[Image-SIG] Creating a Transparent Image and Placing it Over Another Image
Christopher Barker
Chris.Barker at noaa.gov
Tue Apr 7 04:52:51 CEST 2009
Wayne Watson wrote:
> So far I've used Python with Tkinter, and a touch of PIL. I'm pretty
> bound by Tkinter, since I'm modifying a program that used it quite a bit
> for the GUI ability rather than analysis of images with IP (image
> processing).
OK, then dig around in the Tk docs and examples you can find.
In any case, what I'm suggesting is that you don't need any fancy
transparency in PIL -- you simply draw your image onto the screen
(probaly add it to the Tk Canvas), then you draw your circle with the
cross-hair on top of it, using Tk -- you aren't changing your image, so
you can get it back by re-drawing it, or just removing the cross hair.
-Chris
--
Christopher Barker, Ph.D.
Oceanographer
Emergency Response Division
NOAA/NOS/OR&R (206) 526-6959 voice
7600 Sand Point Way NE (206) 526-6329 fax
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Chris.Barker at noaa.gov
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