Border handling for images. More...

#include <vcl_cassert.h>

Classes
class	vil_border< imT >
	Border class. Makes pixel access outside image range transparent and configurable. More...
class	vil_border_accessor< imT >
	Provides a pixel accessor which is syntax-compatible with vil_image_view. More...
Enumerations
enum	vil_border_mode { vil_border_constant = 0, vil_border_geodesic = 1, vil_border_reflect = 2, vil_border_periodic = 3 }
	Vil border modes. More...
Functions
template<class imT >
vil_border_accessor< imT >	vil_border_create_accessor (const imT &im, const vil_border< imT > &border)
	Instantiates a border accessor, provided for convenience.
template<class imT >
vil_border< imT >	vil_border_create_constant (const imT &, typename imT::pixel_type constant_val=0)
	Instantiate a constant border whose type is derived from imT.
template<class imT >
vil_border< imT >	vil_border_create_geodesic (const imT &)
	Instantiate a geodesic border whose type is derived from imT.
template<class imT >
vil_border< imT >	vil_border_create_reflect (const imT &)
	Instantiate a reflect border whose type is derived from imT.
template<class imT >
vil_border< imT >	vil_border_create_periodic (const imT &)
	Instantiate a reflect border whose type is derived from imT.

Detailed Description

Border handling for images.

Definition in file vil_border.h.

Enumeration Type Documentation

Vil border modes.

Enumerator:

vil_border_constant	Border pixels are constant.
vil_border_geodesic	Border pixels take the value of the closest image point. This ensures object continuity. ex: im(im.ni()+2, -1) == im(im.ni()-1, 0)
vil_border_reflect	Border pixels take the value of the image point which is its symmetric w.r.t. the closest image edge. ex: im(im.ni()+3, 0) = im(im.ni()-4, 0)
vil_border_periodic	The image is seen as periodic, after the right (respectively bottom) edge comes the left (respectively top). ex: im(im.ni()+2,0) == im(2,0) ex: im(im.ni()+3, im.nj()+2) == im(3,2)

Definition at line 16 of file vil_border.h.

template<class imT >

vil_border_accessor<imT> vil_border_create_accessor	(	const imT &	im,
		const vil_border< imT > &	border
	)

Instantiates a border accessor, provided for convenience.

Definition at line 146 of file vil_border.h.

template<class imT >

vil_border<imT> vil_border_create_constant	(	const imT &	,
		typename imT::pixel_type	constant_val = `0`
	)		`[inline]`

Instantiate a constant border whose type is derived from imT.

Definition at line 154 of file vil_border.h.

template<class imT >

vil_border<imT> vil_border_create_geodesic ( const imT & ) [inline]

Instantiate a geodesic border whose type is derived from imT.

Definition at line 165 of file vil_border.h.

template<class imT >

vil_border<imT> vil_border_create_periodic ( const imT & ) [inline]

Instantiate a reflect border whose type is derived from imT.

Definition at line 185 of file vil_border.h.

template<class imT >

vil_border<imT> vil_border_create_reflect ( const imT & ) [inline]

Instantiate a reflect border whose type is derived from imT.

Definition at line 175 of file vil_border.h.