The code is not giving the output picture
import numpy as np
import cv2 as cv
img = cv.imread('Picture1.jpg',0)
cv.imshow('image',img)
cv.waitKey(0)
cv.imwrite('Picture1.jpg',img)
cv.destroyAllWindows()
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Kindly help me the code is not giving the picture in output – Muhammad Alyaan Jan 08 '21 at 13:37
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Unclear what you mean by " is not giving the picture in output " – Jan 08 '21 at 13:41
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Actually the code is running but it should give the output black and white image but it is giving no output – Muhammad Alyaan Jan 08 '21 at 13:43
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Your code works on my machine. What do you mean when you say "giving no output"? Do you not get a window showing the black and white image or do you get a window but it shows all black? Perhaps all white? Please explain what it is you are getting. – Jan 08 '21 at 14:00
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It is giving me output Process finished with exit code 0 no image no black white screen – Muhammad Alyaan Jan 08 '21 at 14:03
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Can you run your script from a Command Prompt if you're on Windows or from a terminal if on a different OS? How are you currently running your script? – Jan 08 '21 at 14:06
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i am doing it on windows – Muhammad Alyaan Jan 08 '21 at 14:14
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So run it from a Command Prompt. It might be your IDE that's wonky. – Jan 08 '21 at 14:16
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Check that cv.imread is not flagging an error of some sort, such as "no such file" – Andy Newman Jan 08 '21 at 15:29
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There i no error – Muhammad Alyaan Jan 08 '21 at 15:40
1 Answers
0
Make sure that the Picture1.jpg file is in the same directory as the python file you are running.
Or try calling startWindowThread():
import numpy as np
import cv2 as cv
img = cv.imread('Picture1.jpg',0)
cv.startWindowThread()
cv.imshow('image',img)
cv.waitKey(0)
cv.imwrite('Picture1.jpg',img)
cv.destroyAllWindows()
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