[opencv] 62/71: fixed random failures in Core_DFT.complex_output2 test (the case of input_mat.cols == 1)

[Nobuhiro Iwamatsu]

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iwamatsu pushed a commit to annotated tag 2.4.13.1
in repository opencv.

commit b8b7f155a5be52a0bb85a748fe69cac447928ccb
Author: Rostislav Vasilikhin <rostislav.vasilikhin at intel.com>
Date:   Mon Sep 5 22:33:31 2016 +0300

    fixed random failures in Core_DFT.complex_output2 test (the case of input_mat.cols == 1)
---
 modules/core/src/dxt.cpp | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/modules/core/src/dxt.cpp b/modules/core/src/dxt.cpp
index 79cb31c..90eb392 100644
--- a/modules/core/src/dxt.cpp
+++ b/modules/core/src/dxt.cpp
@@ -1070,11 +1070,12 @@ RealDFT( const T* src, T* dst, int n, int nf, int* factors, const int* itab,
         }
     }
 
-    if( complex_output && (n & 1) == 0 )
+    if (complex_output && ((n & 1) == 0 || n == 1))
     {
         dst[-1] = dst[0];
         dst[0] = 0;
-        dst[n] = 0;
+        if (n > 1)
+            dst[n] = 0;
     }
 }
 

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