我试图从浮动的3D矢量(vGraph1)填充OpenCV Mat(浮点)。但是,得到的OpenCV Mat(测试)未正确填充,即只有第一列填充了正确的值,而其余的是垃圾值(-4.32e + 08)。我通过将Mat写入文本文件来确认错误。难道我做错了什么? 好心劝告。 感谢。
int nStates = 9; const int rows = 10; const int cols = 10;
vector < vector < vector<float> > > vGraph1;
for(int iii = 0; iii < rows; iii++){
vGraph1.push_back(vector<vector<float> >());
for(int jjj = 0; jjj < cols; jjj++){
vGraph1[iii].push_back(vector<float>());
for(int kkk = 0; kkk < nStates; kkk++){
vGraph1[iii][jjj].push_back(rand());
cout << vGraph1[iii][jjj][kkk] << " ";
}
cout << endl;
}
}
cout << "OpenCV Mat \n" << endl;
Mat test(rows, cols, CV_MAKE_TYPE(CV_32F, nStates));
for(int iii = 0; iii < rows; iii++){
float *ptest = test.ptr<float>(iii);
for( int jjj = 0; jjj < cols; jjj++){
for (int kkk = 0; kkk < nStates; kkk++){
ptest[kkk] = vGraph1[iii][jjj][kkk];
cout << ptest[kkk] << " ";
}
cout << endl;
}
}
FileStorage Save("Mat.txt", FileStorage::WRITE);
Save << "Node" << test;
Save.release();
答案 0 :(得分:0)
我设法获得以下工作解决方案;我希望这是对的吗?
int nStates = 9; const int rows = 10; const int cols = 10;
vector < vector < vector<float> > > vGraph1;
for(int iii = 0; iii < rows; iii++){
vGraph1.push_back(vector<vector<float> >());
for(int jjj = 0; jjj < cols; jjj++){
vGraph1[iii].push_back(vector<float>());
for(int kkk = 0; kkk < nStates; kkk++){
vGraph1[iii][jjj].push_back(rand());
cout << vGraph1[iii][jjj][kkk] << " ";
}
cout << endl;
}
}
cout << "OpenCV Mat \n" << endl;
Mat test(rows, cols, CV_MAKE_TYPE(CV_32F, nStates));
for(int iii = 0; iii < rows; iii++){
float *ptest = test.ptr<float>(iii);
for( int jjj = 0; jjj < cols; jjj++){
for (int kkk = 0; kkk < nStates; kkk++){
ptest[nStates*jjj + kkk] = vGraph1[iii][jjj][kkk];
cout << ptest[nStates*jjj+kkk] << " ";
}
cout << endl;
}
}
FileStorage Save("Mat.txt", FileStorage::WRITE);
Save << "Node" << test;
Save.release();