如何在 OpenCV 中编写向量?使用 HoughlinesP,线条是类型Vector<Vec4i>
并保存值 [x1,y1,x2,y2]。如何制作自己的矢量?我试过了
vector<Vec4i> line;
line[0] = [1,2,3,4];
并且它不适用于错误'expected an identifier。请指教,谢谢。
vector<Vec4i> line;
line.push_back(Vec4i(1,2,3,4));
line.push_back(Vec4i(5,6,7,8));
见dis: http: //opencv.willowgarage.com/documentation/cpp/basic_structures.html#vec。
typedef Vec<uchar, 2> Vec2b;
typedef Vec<uchar, 3> Vec3b;
typedef Vec<uchar, 4> Vec4b;
typedef Vec<short, 2> Vec2s;
typedef Vec<short, 3> Vec3s;
typedef Vec<short, 4> Vec4s;
typedef Vec<int, 2> Vec2i;
typedef Vec<int, 3> Vec3i;
typedef Vec<int, 4> Vec4i;
typedef Vec<float, 2> Vec2f;
typedef Vec<float, 3> Vec3f;
typedef Vec<float, 4> Vec4f;
typedef Vec<float, 6> Vec6f;
typedef Vec<double, 2> Vec2d;
typedef Vec<double, 3> Vec3d;
typedef Vec<double, 4> Vec4d;
typedef Vec<double, 6> Vec6d;
现在你知道了 !