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Convert linear (raw) RGB into standardized tri-stimulus XYZ. More...
#include <vigra/colorconversions.hxx>
Public Types | |
typedef TinyVector< T, 3 > | argument_type |
typedef NumericTraits< T > ::RealPromote | component_type |
typedef TinyVector < component_type, 3 > | result_type |
typedef TinyVector < component_type, 3 > | value_type |
Public Member Functions | |
result_type | operator() (argument_type const &rgb) const |
RGB2XYZFunctor (component_type max) | |
RGB2XYZFunctor () |
Convert linear (raw) RGB into standardized tri-stimulus XYZ.
#include <vigra/colorconversions.hxx>
Namespace: vigra
According to ITU-R Recommendation BT.709, the functor realizes the transformation
By default, . This default can be overridden in the constructor. X, Y, and Z are always positive and reach their maximum for white. The white point is obtained by transforming RGB(255, 255, 255). It corresponds to the D65 illuminant. Y represents the luminance ("brightness") of the color.
Traits defined:
FunctorTraits::isUnaryFunctor
is true (VigraTrueType
)
typedef NumericTraits<T>::RealPromote component_type |
the result's component type
typedef TinyVector<T, 3> argument_type |
the functor's argument type
typedef TinyVector<component_type, 3> result_type |
the functor's result type
typedef TinyVector<component_type, 3> value_type |
RGB2XYZFunctor | ( | ) |
default constructor. The maximum value for each RGB component defaults to 255.
RGB2XYZFunctor | ( | component_type | max | ) |
constructor
result_type operator() | ( | argument_type const & | rgb | ) | const |
apply the transformation
© Ullrich Köthe (ullrich.koethe@iwr.uni-heidelberg.de) |
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