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cv2.error: OpenCV(4.1.0) C:\projects\opencv-python\opencv\modules\imgproc\src\color.cpp:182: error: (-215:Assertion failed) !_src.empty() in function 'cv::cvtColor'

See original GitHub issue

face_recognition version:4.1.0
Python version:3.7
Operating System:windows 10

Description

I’m having problem to run this program, the error under below Capture

gray = cv2.cvtColor(im,cv2.COLOR_BGR2GRAY) cv2.error: OpenCV(4.1.0) C:\projects\opencv-python\opencv\modules\imgproc\src\color.cpp:182: error: (-215:Assertion failed) !_src.empty() in function ‘cv::cvtColor’

What I Did

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Issue Analytics

State:
Created 4 years ago
Reactions:31
Comments:101 (1 by maintainers)

Top GitHub Comments

76reactions

ageitgeycommented, Oct 24, 2019

This a secondary error that basically just means the image you are trying to process didn’t load and was empty.

If you grabbed the image dara from the camera, it means the camera connection failed or isn’t configured correctly. If you loaded an image file, it means the loading failed.

44reactions

ghostcommented, Dec 25, 2019

I have same problem. My old code is : cap = cv2.VideoCapture(1)

Then I change my code, and problem has solved. Probably, opencv accepts my finger print input as a camera. Thus, I change VideoCapture parameter as follows: cap = cv2.VideoCapture(0)