为什么Cascade会返回这么多面孔？

Question

I'm trying to learn OpenCV from its examples, but I've met a big problem with objectDetection.cpp . I ran it on my laptop, but it returns me a huge number of faces in the first run and it could not continue to run another round in while . Has anybody encountered something like this before?

Before defect:

After defect:

Answer 1

• Try this.May be this will help you.

   face_cascade.detectMultiScale(frame_gray, faces, rejectLevels, levelWeights, 1.1, 3, 0 | CV_HAAR_SCALE_IMAGE, Size(16, 16), Size(0, 0), true);