Thanks to a patch a bit while back for ListedColormap that allowed for
alphas to be given, I should now be able to use imshow() and imsave() with
colormaps. However, I find that the results are not correct. Particularly,
the alpha values seem to be assigned incorrectly. I am still working on
making a stand-alone version to demonstrate the problem, but has anyone
else noticed this?
produces an incorrect result while
produces a correct result. However, due to a bug in imsave, I can't do the
latter as a work-around.