Opencv的格式化输出风格

• 默认风格 C++

cout << r << endl;

[1,2,3,.....]

• python 风格 列表形式，一组通道，一个列表

cout << format(r,"pyhon")<< endl;

[[1,2,3],[1,2,3], ..                  ]

• 逗号分隔 comma separated values  csv

cout << format(r,"csv") << endl;

1,2,3,4,5,6 ...

• Numpy风格

cout << format(r,"Numpy") << endl;

• c 风格

cout << format(r，"C") << endl;

+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

• 二维点的额输出

Point2f  p(6,2);

cout << p << endl;

 [6,2];

• 三维点的输出

Point3f  p(6,2,1);
cout << p << endl;

[6,2,1]

• 输出Mat类的std::vector    列向量

vector<int> v;
v.push_back(3);
v.push_back(5);
cout << Mat(v )<< endl;

[3;

5]

vector 要用cout 输出 ，只能for 遍历？

• 输出2维 vector

vector<Point2f> v(20);
for(int i = 0 ;i < v.size();++i)
{
v[i] = Point2f(i,i);
cout << v[i] << endl;

}