pseudocolor visual and colormap for PIL or tk?
Fredrik Lundh
effbot at telia.com
Tue Sep 5 13:21:41 EDT 2000
eric frey wrote:
> Is it possible to set up a window to display an image with a pseduocolor visual
> and use an installable colormap? I am trying to display grayscale images
> on an 8 bit display and the default TrueColor visual results in a limited
> number of gray values so the images look posterized.
here are a few things to try:
# use a custom colormap for this window
mywindow = Toplevel(colormap="new")
# use a grayscale visual for this window
# (not all X servers support mixed visuals)
mywindow = Toplevel(visual="grayscale 8")
# display this image using 256 levels of gray
image = PhotoImage(..., palette=256)
</F>
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