Class to manipulate a set of edge segments. More...

#include <line_segment_set.h>

Inheritance diagram for kjb::Edge_segment_set:

Public Member Functions
	Edge_segment_set ()

	Edge_segment_set (const std::vector< Edge_segment > &isegments)

	Edge_segment_set (const kjb::Edge_set *edge_set, const std::vector< Line_segment > &isegments)

	Edge_segment_set (const kjb::Edge_set *edge_set, bool use_num_pts_as_length=true)

	Edge_segment_set (const kjb::Edge_set edge_set, const char filename)

	Edge_segment_set (const kjb::Edge_set *edge_set, std::istream &in)

	Edge_segment_set (const Edge_segment_set &src)

Edge_segment_set &	operator= (const Edge_segment_set &iseg)

	~Edge_segment_set ()

void	init_from_edge_set (const kjb::Edge_set *edge_set, bool use_num_pts_as_length=true)

const std::vector< Edge_segment > &	get_segments ()

unsigned int	size () const

const Edge_segment &	get_segment (unsigned int i) const
	returns the ith fitted line segment More...

void	add_segment (const Edge_segment &isegment)
	Adds a line segment to this collection. More...

const kjb::Edge &	get_edge (unsigned int i)
	returns the ith collection of edge points the segments were fitted to More...

void	draw (kjb::Image &img, double ir, double ig, double ib, double width=1.0) const
	Draws this line segment set. More...

void	randomly_color (kjb::Image &img, double width=1.0) const
	Randomly colors this line segment set on an image. More...

void	read (std::istream &in, const kjb::Edge_set *edge_set)
	Reads this Edge_segment_set from an input stream. More...

void	read (const char filename, const kjb::Edge_set edge_set)
	Reads this Edge_segment_set from an input file. More...

void	read (std::istream &in)
	Reads this Edge_segment_set from an input stream. More...

void	read (const char *fname)
	Reads this Edge_segment_set from an input file. More...

void	write (std::ostream &out) const
	Writes this Edge_segment_set to an output stream. More...

void	write (const char *fname) const
	Writes this Edge_segment_set to a file. More...

void	remove_overlapping_segments (kjb::Edge_set &edges, double collinear_threshold=0.12, double overlapping_threshold=10)
	In case there are multiple roughly collinear edge segments, only the longest one is kept. This function is mostly for debug purposes. More...

void	remove_non_straight_segments (kjb::Edge_set &edges, double threshold)

void	remove_frame_segments (unsigned int num_rows, unsigned int num_cols, kjb::Edge_set &edges)

kjb::Edge_set *	convert_to_edge_set (unsigned int num_rows, unsigned int num_cols)

void	find_vertical_segment_pairs (std::vector< Segment_pair > &pairs, int num_rows) const

Public Member Functions inherited from kjb::Readable
virtual	~Readable ()
	Deletes this Readable. More...

Public Member Functions inherited from kjb::Writeable
virtual	~Writeable ()
	Deletes this Writeable. More...

Additional Inherited Members
Static Public Member Functions inherited from kjb::Readable
static const char *	read_field_value (std::istream &in, const char field_name, char field_buf, size_t buf_len, char separator=':')
	Reads a line off in into a buffer and returns a pointer to the field value in the buffer. More...

static const char *	read_field_value (std::istream &in, const char *field_name, char separator=':')
	Reads a line off in into an internal buffer and returns a pointer to the field value in the buffer. More...

Detailed Description

Class to manipulate a set of edge segments.

Constructor & Destructor Documentation

kjb::Edge_segment_set::Edge_segment_set ( )

inline

kjb::Edge_segment_set::Edge_segment_set ( const std::vector< Edge_segment > & isegments )

inline

Edge_segment_set::Edge_segment_set	(	const kjb::Edge_set *	edge_set,
		const std::vector< Line_segment > &	isegments
	)

Edge_segment_set::Edge_segment_set	(	const kjb::Edge_set *	edge_set,
		bool	use_num_pts_as_length = `true`
	)

Constructs a fitted_edge_segment_set from a set of detected edges

Parameters

edge_set the detected edges

Edge_segment_set::Edge_segment_set	(	const kjb::Edge_set *	edge_set,
		const char *	filename
	)

Constructs an edge segment set by reading it from an input stream. The input edge_set is necessary to bind the fitted segments to the original detected edges

Parameters

edge_set	set of edges fitted to the line segments to be read
filename	the input file to read this edge segment set from

Edge_segment_set::Edge_segment_set	(	const kjb::Edge_set *	edge_set,
		std::istream &	in
	)

Constructs an edge segment set by reading it from an input stream. The input edge_set is necessary to bind the fitted segments to the original detected edges

Parameters

edge_set	set of edges fitted to the line segments to be read
in	the input stream to read this edge segment set from

kjb::Edge_segment_set::Edge_segment_set ( const Edge_segment_set & src )

inline

kjb::Edge_segment_set::~Edge_segment_set ( )

inline

Member Function Documentation

void kjb::Edge_segment_set::add_segment ( const Edge_segment & isegment )

inline

Adds a line segment to this collection.

kjb::Edge_set * Edge_segment_set::convert_to_edge_set	(	unsigned int	num_rows,
		unsigned int	num_cols
	)

void Edge_segment_set::draw	(	kjb::Image &	img,
		double	ir,
		double	ig,
		double	ib,
		double	width = `1.0`
	)		const

Draws this line segment set.

Draws the line segment on an image

Parameters

img	the image
ir	the red channel
ig	the green channel
ib	the blue channel
width	the width of the segment to be drawn (in pixel)

void Edge_segment_set::find_vertical_segment_pairs	(	std::vector< Segment_pair > &	pairs,
		int	num_rows
	)		const

const kjb::Edge& kjb::Edge_segment_set::get_edge ( unsigned int i )

inline

returns the ith collection of edge points the segments were fitted to

const Edge_segment& kjb::Edge_segment_set::get_segment ( unsigned int i ) const

inline

returns the ith fitted line segment

const std::vector<Edge_segment>& kjb::Edge_segment_set::get_segments ( )

inline

Returns a vector containing the fitted line segments

void Edge_segment_set::init_from_edge_set	(	const kjb::Edge_set *	edge_set,
		bool	use_num_pts_as_length = `true`
	)

inline

Initialize this edge_segment_set from an edge_set. It fit an edge segment to each of the input edges in the input Edge_set

Parameters

edge_set the input Edge_set

Edge_segment_set& kjb::Edge_segment_set::operator= ( const Edge_segment_set & iseg )

inline

void Edge_segment_set::randomly_color	(	kjb::Image &	img,
		double	width = `1.0`
	)		const

Randomly colors this line segment set on an image.

Draws the line segment set using a different random color for each segment

Parameters

img	the image
width	the width of the segment to be drawn (in pixel)

void Edge_segment_set::read	(	std::istream &	in,
		const kjb::Edge_set *	edge_set
	)

Reads this Edge_segment_set from an input stream.

Read an edge segment set from an input stream. The input edge_set is necessary to bind the fitted segments to the original detected edges

Parameters

edge_set	set of edges fitted to the line segments to be read
in	the input stream to read this edge segment set from

void Edge_segment_set::read	(	const char *	filename,
		const kjb::Edge_set *	edge_set
	)

Reads this Edge_segment_set from an input file.

Read an edge segment set from an input file. The input edge_set is necessary to bind the fitted segments to the original detected edges

Parameters

edge_set	set of edges fitted to the line segments to be read
in	the input file to read this edge segment set from

void Edge_segment_set::read ( std::istream & in )

virtual

Reads this Edge_segment_set from an input stream.

Reads this Edge_segment_set from an input stream. Not implemented

Implements kjb::Readable.

void kjb::Edge_segment_set::read ( const char * fname )

inlinevirtual

Reads this Edge_segment_set from an input file.

Reimplemented from kjb::Readable.

void Edge_segment_set::remove_frame_segments	(	unsigned int	num_rows,
		unsigned int	num_cols,
		kjb::Edge_set &	edges
	)

In case there are multiple roughly collinear edge segments, only the longest one is kept. This function is mostly for debug purposes

Parameters

edges The edge_set this edge_segment_set was built from

void Edge_segment_set::remove_non_straight_segments	(	kjb::Edge_set &	edges,
		double	threshold
	)

void Edge_segment_set::remove_overlapping_segments	(	kjb::Edge_set &	edges,
		double	collinear_threshold = `0.12`,
		double	overlapping_threshold = `10`
	)

In case there are multiple roughly collinear edge segments, only the longest one is kept. This function is mostly for debug purposes.

In case there are multiple roughly collinear edge segments, only the longest one is kept. This function is mostly for debug purposes

Parameters

edges The edge_set this edge_segment_set was built from

unsigned int kjb::Edge_segment_set::size ( ) const

inline

Returns the number of segments in this set

void Edge_segment_set::write ( std::ostream & out ) const

virtual

Writes this Edge_segment_set to an output stream.

Implements kjb::Writeable.

void kjb::Edge_segment_set::write ( const char * fname ) const

inlinevirtual

Writes this Edge_segment_set to a file.

Reimplemented from kjb::Writeable.

The documentation for this class was generated from the following files:

/work/kobus/src/lib/edge_cpp/line_segment_set.h
/work/kobus/src/lib/edge_cpp/line_segment_set.cpp

Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation