homkermap.c File Reference

Homogeneous kernel map - Definition. More...

#include "homkermap.h"
#include "mathop.h"
#include <math.h>
#include "homkermap.c"
#include "float.th"

Include dependency graph for homkermap.c:

This graph shows which files directly or indirectly include this file:

Go to the source code of this file.

Classes
struct	_VlHomogeneousKernelMap
Defines
#define	FLT   VL_TYPE_FLOAT
#define	FLT   VL_TYPE_DOUBLE
#define	VL_HOMKERMAP_INSTANTIATING
#define	VL_HOMKERMAP_INSTANTIATING
Functions
VL_INLINE double	sinc (double x)
void	vl_homogeneouskernelmap_delete (VlHomogeneousKernelMap *self)
	Delete an object instance.
vl_size	vl_homogeneouskernelmap_get_dimension (VlHomogeneousKernelMap const *self)
	Get the map dimension.
VlHomogeneousKernelType	vl_homogeneouskernelmap_get_kernel_type (VlHomogeneousKernelMap const *self)
	Get the kernel type.
vl_size	vl_homogeneouskernelmap_get_order (VlHomogeneousKernelMap const *self)
	Get the map order.
VL_INLINE double	vl_homogeneouskernelmap_get_smooth_spectrum (VlHomogeneousKernelMap const *self, double omega)
VL_INLINE double	vl_homogeneouskernelmap_get_spectrum (VlHomogeneousKernelMap const *self, double omega)
VlHomogeneousKernelMapWindowType	vl_homogeneouskernelmap_get_window_type (VlHomogeneousKernelMap const *self)
	Get the window type.
VlHomogeneousKernelMap *	vl_homogeneouskernelmap_new (VlHomogeneousKernelType kernelType, double gamma, vl_size order, double period, VlHomogeneousKernelMapWindowType windowType)
	Create a new homgeneous kernel map.
	void (VlHomogeneousKernelMap const *self, T *destination, vl_size stride, double x)

---

Detailed Description

Homogeneous kernel map - Definition.

Author:

Andrea Vedaldi

Definition in file homkermap.c.

---

Define Documentation

#define FLT   VL_TYPE_FLOAT

Definition at line 518 of file homkermap.c.

#define FLT   VL_TYPE_DOUBLE

Definition at line 518 of file homkermap.c.

#define VL_HOMKERMAP_INSTANTIATING

Definition at line 519 of file homkermap.c.

#define VL_HOMKERMAP_INSTANTIATING

Definition at line 519 of file homkermap.c.

---

Function Documentation

VL_INLINE double sinc

(

double

x

)

Definition at line 258 of file homkermap.c.

void vl_homogeneouskernelmap_delete

(

VlHomogeneousKernelMap *

self

)

Delete an object instance.

Parameters:

self	object. The function deletes the specified map object.

Definition at line 435 of file homkermap.c.

vl_size vl_homogeneouskernelmap_get_dimension

(

VlHomogeneousKernelMap const *

self

)

Get the map dimension.

Parameters:

self

object.

Returns:

the map dimension (2 order +1).

Definition at line 464 of file homkermap.c.

VlHomogeneousKernelType vl_homogeneouskernelmap_get_kernel_type

(

VlHomogeneousKernelMap const *

self

)

Get the kernel type.

Parameters:

self

object.

Returns:

kernel type.

Definition at line 476 of file homkermap.c.

vl_size vl_homogeneouskernelmap_get_order

(

VlHomogeneousKernelMap const *

self

)

Get the map order.

Parameters:

self

object.

Returns:

the map order.

Definition at line 452 of file homkermap.c.

VL_INLINE double vl_homogeneouskernelmap_get_smooth_spectrum	(	VlHomogeneousKernelMap const *	self,
		double	omega
	)

Definition at line 271 of file homkermap.c.

VL_INLINE double vl_homogeneouskernelmap_get_spectrum	(	VlHomogeneousKernelMap const *	self,
		double	omega
	)

Definition at line 240 of file homkermap.c.

VlHomogeneousKernelMapWindowType vl_homogeneouskernelmap_get_window_type

(

VlHomogeneousKernelMap const *

self

)

Get the window type.

Parameters:

self

object.

Returns:

window type.

Definition at line 488 of file homkermap.c.

VlHomogeneousKernelMap* vl_homogeneouskernelmap_new	(	VlHomogeneousKernelType	kernelType,
		double	gamma,
		vl_size	order,
		double	period,
		VlHomogeneousKernelMapWindowType	windowType
	)

Create a new homgeneous kernel map.

Parameters:

kernelType	type of homogeneous kernel.
gamma	kernel homogeneity degree.
order	approximation order.
period	kernel period.
windowType	type of window used to truncate the kernel.

Returns:

the new homogeneous kernel map.

The function intializes a new homogeneous kernel map for the specified kernel type, homogeneity degree, approximation order, period, and truncation window. See Fundamentals for details.

The homogeneity degree gamma must be positive (the standard kernels are obtained by setting gamma to 1). When unsure, set windowType to VlHomogeneousKernelMapWindowRectangular. The period should be non-negative; specifying a negative or null value causes the function to switch to a default value.

The function returns NULL if there is not enough free memory.

Definition at line 326 of file homkermap.c.

void	(	VlHomogeneousKernelMap const *	self,
		T *	destination,
		vl_size	stride,
		double	x
	)

Definition at line 533 of file homkermap.c.