[Image-SIG] Image file to numeric representation
Wed, 14 Apr 1999 21:23:24 +0200
Ken N. Seergobin wrote:
> I have what is probably a very simple question...
> Once an image has been opened, how does one go about converting
> the internal format to a numeric representation that can
> be analyzed? As an example, I would like to assess the pairwise
> correlation of various images.
here's one way to do it:
im = Image.open("data.pgm")
data = list(im.getdata())
data is now a "flattened" list containing
the pixels for the first row, followed by
the second row, etc.
also see the various posts on PIL/NumPy