73 lines
2.9 KiB
C++
73 lines
2.9 KiB
C++
/*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, 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
|
|
// 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 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
|
|
// 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.
|
|
//
|
|
//M*/
|
|
|
|
// This original code was written by
|
|
// Onkar Raut
|
|
// Graduate Student,
|
|
// University of North Carolina at Charlotte
|
|
|
|
#include "precomp.hpp"
|
|
|
|
void cv::polyfit(const Mat& src_x, const Mat& src_y, Mat& dst, int order)
|
|
{
|
|
CV_Assert((src_x.rows>0)&&(src_y.rows>0)&&(src_x.cols==1)&&(src_y.cols==1)
|
|
&&(dst.cols==1)&&(dst.rows==(order+1))&&(order>=1));
|
|
Mat X;
|
|
X = Mat::zeros(src_x.rows, order+1,CV_32FC1);
|
|
Mat copy;
|
|
for(int i = 0; i <=order;i++)
|
|
{
|
|
copy = src_x.clone();
|
|
pow(copy,i,copy);
|
|
Mat M1 = X.col(i);
|
|
copy.col(0).copyTo(M1);
|
|
}
|
|
Mat X_t, X_inv;
|
|
transpose(X,X_t);
|
|
Mat temp = X_t*X;
|
|
Mat temp2;
|
|
invert (temp,temp2);
|
|
Mat temp3 = temp2*X_t;
|
|
Mat W = temp3*src_y;
|
|
W.copyTo(dst);
|
|
}
|