How Can I Convert Vector Float Into Mat Image

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C++

OpenCV

i have afloat vector then i need to convert it into a mat image and use it in resize and imwrite function

how can i do this
i have a function but when running the code i have an error

the function:

memcpy(lbp.data,Vtrn.data(),Vtrn.size()*sizeof(float));
        resize(lbp, lbp, cvSize(50, 50)); //in order to make all image same size
        imwrite(In.vectorofotrainpath[i].c_str(),lbp);// true with mat image or not

the error i have is:

Windows has triggered a breakpoint in mycode.exe.

This may be due to a corruption of the heap, which indicates a bug in mycode.exe or any of the DLLs it has loaded.

This may also be due to the user pressing F12 while mycode.exe has focus.