opencv.imshow will cause jupyter notebook crash

Question

I check other question on google or stackoverflow, they are talking about run cv2.imshow in script, but my code run in jupyter notebook.

Here is my configuration:

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Answer 1

I am not sure if you can open a window from Jupyter Notebook. cv2.imshow expects a waitKey which doesn't work in Jupyter.

Here is what I have done (using OpenCV 3.3):

from IPython.display import display, HTML
import cv2
import base64

def imshow(name, imageArray):
     _, png = cv2.imencode('.png', imageArray)
     encoded = base64.b64encode(png)
     return HTML(data=''''''.format(name, encoded.decode('ascii')))

img = cv2.imread('./media/baboon.jpg',cv2.IMREAD_COLOR)
imshow('baboon', img)

If you don't need to use cv2, just:

from IPython.display import Image
Image('./media/baboon.jpg')