如何使用boost XML归档序列化OpenCV Mat
我想序列化一个对象,它有一个cv :: Mat作为成员,我发现这个SO页面,但是当我尝试它时,我得到以下错误:
usr / include / boost / archive / basic_xml_iarchive.hpp:70:9:错误:没有匹配函数调用'assertion_failed(mpl _ :: failed ************ boost :: serialization :: is_wrapper :: ************)注意:template int mpl _ :: assertion_failed(typename mpl _ :: assert :: type)/usr/include/boost/archive/basic_xml_iarchive.hpp:在成员函数' void boost :: archive :: basic_xml_iarchive :: load_override(T&,int)[with T = unsigned char,Archive = boost :: archive :: xml_iarchive]':'
在链接页面的例子中,他们使用二进制存档,而我使用的是XML,这是否会导致问题?
需要在包含的头文件中添加这个地方:
namespace boost {
namespace serialization {
template<class Archive>
inline void serialize(Archive & ar, cv::Mat& m, const unsigned int version) {
int cols = m.cols;
int rows = m.rows;
size_t elemSize = m.elemSize();
size_t elemType = m.type();
ar & BOOST_SERIALIZATION_NVP(cols);
ar & BOOST_SERIALIZATION_NVP(rows);
ar & BOOST_SERIALIZATION_NVP(elemSize);
ar & BOOST_SERIALIZATION_NVP(elemType); // element type.
if(m.type() != elemType || m.rows != rows || m.cols != cols) {
m = cv::Mat(rows, cols, elemType, cv::Scalar(0));
}
size_t dataSize = cols * rows * elemSize;
cout << " datasize is " << dataSize;
for (size_t dc = 0; dc < dataSize; dc++) {
std::stringstream ss;
ss << "elem_"<<dc;
ar & boost::serialization::make_nvp(ss.str().c_str(), m.data[dc]);
}
}
}
}
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