Python 2.7: error in Canny Edge detection TypeError("Image data can not convert to float") -

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i using canny edge detection algorithm in python 2.7.12 image (.jpg)

enter image description here

i used following code:

import cv2 import numpy np matplotlib import pyplot plt img = cv2.imread('35.jpg')   edges = cv2.canny(img,150,200) plt.subplot(121),plt.imshow(img,cmap = 'gray') plt.title('original image'), plt.xticks([]), plt.yticks([]) plt.subplot(122),plt.imshow(edges,cmap = 'gray') plt.title('edge image'), plt.xticks([]), plt.yticks([]) plt.show()

but shows me error like

traceback (most recent call last):   file "d:/python/test4.py", line 11, in <module>     plt.subplot(121),plt.imshow(img,cmap = 'gray')   file "c:\python27\lib\site-packages\matplotlib\pyplot.py", line 3157, in imshow     **kwargs)   file "c:\python27\lib\site-packages\matplotlib\__init__.py", line 1898, in inner     return func(ax, *args, **kwargs)   file "c:\python27\lib\site-packages\matplotlib\axes\_axes.py", line 5124, in imshow     im.set_data(x)   file "c:\python27\lib\site-packages\matplotlib\image.py", line 596, in set_data     raise typeerror("image data can not convert float") typeerror: image data can not convert float

i saw many answers related unable rectify it. observed if save same image .png code run perfectly.what modifications should need in code run .jpg files? thanks.

i tried code.
problem occur when pass incorrect image path cv2.imread. otherwise, works fine. first of try check path image.





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