73 lines
2.9 KiB
C++
73 lines
2.9 KiB
C++
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/*M///////////////////////////////////////////////////////////////////////////////////////
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//
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// IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
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//
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// By downloading, copying, installing or using the software you agree to this license.
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// If you do not agree to this license, do not download, install,
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// copy or use the software.
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//
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//
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// License Agreement
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// For Open Source Computer Vision Library
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//
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// Copyright (C) 2000-2008, Intel Corporation, all rights reserved.
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// Copyright (C) 2009, Willow Garage Inc., all rights reserved.
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// Third party copyrights are property of their respective owners.
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//
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// Redistribution and use in source and binary forms, with or without modification,
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// are permitted provided that the following conditions are met:
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//
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// * Redistribution's of source code must retain the above copyright notice,
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// this list of conditions and the following disclaimer.
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//
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// * Redistribution's in binary form must reproduce the above copyright notice,
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// this list of conditions and the following disclaimer in the documentation
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// and/or other materials provided with the distribution.
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//
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// * The name of the copyright holders may not be used to endorse or promote products
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// derived from this software without specific prior written permission.
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//
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// This software is provided by the copyright holders and contributors "as is" and
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// any express or implied warranties, including, but not limited to, the implied
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// warranties of merchantability and fitness for a particular purpose are disclaimed.
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// In no event shall the Intel Corporation or contributors be liable for any direct,
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// indirect, incidental, special, exemplary, or consequential damages
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// (including, but not limited to, procurement of substitute goods or services;
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// loss of use, data, or profits; or business interruption) however caused
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// and on any theory of liability, whether in contract, strict liability,
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// or tort (including negligence or otherwise) arising in any way out of
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// the use of this software, even if advised of the possibility of such damage.
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//
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//M*/
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// This original code was written by
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// Onkar Raut
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// Graduate Student,
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// University of North Carolina at Charlotte
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#include "precomp.hpp"
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void cv::polyfit(const Mat& src_x, const Mat& src_y, Mat& dst, int order)
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{
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CV_Assert((src_x.rows>0)&&(src_y.rows>0)&&(src_x.cols==1)&&(src_y.cols==1)
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&&(dst.cols==1)&&(dst.rows==(order+1))&&(order>=1));
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Mat X;
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X = Mat::zeros(src_x.rows, order+1,CV_32FC1);
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Mat copy;
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for(int i = 0; i <=order;i++)
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{
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copy = src_x.clone();
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pow(copy,i,copy);
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Mat M1 = X.col(i);
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copy.col(0).copyTo(M1);
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}
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Mat X_t, X_inv;
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transpose(X,X_t);
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Mat temp = X_t*X;
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Mat temp2;
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invert (temp,temp2);
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Mat temp3 = temp2*X_t;
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Mat W = temp3*src_y;
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W.copyTo(dst);
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}
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