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View submission: What If?: Ink Molecules
There are 161 black pixels in this image: http://what-if.xkcd.com/imgs/a/106/pixels.png
Fun fact: Randall was a little sloppy and left some pixels that are black, but transparent. There are 161 black non-transparent pixels, 917 black transparent pixels and 1962 white transparent pixels.
In [54]: i = requests.get('http://what-if.xkcd.com/imgs/a/106/pixels.png').content
In [55]: io = StringIO(i)
In [56]: im = Image.open(io)
In [57]: im.getcolors()
Out[57]: [(1962, (255, 0)), (161, (0, 255)), (917, (0, 0))]
There's nothing here!