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+/*M///////////////////////////////////////////////////////////////////////////////////////
+//
+//  IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
+//
+//  By downloading, copying, installing or using the software you agree to this license.
+//  If you do not agree to this license, do not download, install,
+//  copy or use the software.
+//
+//
+//                           License Agreement
+//                For Open Source Computer Vision Library
+//
+// Copyright (C) 2000-2008, Intel Corporation, all rights reserved.
+// Copyright (C) 2009-2011, Willow Garage Inc., all rights reserved.
+// Third party copyrights are property of their respective owners.
+//
+// Redistribution and use in source and binary forms, with or without modification,
+// are permitted provided that the following conditions are met:
+//
+//   * Redistribution's of source code must retain the above copyright notice,
+//     this list of conditions and the following disclaimer.
+//
+//   * Redistribution's in binary form must reproduce the above copyright notice,
+//     this list of conditions and the following disclaimer in the documentation
+//     and/or other materials provided with the distribution.
+//
+//   * The name of the copyright holders may not be used to endorse or promote products
+//     derived from this software without specific prior written permission.
+//
+// This software is provided by the copyright holders and contributors "as is" and
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+// In no event shall the Intel Corporation or contributors be liable for any direct,
+// indirect, incidental, special, exemplary, or consequential damages
+// (including, but not limited to, procurement of substitute goods or services;
+// loss of use, data, or profits; or business interruption) however caused
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+//
+//M*/
+
+#ifndef __OPENCV_DCT_IMAGE_DENOISING_HPP__
+#define __OPENCV_DCT_IMAGE_DENOISING_HPP__
+
+/** @file
+@date Jun 26, 2014
+@author Yury Gitman
+*/
+
+#include <opencv2/core.hpp>
+
+namespace cv
+{
+namespace xphoto
+{
+
+//! @addtogroup xphoto
+//! @{
+
+    /** @brief The function implements simple dct-based denoising
+
+    <http://www.ipol.im/pub/art/2011/ys-dct/>.
+    @param src source image
+    @param dst destination image
+    @param sigma expected noise standard deviation
+    @param psize size of block side where dct is computed
+
+    @sa
+       fastNlMeansDenoising
+     */
+    CV_EXPORTS_W void dctDenoising(const Mat &src, Mat &dst, const double sigma, const int psize = 16);
+
+//! @}
+
+}
+}
+
+#endif // __OPENCV_DCT_IMAGE_DENOISING_HPP__