show image opencv python
import cv2
img = cv2.imread('/path_to_image/opencv-logo.png')
cv2.imshow('image',img)
cv2.waitKey(0)
cv2.destroyAllWindows()
# to use it in a loop
k = cv2.waitKey(0)
if k == 27: # wait for ESC key to exit
cv2.destroyAllWindows()
elif k == ord('s'): # wait for 's' key to save and exit
cv2.imwrite('messigray.png',img)
cv2.destroyAllWindows()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')Copyright © 2021 Codeinu
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