How Do I Show An Image In Google Colab?

When I use cv2.imshow(img) colab throws a DisabledFunctionError (https://github.com/jupyter/notebook/issues/3935). Using cv2_imshow(img) I am getting another error, AttributeError

Solution 1:

Using cv2.imshow(img) in Google Colab returns this output:

DisabledFunctionError: cv2.imshow() is disabled in Colab, because it causes Jupyter sessions
to crash; see https://github.com/jupyter/notebook/issues/3935.
As a substitution, consider using
  from google.colab.patches import cv2_imshow

Accordingly, you can simply use:

from google.colab.patches import cv2_imshow
import matplotlib.pyplot as plt

img = "yourImage.png"
img = cv2.imread(img) # reads image
plt.imshow(img)

Solution 2:

Try this:

from google.colab.patches import cv2_imshow
cv2_imshow(img)