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|   | RGB2sRGBFunctor< From, To > Class Template Reference |  | 
Convert linear (raw) RGB into standardized sRGB. More...
#include <vigra/colorconversions.hxx>
| Public Types | |
| typedef TinyVector< From, 3 > | argument_type | 
| typedef NumericTraits< To > ::RealPromote | component_type | 
| typedef TinyVector< To, 3 > | result_type | 
| typedef TinyVector< To, 3 > | value_type | 
| Public Member Functions | |
| template<class V > | |
| result_type | operator() (V const &rgb) const | 
| RGB2sRGBFunctor () | |
| RGB2sRGBFunctor (component_type max) | |
Convert linear (raw) RGB into standardized sRGB.
#include <vigra/colorconversions.hxx>
 Namespace: vigra
The sRGB color space is a slight improvement over the R'G'B' space. It is now a widely accepted international standard (IEC 61966-2.1) which is used by most consumer products (digital cameras, printers, and screens). The functor realizes the transformation
![\[ C_{sRGB} = \left\{ \begin{array}{ll} 12.92\,C_{RGB} & \textrm{ if }\frac{C_{RGB}}{C_{max}} \le 0.0031308 \\ C_{max}\left( 1.055 \left(\frac{C_{RGB}}{C_{max}}\right)^{1/2.4}-0.055\right) & \textrm{ otherwise} \end{array} \right. \]](form_10.png) 
where C is any of the primaries R, G, and B. By default,  (this default can be overridden in the constructor). If both source and target color components are stored as
 (this default can be overridden in the constructor). If both source and target color components are stored as unsigned char, a look-up-table will be used to speed up the transformation.
Traits defined:
FunctorTraits::isUnaryFunctor is true (VigraTrueType) 
| typedef TinyVector<From, 3> argument_type | 
the functor's argument type
| typedef TinyVector<To, 3> result_type | 
the functor's result type
| typedef TinyVector<To, 3> value_type | 
| typedef NumericTraits<To>::RealPromote component_type | 
the result component's promote type
| RGB2sRGBFunctor | ( | ) | 
Default constructor. The maximum value for each RGB component defaults to 255
| RGB2sRGBFunctor | ( | component_type | max | ) | 
constructor
| result_type operator() | ( | V const & | rgb | ) | const | 
apply the transformation
| 
© Ullrich Köthe     (ullrich.koethe@iwr.uni-heidelberg.de)  | 
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