[Image-SIG] Is getdata() or load() more efficient for accessing pixels?

Christopher Barker Chris.Barker at noaa.gov
Wed Dec 5 18:50:45 CET 2007

jorma kala wrote:
> I read that the getpixel function of the PIL library is relatively slow.

Depending on your needs, numpy may be a good bet:


Be sure to look at the comment below, demonstrating the new 
Image.fromarray() function.

And you can convert a PIL image to a numpy array with no data copying:

arr = numpy.asarray(PIL_image)


Christopher Barker, Ph.D.

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