python image library making dotty gifs
lard at tardis.ed.ac.molar.uk
Fri Jun 25 13:53:50 CEST 2004
Alex Hunsley wrote:
> I'm using python image library 1.1.4
> (http://www.pythonware.com/products/pil/) to plot images.
> However, when I save an image to a gif file, it comes out very
> dotty/ithered looking, even if it's a picture consisting only of one
> Here's some example code that produces a dotty gif:
> # pymand joy!
> import Image
> import ImageDraw
> im = Image.new("RGB", (imageWidth, imageHeight))
> draw = ImageDraw.Draw(im)
> for y in range (0,imageHeight):
> for x in range (0, imageWidth):
> draw.point((x, y), (128,128,128))
> # saving as a gif comes out dotty/dithered looking!
> im.save("plotImage.gif", "GIF")
> you can see the output gif here:
sorry, duff link, should be .org.uk:
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