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Open Source Computer Vision Library
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72 lines
2.9 KiB
72 lines
2.9 KiB
/*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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