按行合并

#include <opencv2/opencv.hpp>  
#include <iostream>   
using namespace cv;
using namespace std;Mat mergeRows(Mat A, Mat B)
{CV_ASSERT(A.cols == B.cols&&A.type() == B.type());int totalRows = A.rows + B.rows;Mat mergedDescriptors(totalRows, A.cols, A.type());Mat submat = mergedDescriptors.rowRange(0, A.rows);A.copyTo(submat);submat = mergedDescriptors.rowRange(A.rows, totalRows);B.copyTo(submat);return mergedDescriptors;
}int main()
{Mat B = (cv::Mat_<double>(1, 2) << 1,2);Mat C = (cv::Mat_<double>(2, 2) << 3, 2,3,2);Mat A = mergeRows(B,C);cout << "A:" << A << endl;
}

測試結(jié)果如圖1

按列合并：

#include <opencv2/opencv.hpp>   
#include <iostream>  
using namespace cv;
using namespace std;Mat mergeRows(Mat A, Mat B)
{assert(A.rows == B.rows&&A.type() == B.type());int totalCols = A.cols + B.cols;Mat mergedDescriptors(A.rows, totalCols, A.type());Mat submat = mergedDescriptors.colRange(0, A.cols);A.copyTo(submat);submat = mergedDescriptors.colRange(A.cols, totalCols);B.copyTo(submat);return mergedDescriptors;
}
int main()
{Mat B = (cv::Mat_<double>(2, 1) << 1,2);Mat C = (cv::Mat_<double>(2, 2) << 3, 2,3,2);Mat A = mergeRows(B,C);cout << "A:" << A << endl;
}

測試結(jié)果如圖2，

總結(jié)

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