[ VIGRA Homepage | Function Index | Class Index | Namespaces | File List | Main Page ]
|   | XYZ2RGBFunctor< T > Class Template Reference |  | 
Convert standardized tri-stimulus XYZ into linear (raw) RGB. More...
#include <vigra/colorconversions.hxx>
| Public Types | |
| typedef TinyVector< T, 3 > | argument_type | 
| typedef TinyVector< T, 3 > | result_type | 
| typedef TinyVector< T, 3 > | value_type | 
| Public Member Functions | |
| template<class V > | |
| result_type | operator() (V const &xyz) const | 
| XYZ2RGBFunctor () | |
| XYZ2RGBFunctor (component_type max) | |
Convert standardized tri-stimulus XYZ into linear (raw) RGB.
#include <vigra/colorconversions.hxx>
 Namespace: vigra
According to ITU-R Recommendation BT.709, the functor realizes the transformation
![\[ \begin{array}{rcl} R & = & R_{max} (3.2404813432\enspace X - 1.5371515163\enspace Y - 0.4985363262\enspace Z) \\ G & = & G_{max} (-0.9692549500\enspace X + 1.8759900015\enspace Y + 0.0415559266\enspace Z) \\ B & = & B_{max} (0.0556466391\enspace X - 0.2040413384\enspace Y + 1.0573110696\enspace Z) \end{array} \]](form_17.png) 
By default,  . This default can be overridden in the constructor. This is the inverse transform of vigra::RGB2XYZFunctor.
. This default can be overridden in the constructor. This is the inverse transform of vigra::RGB2XYZFunctor.
Traits defined:
FunctorTraits::isUnaryFunctor is true (VigraTrueType) 
| typedef TinyVector<T, 3> argument_type | 
the functor's argument type. (Actually, the argument type is more general: V with arbitrary V. But this cannot be expressed in a typedef.) 
| typedef TinyVector<T, 3> result_type | 
the functor's result type
| typedef TinyVector<T, 3> value_type | 
| XYZ2RGBFunctor | ( | ) | 
default constructor. The maximum value for each RGB component defaults to 255.
| XYZ2RGBFunctor | ( | component_type | max | ) | 
constructor
| result_type operator() | ( | V const & | xyz | ) | const | 
apply the transformation
| 
© Ullrich Köthe     (ullrich.koethe@iwr.uni-heidelberg.de)  | 
html generated using doxygen and Python
 |