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car detection use cascade classifier
when i tried to port this code into windows platfrom,i meet this problem.
In the official face detect code provide by opencv,they use this code to detect faces and return result use a reference faces
void detectAndDisplay(Mat frame)
{
std::vector<Rect> faces;
Mat frame_gray;
in my code ,when i call car_cascade.detectMultiScale ,it can work on linux, but when run in window ,it will crash .but if i use the face detect XML,this can work again.
this can solve by set the local variable faces into gobal variable
/** Global variables */
#ifdef _WIN32
std::vector<Rect> cars;
#endif
String car_cascade_name = "cascade.xml"; //the cascades file name
CascadeClassifier car_cascade;
String window_name = "Car detection";
but when the program return , it will crash.
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