opencv - how to convert cv:Mat to vector<float> descriptors? -


i met problem when communicating pales in tcp. received data processed in asn1 struct such :

mat ::= sequence {         numrows   integer,         numcols   integer,         data      bit string,         type      integer            }

i can construct matrix cv::mat. however, need query in format: vector descriptors. question how can convert mat vector?

i don't think, can avoid copy:

mat m(3,3,cv_32f); vector<float>v; v.insert(v.begin(),m.begin(),m.end());

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