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details CatmullRomSpline Class Template Reference VIGRA

#include "vigra/splines.hxx"


Public Types

typedef T value_type
typedef T argument_type
typedef T result_type
enum  StaticOrder

Public Methods

result_type operator() (argument_type x) const
operator[] (T x) const
int radius () const
unsigned int derivativeOrder () const
ArrayVector< double > const & prefilterCoefficients () const


Detailed Description


template<class T = double>
class vigra::CatmullRomSpline< T >

Interpolating 3-rd order splines.

Implements the Catmull/Rom cardinal function

It can be used as a functor, and as a kernel for resamplingConvolveImage() to create a differentiable interpolant of an image. However, it should be noted that a twice differentiable interpolant can be created with only slightly more effort by recursive prefiltering followed by convolution with a 3rd order B-spline.

#include "vigra/splines.hxx"
Namespace: vigra


Member Typedef Documentation


typedef T argument_type

 

the unary functor's argument type


typedef T result_type

 

the unary functor's result type


typedef T value_type

 

the kernel's value type


Member Enumeration Documentation


enum StaticOrder

 

the splines polynomial order


Member Function Documentation


unsigned int derivativeOrder   const [inline]

 

Derivative order of the function: always 0.


T operator[]   x const [inline]

 

index operator--same as operator()


ArrayVector<double> const& prefilterCoefficients   const [inline]

 

Prefilter coefficients for compatibility with vigra::BSpline. (array has zero length, since prefiltering is not necessary).


int radius   const [inline]

 

Radius of the function's support. Needed for resamplingConvolveImage(), always 2.


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

© Ullrich Köthe (koethe@informatik.uni-hamburg.de)
Cognitive Systems Group, University of Hamburg, Germany

html generated using doxygen and Python
VIGRA 1.4.0 (21 Dec 2005)