
and save it in a file (I want PNG but can get to that from some other
format if necessary). I think maybe imagesc() doesn't respect the
colormap, but if I try to use image(), or imshow(), the image is just
solid black. My colormap is grayscale. I could just use
colormap("default"), and I tried it but it didn't work. The commmand
"imagesc(X,1)" makes a reasonable image but it isn't using my colormap.
If I want to save an imagesc() image to a file, what do I have to do? It
isn't using gnuplot, so the usual __gnuplot_set__ methods don't work.
In case it matters, I'm running Octave 2.1.71 under Linux with Octave
Forge and I don't have xv or ImageMagick installed, but I do have
xloadimage.
Mike
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- xvloadimage with imagesc and colormap,
Mike Miller <=