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diff --git a/src/plugins/lipi-toolkit/3rdparty/lipi-toolkit/src/reco/shaperec/featureextractor/common/LTKShapeFeatureExtractor.h b/src/plugins/lipi-toolkit/3rdparty/lipi-toolkit/src/reco/shaperec/featureextractor/common/LTKShapeFeatureExtractor.h
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+/*****************************************************************************************
+* Copyright (c) 2006 Hewlett-Packard Development Company, L.P.
+* Permission is hereby granted, free of charge, to any person obtaining a copy of 
+* this software and associated documentation files (the "Software"), to deal in 
+* the Software without restriction, including without limitation the rights to use, 
+* copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the 
+* Software, and to permit persons to whom the Software is furnished to do so, 
+* subject to the following conditions:
+*
+* The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, 
+* INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A 
+* PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT 
+* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
+* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE 
+* OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 
+*****************************************************************************************/
+
+/************************************************************************
+ * SVN MACROS
+ *
+ * $LastChangedDate: 2008-07-10 15:23:21 +0530 (Thu, 10 Jul 2008) $
+ * $Revision: 556 $
+ * $Author: sharmnid $
+ *
+ ************************************************************************/
+/************************************************************************
+ * FILE DESCR: Function prototype for feature extraction module
+ *
+ * CONTENTS:   
+ *
+ * AUTHOR:     Nidhi Sharma
+ *
+ * DATE:       07-FEB-2007
+ * CHANGE HISTORY:
+ * Author		Date			Description of change
+ ************************************************************************/
+
+#ifndef __LTKFEATUREEXTRACTOR_H
+#define __LTKFEATUREEXTRACTOR_H
+
+
+#include "LTKTypes.h"
+#include "LTKShapeFeatureMacros.h"
+
+// Forward class declarations
+class LTKTraceGroup;
+class LTKShapeFeature;
+
+/**
+* @ingroup feature_extractor
+* @brief An abstract class which is extended by all the feature extractors.
+* @class LTKShapeFeatureExtractor
+* 
+*/
+class LTKShapeFeatureExtractor
+{
+public:
+	/**
+	* <b>Responsibility</b><br>
+	* Extract features from the input TraceGroup passed a parameter.
+	*
+	* <b>Description</b>
+	* <p>
+	* Every feature representation class has a feature extractor associated with it. The feature extractor
+	* extracts the features from the trace group passed as parameter.
+	* </p>
+	*
+	* <p>This function is based on run-time polymorphism.
+	* The pointer to the derived class instances are stored in a vector of base class (<i>LTKShapeFeature</i>) pointers.
+	* </p>
+	*
+	* @return Pointer to the vector of LTKShapeFeature pointers.
+	*/
+	virtual int extractFeatures(const LTKTraceGroup& inTraceGroup,
+	                              vector<LTKShapeFeaturePtr>& outFeatureVec)=0;
+
+	/**
+	* <b>Responsibility</b><br>
+	* Returns the instance of the shape feature class associated with the feature extractor.
+	*
+	* @return Pointer to the shape feature class. 
+	*
+	*/
+	virtual LTKShapeFeaturePtr getShapeFeatureInstance()=0;
+
+
+	/**
+	* <b>Responsibility</b><br>
+	* Constructs traceGroup based on input LTKShapeFeaturePtr 
+	*
+	* @return Pointer to Trace Group. 
+	*
+	*/
+	virtual int convertFeatVecToTraceGroup(
+	                            const vector<LTKShapeFeaturePtr>& shapeFeature, 
+	                            LTKTraceGroup& outTraceGroup);
+};
+
+
+#endif