Openv2.1基本数据类型

1、Point_

template<typename _Tp> class Point_

{_Tp x, y;}

可使用的运算：

pt1 = pt2 + pt3;

pt1 = pt2 - pt3;

pt1 = pt2 * a;

pt1 = a * pt2;

pt1 += pt2;

pt1 -= pt2;

pt1 *= a;

double value = norm(pt); // L2 norm

pt1 == pt2;

pt1 != pt2;

预定义：

1 typedef Point_<int> Point2i;
2 typedef Point2i Point;
3 typedef Point_<float> Point2f;
4 typedef Point_<double> Point2d;

Point3_（3维点类）

2、Size_

1 _Tp width, height;
2 typedef Size_<int> Size2i;
3 typedef Size2i Size;
4 typedef Size_<float> Size2f;

3、Rect_

1 _Tp x, y, width, height;
2 typedef Rect_<int> Rect;

运算：

(平移)
(放缩)
rect = rect1 & rect2 (矩形交集)
rect = rect1 | rect2 (包含两矩形的最小区域 )
rect == rect1, rect != rect1 (比较)

4. RotatedRect

Point2f center; Size2f size; float angle;

5、Vec

 1 typedef Vec<uchar, 2> Vec2b;
 2 typedef Vec<uchar, 3> Vec3b;
 3 typedef Vec<uchar, 4> Vec4b;
 4  
 5 typedef Vec<short, 2> Vec2s;
 6 typedef Vec<short, 3> Vec3s;
 7 typedef Vec<short, 4> Vec4s;
 8  
 9 typedef Vec<int, 2> Vec2i;
10 typedef Vec<int, 3> Vec3i;
11 typedef Vec<int, 4> Vec4i;
12  
13 typedef Vec<float, 2> Vec2f;
14 typedef Vec<float, 3> Vec3f;
15 typedef Vec<float, 4> Vec4f;
16 typedef Vec<float, 6> Vec6f;
17  
18 typedef Vec<double, 2> Vec2d;
19 typedef Vec<double, 3> Vec3d;
20 
21 typedef Vec<double, 4> Vec4d;
22 typedef Vec<double, 6> Vec6d;

6、Scalar_

1 template<typename _Tp> class Scalar_ : public Vec<_Tp, 4>
2 {
3 Scalar_(_Tp v0, _Tp v1, _Tp v2=0, _Tp v3=0);
4     Scalar_(const CvScalar& s);
5     Scalar_(_Tp v0);
6     static Scalar_<_Tp> all(_Tp v0);
7 }
8 
9 typedef Scalar_<double> Scalar;

7、Range

 1 class Range
 2 {
 3 public:
 4     Range();
 5     Range(int _start, int _end);
 6     Range(const CvSlice& slice);
 7     int size() const;
 8     bool empty() const;
 9     static Range all();
10     operator CvSlice() const;
11 
12     int start, end;
13 };