Get SVM classification score in multiclass classification with OpenCV

Question

I\'m working on a project where I\'m doing multiclass classification with SVM in OpenCV.

My goal is to get the confidence score of the classification as well as the

Answer 1

In opencv/include/opencv2/ml/ml.hpp, there is a struct called CvSVMDecisionFunc.. It has been used in line 546 as a Protected Variable,

CvSVMDecisionFunc* decision_func;

What you need to do is to cut that line and paste it as Public and then do a complete rebuild of OpenCV.. This variable, decision_func contains all the data for specific support vectors (ie, the alpha and rho values)..