I know how to load/save a cv::Mat
instance into a XML-file (See this question ).
But what I really need, is to parse a std::string
(or char *
) that contains the XML, and get the cv::Mat
. Say I get the XML out of a database, and not from a file.
Is that possible?
You can do it since OpenCV 2.4.1.
Here is a code sample from release notes :
//==== storing data ====
FileStorage fs(".xml", FileStorage::WRITE + FileStorage::MEMORY);
fs << "date" << date_string << "mymatrix" << mymatrix;
string buf = fs.releaseAndGetString();
//==== reading it back ====
FileStorage fs(buf, FileStorage::READ + FileStorage::MEMORY);
fs["date"] >> date_string;
fs["mymatrix"] >> mymatrix;
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