add cross correlation (need assertions)

1 files changed, 32 insertions, 0 deletions

diff --git a/src/signalProcessing/crossCorr/zcrossCorra.c b/src/signalProcessing/crossCorr/zcrossCorra.c
new file mode 100644
index 00000000..49ac5a7a
--- /dev/null
+++ b/src/signalProcessing/crossCorr/zcrossCorra.c
@@ -0,0 +1,32 @@
+
+/*
+ *  Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
+ *  Copyright (C) 2008 - INRIA - Arnaud TORSET
+ *
+ *  This file must be used under the terms of the CeCILL.
+ *  This source file is licensed as described in the file COPYING, which
+ *  you should have received as part of this distribution.  The terms
+ *  are also available at
+ *  http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt
+ *
+ */
+
+
+#include "crossCorr.h"
+#include "conv2d.h"
+#include "conj.h"
+
+void zcrossCorra(doubleComplex* in1, int rows1, int cols1, doubleComplex* in2, int rows2, int cols2, doubleComplex* out){
+	doubleComplex *in2Copy;
+	int i;
+	
+	in2Copy=malloc((uint)(rows2*cols2)*sizeof(doubleComplex));
+	
+	/* We change in2 to be in appropriate form in in2Copy*/
+	for (i=0;i<(rows2*cols2);i++) in2Copy[i]=zconjs(in2[rows2*cols2-1-i]);
+	
+	zconv2da(in1, rows1, cols1, in2Copy, rows2, cols2, out);
+				
+}
+
+