how to read an image using cv2 code example
Example: cv2 load image
import numpy as np
import cv2
import matplotlib.pyplot as plt
%matplotlib inline # if you are running this code in jupyter notebook
img = cv2.imread('/path_to_image/opencv-logo.png',0) # reads image 'opencv-logo.png' as grayscale
plt.imshow(img, cmap='gray')