我正在尝试使用以下代码设置相机参数,但它根本不起作用。
using namespace cv;
int main(int argc,char *argv[])
{
VideoCapture cap(0); // open the default camera
if(!cap.isOpened()) // check if we succeeded
return -1;
bool value = cap.set(CV_CAP_PROP_FRAME_WIDTH,10);
for(;;)
{
Mat frame;
cap >> frame; // get a new frame from camera
imshow("frame", frame);
unsigned char *dad = (unsigned char*)frame.data;
if(waitKey(30) >= 0) break;
}
// the camera will be deinitialized automatically in VideoCapture destructor
return 0;
}