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comparison c/cvutils.cpp @ 147:0089fb29cd26

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added projection of points and reprojection for display
author Nicolas Saunier <nicolas.saunier@polymtl.ca>
date Tue, 30 Aug 2011 13:38:31 -0400
parents b32947b002da
children 5eeb3b9fb568
comparison
equal deleted inserted replaced
146:7150427c665e 147:0089fb29cd26
9 #include <vector> 9 #include <vector>
10 10
11 using namespace std; 11 using namespace std;
12 using namespace cv; 12 using namespace cv;
13 13
14 cv::Mat loadMat(const string& filename, const string& separator) { 14 Point2f project(const Point2f& p, const Mat& homography) {
15 //Mat homogeneous(3, 1, CV_32FC1);
16 float x, y;
17 float w = homography.at<float>(2,0)*p.x+homography.at<float>(2,1)*p.y+homography.at<float>(2,2);
18 if (w != 0) {
19 x = (homography.at<float>(0,0)*p.x+homography.at<float>(0,1)*p.y+homography.at<float>(0,2))/w;
20 y = (homography.at<float>(1,0)*p.x+homography.at<float>(1,1)*p.y+homography.at<float>(1,2))/w;
21 } else {
22 x = 0;
23 y = 0;
24 }
25 return Point2f(x, y);
26 }
27
28 Mat loadMat(const string& filename, const string& separator) {
15 vector<vector<float> > numbers = ::loadNumbers(filename, separator); 29 vector<vector<float> > numbers = ::loadNumbers(filename, separator);
16 30
17 Mat mat; 31 Mat mat;
18 32
19 if (!numbers.empty()) { 33 if (!numbers.empty()) {