Update intersection.cpp

Added #ifdef _WIN32 for finite number testing

modules/imgproc/src/intersection.cpp

@@ -121,7 +121,11 @@ int rotatedRectangleIntersection( const RotatedRect& rect1, const RotatedRect& r
             float t2 = (vx1*y21 - vy1*x21) / det;
 
             // This takes care of parallel lines
+#ifdef _WIN32
+            if( !_finite(t1) || ! _finite(t2) )
+#else
             if( !std::isfinite(t1) || !std::isfinite(t2) )
+#endif            
             {
                 continue;
             }