Google Codelab

cv2.imshow() is disabled in colab. Instead use

from google.colab.patches import cv2_imshow

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Loading image file in CoLab

Read the following for detailed information: Load images by Google Colab

Method 1: How to import an image from local drive

# Upload image file from local drive
from google.colab import files
uploaded=files.upload()

check the image file

import cv2
from google.colab.patches import cv2_imshow  
import matplotlib.pyplot as plt
import matplotlib.image as mpimg

imgfName='cat2.jpg'

# Method 1: Open Image  with cv2
img=cv2.imread(imgfName)
cv2_imshow(img)

# Method 2: Open Image  with matplotlib
img=mpimg.imread(imgfName)
plt.imshow(img)

Method 2: How to upload an image from local drive

Loading dataset in CoLab