fixed angles of SURF detector

13 years ago · 9cd0c9033f
parent 565a8dc30d
commit 9cd0c9033f
1 changed files with 1 additions and 1 deletions
--- a/modules/nonfree/src/surf.cpp
+++ b/modules/nonfree/src/surf.cpp
@ -667,7 +667,7 @@ struct SURFInvoker
                        besty = sumy;
                    }
                }
-                descriptor_dir = fastAtan2( besty, bestx );
+                descriptor_dir = fastAtan2( -besty, bestx );
            }
            kp.angle = descriptor_dir;
            if( !descriptors || !descriptors->data )