按下面的方法安裝:
http://blog.sina.com.cn/s/blog_140c4cf3d0102wm0o.html
之后跑opencv demo(facedetect)出現如下問題:
Exception has occurred: TypeError
OpenCV returned NULL
File "D:\Downloads\opencv-2.4.13\opencv\sources\samples\python\facedetect.py", line 63, in <module>
cascade = cv.Load(options.cascade)
請問一下這是什么原因?
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