Convert Mat to vector and Vector to mat in opencv

Question

i want to Convert Mat to vector and Vector to mat in opencv .

my code :

     void mat_to_vector(Mat in,vector &out){

        for          


        

Answer 1

This is how I do it. The first function is inspired by https://stackoverflow.com/a/26685567 . The output of VectorToMat is in CV _8U.

void MatToVector(const Mat& in, vector& out) 
// Convert a 1-channel Mat object to a vector. 
{
if (in.isContinuous()) { out.assign((float*)in.datastart, (float*)in.dataend); }
                else {   
                for (int i = 0; i < in.rows; ++i) 
                { out.insert(out.end(), in.ptr(i), in.ptr(i) + in.cols); }
                }     return;
}


void VectorToMat(const vector& in,  Mat& out)    
{
vector::const_iterator it = in.begin();
MatIterator_ jt, end;
jt = out.begin();
for (; it != in.end(); ++it) { *jt++ = (uchar)(*it * 255); } 
}