opencv canny边缘检测

	Mat m_FaceImg=imread("D:/faceData/PIEsub/01_03.jpg",0);
	Mat edge;
	int edgeThresh=1;
	int pcount=0;
	blur(m_FaceImg, edge, Size(3,3));
	Canny(edge, edge, edgeThresh, edgeThresh*3, 3);
	imshow("edge",edge);
	waitKey(0);