Add backward compatibility code for OpenCV 2.4

diff --git a/src/kcf.cpp b/src/kcf.cpp
index 96bd4fee104bf35e9fb5bcadaf4cc5a4e51f4945..5aeb1612d047f4cfa502ccfa943ba8af6b2c46a7 100644 (file)
--- a/src/kcf.cpp
+++ b/src/kcf.cpp
@@ -34,6 +34,14 @@ void clamp2(T& n, const T& lower, const T& upper)
     n = std::max(lower, std::min(n, upper));
 }
 
+#if CV_VERSION_EPOCH < 3
+template<typename _Tp> static inline
+cv::Size_<_Tp> operator / (const cv::Size_<_Tp>& a, _Tp b)
+{
+    return cv::Size_<_Tp>(a.width / b, a.height / b);
+}
+#endif
+
 class Kcf_Tracker_Private {
     friend KCF_Tracker;
     std::vector<ThreadCtx> threadctxs;