cd bin
opencv_traincascade.exe -data ../cascade -vec ../pos/sample_pos.vec -bg sample_negative.dat -numPos 949 -numNeg 3000 -featureType HAAR -w 30 -h 30 -numStages 20 -mem 1024
pause
numPos+(numStages-1)*numPos*(1-minHitRate)<=vec文件中正样本的数目