From 0732d0c2247c77d9c5a40c70985d5bfeb0533515 Mon Sep 17 00:00:00 2001
From: Julien Michel <julien.michel@c-s.fr>
Date: Fri, 7 Dec 2007 12:49:54 +0000
Subject: [PATCH] correction correlation
---
Code/ChangeDetection/otbCorrelationChangeDetector.h | 13 ++++++++-----
1 file changed, 8 insertions(+), 5 deletions(-)
diff --git a/Code/ChangeDetection/otbCorrelationChangeDetector.h b/Code/ChangeDetection/otbCorrelationChangeDetector.h
index a87c8f11d4..b9c71dac0f 100755
--- a/Code/ChangeDetection/otbCorrelationChangeDetector.h
+++ b/Code/ChangeDetection/otbCorrelationChangeDetector.h
@@ -89,14 +89,17 @@ public:
TOutput crossCorrel = 0.0;
- for(unsigned long pos = 0; pos< itA.Size(); ++pos)
- {
- if(varA!=0 && varB!=0)
+ if(varA!=0 && varB!=0)
{
- crossCorrel += (static_cast<TOutput>(itA.GetPixel(pos))-meanA)*(static_cast<TOutput>(itB.GetPixel(pos))-meanB)/(itA.Size()*vcl_sqrt(varA*varB));
+ for(unsigned long pos = 0; pos< itA.Size(); ++pos)
+ {
+ crossCorrel += (static_cast<TOutput>(itA.GetPixel(pos))-meanA)*(static_cast<TOutput>(itB.GetPixel(pos))-meanB)/(itA.Size()*vcl_sqrt(varA*varB));
+ }
}
+ else if(varA==0 && varB==0)
+ {
+ crossCorrel = 1;
}
-
return static_cast<TOutput>( 1.0-crossCorrel );
}
};
--
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