1 files changed, 139 insertions, 0 deletions
diff --git a/src/plugins/lipi-toolkit/3rdparty/lipi-toolkit/src/reco/shaperec/featureextractor/substroke/SubStrokeShapeFeatureExtractor.h b/src/plugins/lipi-toolkit/3rdparty/lipi-toolkit/src/reco/shaperec/featureextractor/substroke/SubStrokeShapeFeatureExtractor.h
new file mode 100644
index 00000000..7d803727
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+++ b/src/plugins/lipi-toolkit/3rdparty/lipi-toolkit/src/reco/shaperec/featureextractor/substroke/SubStrokeShapeFeatureExtractor.h
@@ -0,0 +1,139 @@
+/*****************************************************************************************
+* 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:  $
+ * $Revision:  $
+ * $Author:  $
+ *
+ ************************************************************************/
+/************************************************************************
+ * FILE DESCR: Definitions for SubStroke feature extractor module
+ *
+ * CONTENTS:
+ *
+ * AUTHOR:     Tanmay Mondal
+ *
+ * DATE:       February 2009
+ * CHANGE HISTORY:
+ * Author      Date           Description of change
+ ************************************************************************/
+#ifndef __SUBSTROKESHAPEFEATUREEXTRACTOR_H
+#define __SUBSTROKESHAPEFEATUREEXTRACTOR_H
+
+#define SUPPORTED_MIN_VERSION "3.0.0"
+
+// delimiter of the slope of extracted substroke
+#define SUBSTROKES_ANGLE_DELIMITER -999.0
+
+#define SUBSTROKES_LENGTH_REJECT_THRESHOLD 0.001
+
+#define STROKE_SEGMENT_VALUE 0
+
+#define SINGLE_SUBSTROKES 1
+
+#define ANGLE_HIGHER_LIMIT_1  22.5
+
+#define ANGLE_HIGHER_LIMIT_2  67.5
+
+#define ANGLE_HIGHER_LIMIT_3  112.5
+
+#define ANGLE_HIGHER_LIMIT_4  157.5
+
+#define ANGLE_HIGHER_LIMIT_5  202.5
+
+#define ANGLE_HIGHER_LIMIT_6  247.5
+
+#define ANGLE_HIGHER_LIMIT_7  292.5
+
+#define ANGLE_HIGHER_LIMIT_8  337.5
+
+#define PI_DEGREE                  180.0
+
+#include "LTKShapeFeatureExtractor.h"
+
+class SubStrokeShapeFeatureExtractor : public LTKShapeFeatureExtractor
+{
+
+public:
+     /** @brief Constructor for the SubStroke feature extractor
+      * Gets the cfg file path from the contorInfo
+      * Reads the cfg variables and poputlates the member variables
+      * @param controlInfo: LTKControlInfo : The control information
+      * @return no return value as it is a constructor
+      */
+
+     SubStrokeShapeFeatureExtractor(const LTKControlInfo& controlInfo);
+
+    int extractFeatures(const LTKTraceGroup& inTraceGroup,
+                          vector<LTKShapeFeaturePtr>& outFeatureVec);
+
+    LTKShapeFeaturePtr getShapeFeatureInstance();
+
+private:
+
+     //store extracted sub-strokes
+     struct subStrokePoint
+     {
+          float X;  // x point
+          float Y;  // y point
+          bool penUp; // If point is penup then penUp = 1 else penUp =0
+     };
+
+     /** extract feature from sub strokes
+     */
+     int extractFeaturesFromSubStroke(const vector<struct subStrokePoint>& inSubStrokeVector,
+                                             vector<float>& outSlope,
+                                             vector<float>& outLength,
+                                             vector<float>& outCenterOfGravity);
+
+     /** extract the sub strokes from the preprocessed trace group
+     */
+     int extractSubStrokesFromInk(const LTKTraceGroup& inTraceGroup, vector<struct subStrokePoint>& outSubStrokeVector);
+
+     /** @brief claculate the angle
+     * inDeltaX,inDeltaY : float : the difference of x[i] and x[i+1] and difference of y[i] and y[i+1] of ink point
+     * float : the angle made with x axis and the point
+     */
+     int computeSlope(const float inDeltaX, const float inDeltaY, float& outSlope);
+
+     /** decide the octant of the point along the ink
+     * slope : float : value of the angle
+     * int : the octant code
+     */
+     int getDirectionCode(const float inSlope, int& outDirectionCode);
+
+     /** break the stroke into substrokes
+     * infirstSlope, insecondSlope : float : value of the slope
+     * int : SUCCESS : FAILURE
+     */
+     int canSegmentStrokes(const float inFirstSlope, const float inSecondSlope, bool& outSegment);
+
+     /** compute the slope of each point present in the tace
+     * inTrace : LTKTrace : value of a trace
+     * int : SUCCESS : FAILURE : errorcode
+     */
+     int getSlopeFromTrace(const LTKTrace& inTrace, vector<float>& outSlopeVector);
+
+};
+
+#endif //#ifndef __SUBSTROKESHAPEFEATUREEXTRACTOR_H