Mercurial > hg > nsaunier > traffic-intelligence

comparison include/cvutils.hpp @ 804:17e54690af8a dev

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work in progress, not fully functional yet
author Nicolas Saunier <nicolas.saunier@polymtl.ca>
date Wed, 01 Jun 2016 17:57:49 -0400
parents b6ad86ee7033
children
comparison
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803:f7cf43b5ad3b 804:17e54690af8a
3 3
4 #include "opencv2/core/core.hpp" 4 #include "opencv2/core/core.hpp"
5 #include "opencv2/features2d/features2d.hpp" 5 #include "opencv2/features2d/features2d.hpp"
6 6
7 class CvCapture; 7 class CvCapture;
8 //template<typename T> class Point_<T>;
9
10 /// constant that indicates if the image should be flipped
11 //static const int flipImage = CV_CVTIMG_FLIP;
12 8
13 /** Projects a point with the homography matrix 9 /** Projects a point with the homography matrix
14 use perspectiveTransform for arrays of points. */ 10 use perspectiveTransform for arrays of points. */
15 cv::Point2f project(const cv::Point2f& p, const cv::Mat& homography); 11 //cv::Point2f project(const cv::Point2f& p, const cv::Mat& homography);
12 template<typename T>
13 inline cv::Point_<T> project(const cv::Point_<T>& p, const cv::Mat_<T>& homography) {
14 if (homography.empty())
15 return p;
16 else {
17 T x, y;
18 T w = homography.template at<T>(2,0)*p.x+homography.template at<T>(2,1)*p.y+homography.template at<T>(2,2);
19 if (w != 0.) {
20 x = (homography.template at<T>(0,0)*p.x+homography.template at<T>(0,1)*p.y+homography.template at<T>(0,2))/w;
21 y = (homography.template at<T>(1,0)*p.x+homography.template at<T>(1,1)*p.y+homography.template at<T>(1,2))/w;
22 } else {
23 x = 0.;
24 y = 0.;
25 }
26 return cv::Point_<T>(x, y);
27 }
28 }
16 29
17 /** Loads a cv mat from a text file where the numbers are saved line by line separated by separator */ 30 /** Loads a cv mat from a text file where the numbers are saved line by line separated by separator */
18 cv::Mat loadMat(const std::string& filename, const std::string& separator); 31 cv::Mat loadMat(const std::string& filename, const std::string& separator);
32
33 inline bool inImage(const cv::Point2f& p, const cv::Size s) { return (p.x >= 0) && (p.x <= s.width) && (p.y >= 0) && (p.y <= s.height); }
19 34
20 //template<typename T> 35 //template<typename T>
21 //float scalarProduct(const cv::Point_<T>& v1, const cv::Point_<T>& v2) { return v1.x*v2.x+v1.y*v2.y;} 36 //float scalarProduct(const cv::Point_<T>& v1, const cv::Point_<T>& v2) { return v1.x*v2.x+v1.y*v2.y;}
22 37
23 void keyPoints2Points(const std::vector<cv::KeyPoint>& kpts, std::vector<cv::Point2f>& pts, const bool& clearPts = true); 38 void keyPoints2Points(const std::vector<cv::KeyPoint>& kpts, std::vector<cv::Point2f>& pts, const bool& clearPts = true);
24
25 /** Allocates a new IplImage. */
26 // IplImage* allocateImage(const int& width, const int& height, const int& depth, const int& channels);
27
28 // IplImage* allocateImage(const CvSize& size, const int& depth, const int& channels);
29 39
30 /** Goes to the target frame number, by querying frame, 40 /** Goes to the target frame number, by querying frame,
31 supposing the video input is currently at current frame number. 41 supposing the video input is currently at current frame number.
32 Returns the frame number that was reached.*/ 42 Returns the frame number that was reached.*/
33 // int goToFrameNum(CvCapture* inputVideo, const int& currentFrameNum, const int& targetFrameNum); 43 // int goToFrameNum(CvCapture* inputVideo, const int& currentFrameNum, const int& targetFrameNum);