merged with r9002 (fix for SURF descriptor)

29f86df5 · Maria Dimashova · 9f4c5afb · 29f86df5
Commit 29f86df5 authored Jul 17, 2012 by Maria Dimashova
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surf.cpp modules/nonfree/src/surf.cpp +2 -2

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--- a/modules/nonfree/src/surf.cpp
+++ b/modules/nonfree/src/surf.cpp
@@ -681,8 +681,8 @@ struct SURFInvoker
            if( !upright )
            {
                descriptor_dir *= (float)(CV_PI/180);
-                float sin_dir = std::sin(descriptor_dir);
-                float cos_dir = std::cos(descriptor_dir);
+                float sin_dir = -std::sin(descriptor_dir);
+                float cos_dir =  std::cos(descriptor_dir);

                /* Subpixel interpolation version (slower). Subpixel not required since
                the pixels will all get averaged when we scale down to 20 pixels */