opencv学习---图像类型之间的转换

这里主要介绍   Mat,    vector<>,   Iplimage  之间的转换；

图像类

1. Mat<-----> Iplimage ：直接赋值

IplImage *iplImg = cvLoadImage("greatwave.jpg", 1);
Mat mtx(iplImg); // IplImage* ->Mat 共享数据
// or : Mat mtx = iplImg;

 Mat img;
 Iplimage myImg = img;

2. Iplimage  --->  CvvImage ：用“Copyof ”

 CvvImage cImg;
 Iplimage myimg;
 cImg.Copyof(myimg, -1);

数据类

3. Mat  ---> vector or vector ：用“Mat_“ ，“Mat_”

 Mat m;
 vector p;
 p = Mat_(m);

4. vector or vector  --->  vector> or vector> ：用“push_back”

 vector p1,p2,p3;
 vector> pp;
 pp.push_back(p1);
 pp.push_back(p2);
 pp.push_back(p3);

5. vector> (二维数组)or vector>(三维数组)  ---> Mat

 vector> p;
 Mat pm((int)p.size(), p[0].size(), CV_32FC3);

 for( int i = 0; i < (int)p.size(); i++ )
 {
     Mat r = pm.row(i).reshape(3, pm.cols);
     Mat pm1(p[i]);
     pm1.copyTo(r);
 }

6. vector or vector  --->  Mat ：用“Mat(Point3f)"

 vector p;
 Mat m = Mat(p);