Hello there! I'm trying to do an image segmentation based on Mahalanobis distance, but the implementation in Visual Studio with OpenCV 2.4.8 throws a weird exception I don't know how to solve.
Here is the snippet:
// cam_frame is a Mat object, while pixel is a std::vector made of 3 elements.
// mn is a 1x3 Mat representing the mean vector, and i_covar has been successfully computed
for (int i=0; i<cam_frame.rows; i++){ //for every pixel,
for (int j=0; j<cam_frame.cols; j++)
{
pixel[0]=cam_frame.at<Vec3b>(i, j)[0]; //B component
pixel[1]=cam_frame.at<Vec3b>(i, j)[1]; //G component
pixel[2]=cam_frame.at<Vec3b>(i, j)[2]; //R component
if (Mahalanobis(mn, pixel, i_cvm)<threshold)
mask.at<unsigned char>(i,j)=255;
else mask.at<unsigned char>(i,j)=0;
}
}
The Mahalanobis function throws an exception regarding the size of the arguments, but I can't really figure out.
