c++ OpenCV Turn a Mat into a 1 Dimensional Array

Question

I have this Mat:

Mat testDataMat(386, 2, CV_32FC1, testDataFloat);

Which takes in from:

float testDataFloat[386][2         


        

Answer 1

sample includes:

1. direct method to convert from float 2d array to float 1d array.
2. way to create a cv::Mat from 2D float array
3. way to create 1D float array from a 2D cv::Mat that has no padding (e.g. stepsize = size of a single row)

This one works for me:

int main()
{
    const int width = 2;
    const int height = 386;
    float testDataFloat[height][width];

    // create/initialize testdata
    for(unsigned int j=0; j