I want to create a PIL image from a NumPy array. Here is my attempt:
# Create a NumPy array, which has four elements. The top-left should be pure
# red, the top-right should be pure blue, the bottom-left should be pure green,
# and the bottom-right should be yellow.
pixels = np.array([[[255, 0, 0], [0, 255, 0]], [[0, 0, 255], [255, 255, 0]]])
# Create a PIL image from the NumPy array
image = Image.fromarray(pixels, 'RGB')
# Print out the pixel values
print image.getpixel((0, 0))
print image.getpixel((0, 1))
print image.getpixel((1, 0))
print image.getpixel((1, 1))
# Save the image
image.save('image.png')
However, the print out gives the following:
(255, 0, 0)
(0, 0, 0)
(0, 0, 0)
(0, 0, 0)
And the saved image has pure red in the top-left, but all the other pixels are black. Why are these other pixels not retaining the colour I have assigned to them in the NumPy array?
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