enum { CV_8U=0, CV_8S=1, CV_16U=2, CV_16S=3, CV_32S=4, CV_32F=5, CV_64F=6 };
Point_ 二维点坐标(x,y)
typedef Point_<int> Point2i; typedef Point2i Point; typedef Point_<float> Point2f; typedef Point_<double> Point2d;
Point3_ 3维点坐标(x,y,z)
typedef Point3_<int> Point3i; typedef Point3_<float> Point3f; typedef Point3_<double> Point3d;
Size_ 尺寸(width, height)
typedef Size_<int> Size2i; typedef Size2i Size; typedef Size_<float> Size2f;
Rect_ 矩形区域(x,y,width,height) ,(x,y)左上角坐标, 范围[x, x + width), [y, y + height)
rect = rect ± point //矩形偏移(shifting a rectangle by a certain offset) rect = rect ± size //改变大小(expanding or shrinking a rectangle by a certain amount) rect += point, rect -= point, rect += size, rect -= size //(augmenting operations) rect = rect1 & rect2 //矩形交集(rectan