From 63c3361b16f8d6e3eb82bcdb99165674ec02bd62 Mon Sep 17 00:00:00 2001
From: Austin Blanton <imaus10@gmail.com>
Date: Mon, 29 Jul 2013 15:41:34 -0400
Subject: [PATCH] Propagate interest pts thru OF

---
 openbr/plugins/opticalflow.cpp | 2 ++
 1 file changed, 2 insertions(+), 0 deletions(-)

diff --git a/openbr/plugins/opticalflow.cpp b/openbr/plugins/opticalflow.cpp
index 4ff4b14..7f085f3 100644
--- a/openbr/plugins/opticalflow.cpp
+++ b/openbr/plugins/opticalflow.cpp
@@ -38,6 +38,8 @@ class OpticalFlowTransform : public UntrainableTransform
         Mat flow;
         calcOpticalFlowFarneback(prevImg, nextImg, flow, pyr_scale, levels, winsize, iterations, poly_n, poly_sigma, flags);
         dst += flow;
+        // propagate interest points thru
+        dst.file = src.file;
     }
 };
 
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