I receive the following error message when running this code: img = cv2.GaussianBlur(img, (5,5), 0) error: OpenCV(4.5.1) C:\Users\appveyor\AppData\Local\Temp\1\pip-req-build-oduouqig\opencv\modules\imgproc\src\hough.cpp:2253: error: (-215:Assertion failed) !_image.empty() && _image.type() == CV_8UC1 && (_image.isMat() || _image.isUMat()) in function 'cv::HoughCircles' Any idea why this is happening?

I think I have solved this problem: the first time we use Visual Studio Code, we should have on the left side a button with the wording "Open folder". We have to click on that folder and to select the folder in which we have the image and the .py file. I hope this can be useful to other people.

Follow this topic

Jeff Englander

Last answered:

07 Jul 2022

Posted on:

20 Apr 2021

Python Programmer Bootcamp: Starting to work in Visual Studio

in Python Programmer Bootcamp / Starting to work with Visual Studio

1 answers ( 0 marked as helpful)

Alessandro Imbrìaco

Super learner

Posted on:

07 Jul 2022

Python Programmer Bootcamp: Starting to work in Visual Studio

Submit an answer

related questions