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Function_2D Namespace Reference

Compounds
class	Base_2D
	Base class for the other functions. More...
class	Canny_Deriche
	Not normalized. More...
class	Direct_interface_2D
	Provides a direct interface to the class Base_2D. More...
class	FFT_normalized_gaussian
	FFT of a gaussian function normalized to 1. More...
class	Filter_interface_2D
	Extends Base_2D class to control scale with sigma values. More...
class	Gabor
	Gabor filter (normalized gaussian modulated by a sine: ). More...
class	Gaussian
	Very basic gaussian function . More...
class	Gaussian_step
	. More...
class	Gaussian_x_2nd_derivative
	. More...
class	Gaussian_x_derivative
	. More...
class	Gaussian_y_derivative
	. More...
class	Minus
class	Normalized_gaussian
	Gaussian function normalized to 1. More...
class	Normalized_gaussian_step
	Gaussian function normalized to 1 multiplied by . More...
class	Normalized_gaussian_x_2nd_derivative
	Second X-derivative of a gaussian function normalized to 1. More...
class	Normalized_gaussian_x_derivative
	X-derivative of a gaussian function normalized to 1. More...
class	Normalized_gaussian_y_derivative
	X-derivative of a gaussian function normalized to 1. More...
class	Riesz_1
	More...
class	Riesz_2
	More...
class	Shen_Castan
	More...
Typedefs
typedef double	real_type
typedef unsigned int	size_type
Functions
template<typename Function, typename Array> void	fill (const Function &f, Array *const array, const bool normalize_sum=false, const bool zero_in_the_middle=false)
template<typename Function> void	output_to_GNUPLOT (const char *file_name, const Function &f, const real_type x_begin=-16, const real_type x_end=16, const real_type x_step=1, const real_type y_begin=-16, const real_type y_end=16, const real_type y_step=1)

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Typedef Documentation

typedef double Function_2D::real_type

typedef unsigned int Function_2D::size_type

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Function Documentation

template<typename Function, typename Array> void Function_2D::fill (  const Function &    f, Array *const    array, const bool    normalize_sum = false, const bool    zero_in_the_middle = false )

Parameters: f  The function that provides the values to store in the array. array  The array that stores the function values. normalize_sum  If true, the sum of all the stored values is scaled to 1. zero_in_the_middle  If true, f(0,0) is stored at the array index (x_size/2,y_size/2). If false, indices over x_size/2 store negative values i.e. array(x_size-1,0) stores f(-1,0).

template<typename Function> void Function_2D::output_to_GNUPLOT (  const char *    file_name, const Function &    f, const real_type    x_begin = -16, const real_type    x_end = 16, const real_type    x_step = 1, const real_type    y_begin = -16, const real_type    y_end = 16, const real_type    y_step = 1 )

Creates a file that can be viewed with GNUPLOT using command : splot 'file.gnuplot'

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