Snapchat_filter
Hey @monika, please explain issue you are facing. And please share your ipynb notebooks so that we can see the error there itself. To share the ipynb notebook, upload it on google drive and than share the link here.
showing error in xml files
Hey @monika, this is due to opencv version. Later versions didn’t supported the xml files. Use this command
pip install opencv-python==4.0.1.23
Hope this cleared your doubt. 
its not working
showing some error in code
please check the code once
Please share the screenshot of the error, code seems fine.
C:\Users\sanja\Desktop\Monika\coding block\ML\OpenCV\snapchat_filter>python snap_filter.py
Traceback (most recent call last):
File “snap_filter.py”, line 14, in
ret,frame=cap.read()
AttributeError: ‘numpy.ndarray’ object has no attribute ‘read’
Replace
ret,frame = cap.read()
to
frame = cap
Also your code is for video stream, you need to modify it for a single image, do you code in jupyter notebook and use plt.imshow() instead of cv2.imsho() for your convenience.
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