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diff --git a/source/blender/compositor/operations/COM_CalculateMeanOperation.h b/source/blender/compositor/operations/COM_CalculateMeanOperation.h
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+/*
+ * Copyright 2011, Blender Foundation.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * Contributor: 
+ *		Jeroen Bakker 
+ *		Monique Dewanchand
+ */
+
+#ifndef _COM_CalculateMeanOperation_h
+#define _COM_CalculateMeanOperation_h
+#include "COM_NodeOperation.h"
+#include "DNA_node_types.h"
+
+/**
+  * @brief base class of CalculateMean, implementing the simple CalculateMean
+  * @ingroup operation
+  */
+class CalculateMeanOperation : public NodeOperation {
+protected:
+	/**
+	  * @brief Cached reference to the reader
+	  */
+	SocketReader * imageReader;
+	
+	bool iscalculated;
+	float result;
+	int setting;
+
+public:
+	CalculateMeanOperation();
+	
+	/**
+	  * the inner loop of this program
+	  */
+	void executePixel(float* color, int x, int y, MemoryBuffer *inputBuffers[], void * data);
+	
+	/**
+	  * Initialize the execution
+	  */
+	void initExecution();
+	
+	void* initializeTileData(rcti *rect, MemoryBuffer **memoryBuffers);
+	
+	/**
+	  * Deinitialize the execution
+	  */
+	void deinitExecution();
+	
+	bool determineDependingAreaOfInterest(rcti *input, ReadBufferOperation *readOperation, rcti *output);
+	void setSetting(int setting) {this->setting = setting;}
+	
+protected:
+	void calculateMean(MemoryBuffer* tile);
+};
+#endif