Difference between revisions of "OpenCV/WishList/IO/WriteMatrix"
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// Write the matrix to a file | // Write the matrix to a file | ||
| − | cv::FileStorage fsout("test. | + | cv::FileStorage fsout("test.yml", cv::FileStorage::WRITE); |
fsout << "myMatrix" << myMatrix; | fsout << "myMatrix" << myMatrix; | ||
// Read the file back in to test that it was written correctly | // Read the file back in to test that it was written correctly | ||
cv::Mat myMatrix2(3,3,CV_32FC1); | cv::Mat myMatrix2(3,3,CV_32FC1); | ||
| − | cv::FileStorage fsin("test. | + | cv::FileStorage fsin("test.yml", cv::FileStorage::READ); |
fsin["myMatrix"] >> myMatrix2; | fsin["myMatrix"] >> myMatrix2; | ||
| Line 55: | Line 55: | ||
ADD_EXECUTABLE(WriteMatrix WriteMatrix.cxx) | ADD_EXECUTABLE(WriteMatrix WriteMatrix.cxx) | ||
| − | TARGET_LINK_LIBRARIES(WriteMatrix | + | TARGET_LINK_LIBRARIES(WriteMatrix ${OpenCV_LIBS}) |
| − | + | ||
| − | + | ||
| − | ) | + | |
</source> | </source> | ||
Latest revision as of 11:25, 20 September 2011
OpenCV Error: Parsing error (test.mat(0): Valid XML should start with '<?xml ...?>') in icvXMLParse, file /home/doriad/src/OpenCV/modules/core/src/persistence.cpp, line 2136 terminate called after throwing an instance of 'cv::Exception'
what(): /home/doriad/src/OpenCV/modules/core/src/persistence.cpp:2136: error: (-212) test.mat(0): Valid XML should start with '<?xml ...?>' in function icvXMLParse
WriteMatrix.cxx
#include "cv.h" #include "opencv2/highgui/highgui.hpp" #include "opencv2/core/core.hpp" #include <iostream> int main(int argc, char*argv[]) { // Create a matrix cv::Mat myMatrix(3,3,CV_32FC1); std::cout << "Input:" << std::endl; for(unsigned int i = 0; i < 3; i++) { for(unsigned int j = 0; j < 3; j++) { myMatrix.at<float>(i,j) = 2.1; } } std::cout << myMatrix << std::endl; // Write the matrix to a file cv::FileStorage fsout("test.yml", cv::FileStorage::WRITE); fsout << "myMatrix" << myMatrix; // Read the file back in to test that it was written correctly cv::Mat myMatrix2(3,3,CV_32FC1); cv::FileStorage fsin("test.yml", cv::FileStorage::READ); fsin["myMatrix"] >> myMatrix2; std::cout << myMatrix2 << std::endl; return 0; }
CMakeLists.txt
cmake_minimum_required(VERSION 2.6) PROJECT(WriteMatrix) FIND_PACKAGE(OpenCV REQUIRED ) INCLUDE_DIRECTORIES( ${OPENCV_INCLUDE_DIR} ) ADD_EXECUTABLE(WriteMatrix WriteMatrix.cxx) TARGET_LINK_LIBRARIES(WriteMatrix ${OpenCV_LIBS})
