vigra - RGB2LabFunctor< T > Class Template Reference

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| RGB2LabFunctor< T > Class Template Reference Color Space Conversions |

Convert linear (raw) RGB into perceptual uniform CIE L*a*b*. More...

`#include <vigra/colorconversions.hxx>`

## Public Types
typedef TinyVector< T, 3 > | argument_type
typedef NumericTraits< T > ::RealPromote | component_type
typedef XYZ2LabFunctor < component_type > ::result_type | result_type
typedef XYZ2LabFunctor < component_type > ::result_type | value_type

## Public Member Functions
template<class V >
result_type | operator() (V const &rgb) const
| RGB2LabFunctor ()
| RGB2LabFunctor (component_type max)

## Detailed Description

### template<class T>
class vigra::RGB2LabFunctor< T >

Convert linear (raw) RGB into perceptual uniform CIE L*a*b*.

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

The functor realizes the transformation

See vigra::RGB2XYZFunctor and vigra::XYZ2LabFunctor for a description of the two steps. The resulting color components will have the following bounds:

Traits defined:

`FunctorTraits::isUnaryFunctor` is true (`VigraTrueType`)

Examples:
  graph_agglomerative_clustering.cxx.

## Member Typedef Documentation

typedef NumericTraits<T>::RealPromote component_type

the result's component type

typedef TinyVector<T, 3> argument_type

the functor's argument type

typedef XYZ2LabFunctor<component_type>::result_type result_type

the functor's result type

typedef XYZ2LabFunctor<component_type>::result_type value_type

Deprecated:
  use argument_type and result_type

## Constructor & Destructor Documentation

RGB2LabFunctor | ( |  | ) |

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

RGB2LabFunctor | ( | component_type | max | ) |

constructor

- max - the maximum value for each RGB component

## Member Function Documentation

result_type operator() | ( | V const & | rgb | ) | const

apply the transformation

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

- vigra/colorconversions.hxx

© Ullrich Köthe (ullrich.koethe@iwr.uni-heidelberg.de) Heidelberg Collaboratory for Image Processing, University of Heidelberg, Germany | html generated using doxygen and Python vigra 1.11.0 (Thu Mar 17 2016)