I'm trying to build a tkinter GUI with python 3.5, and would like to interactively adjust the color palette for an image by moving the mouse in the canvas using PIL. In pseudo-code, I have something like
palette=color_map(x,y) # x,y are scalars indicating the position of the mouse in the Canvas image.putpalette(palette) photo.paste(image) This works just fine, but is very slow. The photo.paste(image) step takes about 0.15 s (using an image that is 4k x 4k). I read the manual on effbot, and they caution that the paste method would be slow if the image is display --- and I'm guessing that's what I'm doing. So my question is, what alternatives do I have to speed that step up. Thank you for any thoughts you might have... -Russell -- https://mail.python.org/mailman/listinfo/python-list
