How to resolve the error from toimage (from PIL.Image import fromarray as toimage)

for i in range(100):
  img = toimage(X_test[i])
  label = results[i].argmax()
  plt.subplot(10, 10, pos)
  plt.imshow(img)
  plt.axis('off')
  plt.title(cifar10_labels[label])
  pos += 1        
plt.show()

When I tried to display the image in Jupyter notebook by executing, I got the following error.

KeyError Traceback (most recent call last) /usr/local/lib/python3.6/dist-packages/PIL/Image.py in fromarray(obj, mode) 2415 typekey = (1, 1) + shape[2:], arr['typestr'] -> 2416 mode, rawmode = _fromarray_typemap[typekey] 2417 except KeyError:

KeyError: ((1, 1, 3), '<f4')

During handling of the above exception, another exception occurred:

TypeError Traceback (most recent call last) 1 frames /usr/local/lib/python3.6/dist-packages/PIL/Image.py in fromarray(obj, mode) 2417 except KeyError: 2418 # print(typekey) -> 2419 raise TypeError("Cannot handle this data type") 2420 else: 2421 rawmode = mode

TypeError: Cannot handle this data type

Changing the code as follows solved the problem.

for i in range(100):
  scale = 255.0 / np.max(X_test[i])
  img = toimage(np.uint8(X_test[i]*scale))
  label = results[i].argmax()
  plt.subplot(10, 10, pos)
  plt.imshow(img)
  plt.axis('off')
  plt.title(cifar10_labels[label])
  pos += 1        
plt.show()

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