📜  cv2.error: OpenCV(4.5.3) C:\Users\runneradmin\AppData\Local\Temp\pip-req-build-q3d_8t8e\opencv\modules\imgproc\src\color.cpp:182: 错误: (-215 :Assertion failed) !_src.empty() in function 'cv::cvtColor' - 无论代码示例

This error happened because the image didn't load properly . So you have problem with the previous line cv2.imread my suggestion is :

check if the images exist in the path you give

check the count variable if he have valid number