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+/*
+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
+                       (3-clause BSD License)
+
+Copyright (C) 2000-2015, Intel Corporation, all rights reserved.
+Copyright (C) 2009-2011, Willow Garage Inc., all rights reserved.
+Copyright (C) 2009-2015, NVIDIA Corporation, all rights reserved.
+Copyright (C) 2010-2013, Advanced Micro Devices, Inc., all rights reserved.
+Copyright (C) 2015, OpenCV Foundation, all rights reserved.
+Copyright (C) 2015, Itseez 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:
+
+  * Redistributions of source code must retain the above copyright notice,
+    this list of conditions and the following disclaimer.
+
+  * Redistributions 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.
+
+  * Neither the names of the copyright holders nor the names of the contributors
+    may 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
+any express or implied warranties, including, but not limited to, the implied
+warranties of merchantability and fitness for a particular purpose are disclaimed.
+In no event shall copyright holders 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
+and on any theory of liability, whether in contract, strict liability,
+or tort (including negligence or otherwise) arising in any way out of
+the use of this software, even if advised of the possibility of such damage.
+*/
+
+#ifndef __OPENCV_BIF_HPP__
+#define __OPENCV_BIF_HPP__
+
+#include "opencv2/core.hpp"
+
+namespace cv {
+namespace face {
+
+/** Implementation of bio-inspired features (BIF) from the paper:
+ *  Guo, Guodong, et al. "Human age estimation using bio-inspired features."
+ *  Computer Vision and Pattern Recognition, 2009. CVPR 2009.
+ */
+class CV_EXPORTS_W BIF : public Algorithm {
+public:
+    /** @returns The number of filter bands used for computing BIF. */
+    CV_WRAP virtual int getNumBands() const = 0;
+
+    /** @returns The number of image rotations. */
+    CV_WRAP virtual int getNumRotations() const = 0;
+
+    /** Computes features sby input image.
+     *  @param image Input image (CV_32FC1).
+     *  @param features Feature vector (CV_32FC1).
+     */
+    CV_WRAP virtual void compute(InputArray image,
+                                 OutputArray features) const = 0;
+};
+
+/**
+ * @param num_bands The number of filter bands (<=8) used for computing BIF.
+ * @param num_rotations The number of image rotations for computing BIF.
+ * @returns Object for computing BIF.
+ */
+CV_EXPORTS_W cv::Ptr<BIF> createBIF(int num_bands = 8, int num_rotations = 12);
+
+}  // namespace cv
+}  // namespace face
+
+#endif  // #ifndef __OPENCV_FACEREC_HPP__