line_and_point_operations.h File Reference

Header functions for the line_and_point_operations.cpp. More...

#include <stdio.h>
#include <iostream>
#include <opencv2/core/core.hpp>
#include <opencv2/highgui/highgui.hpp>
#include <opencv2/imgproc/imgproc.hpp>

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Macros
#define	EPSILON   1E-5
	Maximum difference to consider two values equals. More...

Functions
bool	lineSegmentIntersection (const cv::Point2f &a1, const cv::Point2f &b1, const cv::Point2f &a2, const cv::Point2f &b2)
	Function that verify if two line segments have intersection point. More...
bool	lineSegmentIntersection (const cv::Point2f &a1, const cv::Point2f &b1, const cv::Point2f &a2, const cv::Point2f &b2, cv::Point2f &intersection)
	Function that calculate the homography matrix that leave the frame_i to the intermediate plan between the plans of frame_master_pre and frame_master_pre with relation of the distance between them. More...
void	computeAnglesAndMags (const std::vector< cv::Point2f > &points_src, const std::vector< cv::Point2f > &points_dst, std::vector< float > &angles, std::vector< float > &mags)
	Function that compute the angle and magnitude of the optical flow from the points_src to points_dst. More...

Detailed Description

Header functions for the line_and_point_operations.cpp.

Macro Definition Documentation

#define EPSILON   1E-5

Maximum difference to consider two values equals.

Function Documentation

void computeAnglesAndMags	(	const std::vector< cv::Point2f > &	points_src,
		const std::vector< cv::Point2f > &	points_dst,
		std::vector< float > &	angles,
		std::vector< float > &	mags
	)

Function that compute the angle and magnitude of the optical flow from the points_src to points_dst.

Parameters

points_src	- vector of source points.
points_dst	- vector of destination points.
angles	- object to save the angle of the vectors.
mags	- object to save the magnitude of the vectors.

Returns

void

Author

Washington Luis de Souza Ramos

Date

10/04/2016

bool lineSegmentIntersection	(	const cv::Point2f &	a1,
		const cv::Point2f &	b1,
		const cv::Point2f &	a2,
		const cv::Point2f &	b2
	)

Function that verify if two line segments have intersection point.

See also

https://github.com/Itseez/opencv/blob/master/modules/imgproc/src/min_enclosing_triangle.cpp

Parameters

a1	- first point of the first line segment.
b1	- second point of the first line segment.
a2	- first point of the second line segment.
b2	- second point of the second line segment.

Returns

bool true - if there is a intersection point.
bool false - if there is not a intersection point.

Author

Michel Melo da Silva

Date

04/04/2016

bool lineSegmentIntersection	(	const cv::Point2f &	a1,
		const cv::Point2f &	b1,
		const cv::Point2f &	a2,
		const cv::Point2f &	b2,
		cv::Point2f &	intersection
	)

Function that calculate the homography matrix that leave the frame_i to the intermediate plan between the plans of frame_master_pre and frame_master_pre with relation of the distance between them.

See also

https://github.com/Itseez/opencv/blob/master/modules/imgproc/src/min_enclosing_triangle.cpp

Parameters

a1	- first point of the first line segment.
b1	- second point of the first line segment.
a2	- first point of the second line segment.
b2	- second point of the second line segment.
intersection	- intersection point between the line segments.

Returns

bool true - if there is a intersection point.
bool false - if there is not a intersection point.

Author

Michel Melo da Silva

Date

04/04/2016