//
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// Created by Scheaven on 2020/5/22.
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//
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#include "homography_util.h"
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cv::Point2f getTransPoint(const cv::Point2f rightPoint, cv::Mat homography)
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{
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float rightP[3][1], leftP[3][1];
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rightP[0][0] = rightPoint.x;
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rightP[1][0] = rightPoint.y;
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rightP[2][0] = 1.0;
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for(int i=0;i<3;++i){//矩阵c=a*b
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for(int j=0;j<1;++j)
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{
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leftP[i][j]=0;
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for(int k=0;k<3;++k)
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{
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leftP[i][j] += homography.at<double>(i,k)*rightP[k][j];
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}
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}
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}
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float x = leftP[0][0] / leftP[2][0];
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float y = leftP[1][0] / leftP[2][0];
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return cv::Point2f(x, y);
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}
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