mira::ImgPainter Namespace Reference

Functions
MIRA_BASE_EXPORT void	drawTransparentLine (cv::Mat &ioImg, const Point2i &a, const Point2i &b, const Color::RGB &color, double alpha=0.5f)
	Draws a line between the two given points using the specified color and the specified line thickness. More...
MIRA_BASE_EXPORT void	drawCovariance (cv::Mat &ioImg, const Point2i &p, float a, float b, float c, float sigma, const Color::RGB &color, int thickness=1)
	Draws a covariance ellipse into the specified image at position 'p'. More...
template<typename Derived >
void	drawCovariance (cv::Mat &ioImg, const Point2i &p, const Eigen::MatrixBase< Derived > &S, float sigma, const Color::RGB &color, int thickness=1)
	Same as above, where the covariance matrix is specified instead of its coefficients. More...
MIRA_BASE_EXPORT void	drawInvCovariance (cv::Mat &ioImg, const Point2i &p, float a, float b, float c, float sigma, const Color::RGB &color, int thickness=1)
	Draws a covariance ellipse into the specified image at position 'p'. More...
template<typename Derived >
void	drawInvCovariance (cv::Mat &ioImg, const Point2i &p, const Eigen::MatrixBase< Derived > &Sinv, float sigma, const Color::RGB &color, int thickness=1)
	Same as above, where the inverse covariance matrix is specified instead of its coefficients. More...

Function Documentation

drawTransparentLine()

MIRA_BASE_EXPORT void mira::ImgPainter::drawTransparentLine	(	cv::Mat &	ioImg,
		const Point2i &	a,
		const Point2i &	b,
		const Color::RGB &	color,
		double	alpha = 0.5f
	)

Draws a line between the two given points using the specified color and the specified line thickness.

drawCovariance() [1/2]

MIRA_BASE_EXPORT void mira::ImgPainter::drawCovariance	(	cv::Mat &	ioImg,
		const Point2i &	p,
		float	a,
		float	b,
		float	c,
		float	sigma,
		const Color::RGB &	color,
		int	thickness = 1
	)

Draws a covariance ellipse into the specified image at position 'p'.

The covariance matrix is represented by the 3 scalars a,b,c, which form the matrix as:

[a b]
[b c]

The specified sigma parameter controls the size of the ellipse.

drawCovariance() [2/2]

void mira::ImgPainter::drawCovariance ( cv::Mat &  ioImg, const Point2i &  p, const Eigen::MatrixBase< Derived > &  S, float  sigma, const Color::RGB &  color, int  thickness = 1  )

inline

Same as above, where the covariance matrix is specified instead of its coefficients.

Note: the lower diagonal matrix is used only.

drawInvCovariance() [1/2]

MIRA_BASE_EXPORT void mira::ImgPainter::drawInvCovariance	(	cv::Mat &	ioImg,
		const Point2i &	p,
		float	a,
		float	b,
		float	c,
		float	sigma,
		const Color::RGB &	color,
		int	thickness = 1
	)

Draws a covariance ellipse into the specified image at position 'p'.

The INVERSE covariance matrix is represented by the 3 scalars a,b,c, which form the matrix as:

[a b]
[b c]

The specified sigma parameter controls the size of the ellipse.

drawInvCovariance() [2/2]

void mira::ImgPainter::drawInvCovariance ( cv::Mat &  ioImg, const Point2i &  p, const Eigen::MatrixBase< Derived > &  Sinv, float  sigma, const Color::RGB &  color, int  thickness = 1  )

inline

Same as above, where the inverse covariance matrix is specified instead of its coefficients.

Note: the lower diagonal matrix is used only.