From 69f5d8c1d33099856efc58075f1cf7caea40e50c Mon Sep 17 00:00:00 2001
From: Vadim Pisarevsky <no@email>
Date: Mon, 26 Mar 2012 08:04:27 +0000
Subject: [PATCH] applied patch from #1712 (thanks to Vlad)

---
 modules/nonfree/src/surf.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/modules/nonfree/src/surf.cpp b/modules/nonfree/src/surf.cpp
index 617018cc6..66856a1d3 100644
--- a/modules/nonfree/src/surf.cpp
+++ b/modules/nonfree/src/surf.cpp
@@ -418,7 +418,7 @@ struct SURFFindInvoker
         for( int i=range.begin(); i<range.end(); i++ )
         {
             int layer = (*middleIndices)[i];
-            int octave = i % nOctaveLayers;
+            int octave = i / nOctaveLayers;
             findMaximaInLayer( *sum, *mask_sum, *dets, *traces, *sizes, 
                                *keypoints, octave, layer, hessianThreshold,
                                (*sampleSteps)[layer] );