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RGBPrime2LuvFunctor< T > Class Template Reference

Convert non-linear (gamma corrected) R'G'B' into perceptual uniform CIE L*u*v*. More...

#include <vigra/colorconversions.hxx>

Public Types

typedef TinyVector< T, 3 > argument_type
 
typedef NumericTraits< T >::RealPromote component_type
 
typedef XYZ2LuvFunctor< component_type >::result_type result_type
 
typedef XYZ2LuvFunctor< component_type >::result_type value_type
 

Public Member Functions

template<class V >
result_type operator() (V const &rgb) const
 
 RGBPrime2LuvFunctor ()
 
 RGBPrime2LuvFunctor (component_type max)
 

Detailed Description

template<class T>
class vigra::RGBPrime2LuvFunctor< T >

Convert non-linear (gamma corrected) R'G'B' into perceptual uniform CIE L*u*v*.

#include <vigra/colorconversions.hxx>
Namespace: vigra

The functor realizes the transformation

\[
    R'G'B' \Rightarrow RGB \Rightarrow XYZ \Rightarrow L^*u^*v^*
\]

See vigra::RGBPrime2RGBFunctor, vigra::RGB2XYZFunctor and vigra::XYZ2LuvFunctor for a description of the three steps. The resulting color components will have the following bounds:

\[
    \begin{array}{rcl}
    0 \leq & L^* & \leq 100 \\
    -83.077 \leq & u^* & \leq 175.015 \\
    -134.101 \leq & v^* & \leq 107.393
    \end{array}
\]

Traits defined:

FunctorTraits::isUnaryFunctor is true (VigraTrueType)

Member Typedef Documentation

◆ component_type

template<class T >
typedef NumericTraits<T>::RealPromote component_type

the result's component type

◆ argument_type

template<class T >
typedef TinyVector<T, 3> argument_type

the functor's argument type

◆ result_type

the functor's result type

◆ value_type

Deprecated:
use argument_type and result_type

Constructor & Destructor Documentation

◆ RGBPrime2LuvFunctor() [1/2]

template<class T >
RGBPrime2LuvFunctor ( )

default constructor. The maximum value for each RGB component defaults to 255.

◆ RGBPrime2LuvFunctor() [2/2]

template<class T >
RGBPrime2LuvFunctor ( component_type  max)

constructor

  • max - the maximum value for each RGB component

Member Function Documentation

◆ operator()()

template<class T >
template<class V >
result_type operator() ( V const rgb) const

apply the transformation


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

© Ullrich Köthe (ullrich.koethe@iwr.uni-heidelberg.de)
Heidelberg Collaboratory for Image Processing, University of Heidelberg, Germany

html generated using doxygen and Python
vigra 1.12.1