A 6x6 black-and-white image is represented as a Numpy arrayxas in the following,

>>> import numpy as np>>> x = np.eye(6) 

Note that this is not a grayscale or color image for which there would be three dimensions (e.g., 6 x 6 x 3). This can easily be visualized using Matplotlib'simshowfunction, as in the following:

>>> from matplotlib.pylab import subplots, cm >>> fig, ax = subplots() >>> ax.imshow(x,cmap=cm.gray_r) 

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