I have read the article about the following three links
http://answers.opencv.org/question/42623/face-recognition-using-svm/
using OpenCV and SVM with images
http://www.codeproject.com/Articles/619039/Bag-of-Features-Descriptor-on-SIFT-Features-with-O
I have implemented the multi-class for SVM by openCV, but now, I want to implement multiple binary classification for SVM by openCV to solve multi-class problem. However, I have no idea about this. Can anyone teach me? Please. If it's possible, please provide me an example. Thank you.