opencv 使用tic toc 来记录时间



static double t;
static void tic()
{
  t = (double)cvGetTickCount();
}
static void toc()
{
 t = ((double)cvGetTickCount() - t) / (cvGetTickFrequency() * 1000);
 std::cout << "运行时间: " << t << "ms" << std::endl;
 t = 0.0;
}

然后在程序中

开始计时 tic()

结束toc()