How to convert cv::Mat to std::string?

I would like to store cv::Mat in std::string and read it back. Is there an easy way to do this using OpenCV?

7

2792 ●13 ●25 ●52

Yes, OpenCV 2.4.1 adds such functionality, you can check ChangeLog for the sample code.

BTW, for debugging purposes you can use something like this:

cout << myMatrix << endl;

2

Michael Burdinov
4638 ●6 ●33 ●86

For creating string from Mat you should use iterators:

string matAsString (src.begin<unsigned char>(), src.end<unsigned char>());

This way you will get all the relevant content of src even if it is not continuous.

Comments

@Michael Burdinov Your method works for gray scale images, how can I use this for 3 channel BGR images?

abhijit ( 2018-03-31 02:50:12 -0600 )edit