<human>:  crop black out of image.
<bot>: = 0
  return img

# Enter the image
img = np.random.randint(0, 255, size=(100, 100, 3), dtype=np.uint8)

# Calling the function
print((crop_black(img).shape))

#Example Output
# (100, 100, 3)

#Remember to inspect code for bugs.