Convert a PIL image to a numpy array

Question

I want to convert a PIL image to a numpy array. Numpy's asarray function simply puts the image in a 0-dimensional array.

(Pdb) p img
<PIL.Image._ImageCrop image mode=RGB size=1024x0 at 0x106953560>
(Pdb) img.getdata()
<ImagingCore object at 0x104c97b10>
(Pdb) np.asarray(img.getdata())
array([], dtype=float64)
(Pdb) np.asarray(img)
array(<PIL.Image._ImageCrop image mode=RGB size=1024x0 at 0x106953560>, dtype=object)
(Pdb) np.asarray(img).shape
()
(Pdb) np.asarray(img, np.uint8)
*** SystemError: error return without exception set

The solutions on a similar SO question didn't work.

unutbu · Accepted Answer · 2014-05-19 18:56:49Z

5

Your img has size 1024x0:

PIL.Image._ImageCrop image mode=RGB size=1024x0 at 0x106953560

That is an image with 0 height. Therefore, the resultant NumPy array is empty. To fix, crop the image so that it has a positive width and height.

answered May 19, 2014 at 18:56

unutbu

886k197 gold badges1.9k silver badges1.7k bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

Convert a PIL image to a numpy array

1 Answer 1

Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related