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RGB2LabFunctor< T > Class Template Reference |  |
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
![\[ RGB \Rightarrow XYZ \Rightarrow L^*a^*b^* \]](form_31.png)
See vigra::RGB2XYZFunctor and vigra::XYZ2LabFunctor for a description of the two steps. The resulting color components will have the following bounds:
![\[ \begin{array}{rcl} 0 \leq & L^* & \leq 100 \\ -86.1813 \leq & u^* & \leq 98.2352 \\ -107.862 \leq & v^* & \leq 94.4758 \end{array} \]](form_32.png)
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