Find troughs in image. More...

#include <vimt/vimt_image_2d_of.h>
#include <vgl/vgl_point_2d.h>

Functions
template<class T >
bool	vimt_is_trough_3x3 (const T *im, vcl_ptrdiff_t i_step, vcl_ptrdiff_t j_step)
	True if pixel at `*im` is strictly below its 8 neighbours.
template<class T >
void	vimt_find_image_troughs_3x3 (vcl_vector< vgl_point_2d< unsigned > > &troughs, const vil_image_view< T > &image, unsigned plane=0, bool clear_list=true)
	Return image co-ordinates of all points in image strictly below their 8 neighbours.
template<class T >
void	vimt_find_image_troughs_3x3 (vcl_vector< vgl_point_2d< unsigned > > &troughs, vcl_vector< T > &trough_value, const vil_image_view< T > &image, unsigned plane=0, bool clear_list=true)
	Return image co-ordinates of all points in image strictly below their 8 neighbours.
template<class T >
void	vimt_find_world_troughs_3x3 (vcl_vector< vgl_point_2d< double > > &troughs, const vimt_image_2d_of< T > &image, unsigned plane=0, bool clear_list=true)
	Return world co-ordinates of all points in image strictly below their 8 neighbours.
template<class T >
vgl_point_2d< unsigned >	vimt_find_min (const vil_image_view< T > &im, unsigned plane=0)
	Return image co-ordinates of minimum value in image.
template<class T >
vgl_point_2d< double >	vimt_find_min (const vimt_image_2d_of< T > &image, unsigned plane=0)
	Return world co-ordinates of minimum value in image.

Detailed Description

Find troughs in image.

Definition in file vimt_find_troughs.h.

Function Documentation

template<class T >

void vimt_find_image_troughs_3x3	(	vcl_vector< vgl_point_2d< unsigned > > &	troughs,
		const vil_image_view< T > &	image,
		unsigned	plane = `0`,
		bool	clear_list = `true`
	)		`[inline]`

Return image co-ordinates of all points in image strictly below their 8 neighbours.

Parameters:

clear_list,: If true (the default) then empty list before adding new examples

Definition at line 32 of file vimt_find_troughs.h.

template<class T >

void vimt_find_image_troughs_3x3	(	vcl_vector< vgl_point_2d< unsigned > > &	troughs,
		vcl_vector< T > &	trough_value,
		const vil_image_view< T > &	image,
		unsigned	plane = `0`,
		bool	clear_list = `true`
	)		`[inline]`

Return image co-ordinates of all points in image strictly below their 8 neighbours.

Parameters:

clear_list,: If true (the default) then empty list before adding new examples

Definition at line 52 of file vimt_find_troughs.h.

template<class T >

vgl_point_2d<unsigned> vimt_find_min	(	const vil_image_view< T > &	im,
		unsigned	plane = `0`
	)		`[inline]`

Return image co-ordinates of minimum value in image.

(Or first one found if multiple equivalent minima)

Definition at line 99 of file vimt_find_troughs.h.

template<class T >

vgl_point_2d<double> vimt_find_min	(	const vimt_image_2d_of< T > &	image,
		unsigned	plane = `0`
	)		`[inline]`

Return world co-ordinates of minimum value in image.

(Or first one found if multiple equivalent minima)

Definition at line 123 of file vimt_find_troughs.h.

template<class T >

void vimt_find_world_troughs_3x3	(	vcl_vector< vgl_point_2d< double > > &	troughs,
		const vimt_image_2d_of< T > &	image,
		unsigned	plane = `0`,
		bool	clear_list = `true`
	)		`[inline]`

Return world co-ordinates of all points in image strictly below their 8 neighbours.

Parameters:

clear_list,: If true (the default) then empty list before adding new examples

Definition at line 77 of file vimt_find_troughs.h.

template<class T >

True if pixel at *im is strictly below its 8 neighbours.

The image pixel (first argument) should not be a border pixel!

Definition at line 15 of file vimt_find_troughs.h.