hi, i use opencv cascade train like this: ./opencv_createsamples -vec righttoppointstraindata.vec -info info.dat 1. /home/opencv2461/bin/opencv_traincascade -data model -vec righttoppointstraindata.vec -bg bg.txt -numPos 100 -numNeg 400 -numStages 13 -w 30 -h 30 it runs but when after TRAINING 5-stage it runs very very slowly. and it run at the 6-stage for more than 2 hours,but has not finished the 6-stage,why?