BaseLib::Color Class Reference

#include <Color.h>

Classes
class	HSV
	Class defining a HSV color. More...
class	NormalizedRGB
	Class defining a RGB color with intensity values for each color between 0 and 1. More...
class	RGB
	Class defining a RGB color with intensity values for each color between 0 and 255. More...

Public Member Functions
virtual	~Color ()
	Destructor. More...

Static Public Member Functions
static void	getConversionMatrix (const Math::Triangle &gamut, Math::Matrix3x3 &conversionMatrix, Math::Matrix3x3 &inversedConversionMatrix)
	Gets the RGB to XYZ and XYZ to RGB conversion matrix for the specified chromaticity coordinates of an RGB system with D65 as reference white. More...
static void	rgbToCie1931Xy (const NormalizedRGB &rgb, const Math::Matrix3x3 &conversionMatrix, const double &gamma, Math::Point2D &xy, double &brightness)
	Converts a RGB value to it's CIE 1931 color space chromaticity coordinates (x, y). More...
static void	cie1931XyToRgb (const Math::Point2D &xy, const double &brightness, const Math::Matrix3x3 &conversionMatrix, const double &gamma, NormalizedRGB &rgb)
	Converts CIE 1931 color space chromaticity coordinates (x, y) to RGB as reference white. More...

Protected Member Functions
	Color ()
	Constructor. More...

Constructor & Destructor Documentation

~Color()

BaseLib::Color::~Color ( )

virtual

Destructor.

Does nothing.

Color()

BaseLib::Color::Color ( )

protected

Constructor.

It is protected, because the class only contains static methods. It does nothing.

Member Function Documentation

cie1931XyToRgb()

void BaseLib::Color::cie1931XyToRgb ( const Math::Point2D &  xy, const double &  brightness, const Math::Matrix3x3 &  conversionMatrix, const double &  gamma, NormalizedRGB &  rgb  )

static

Converts CIE 1931 color space chromaticity coordinates (x, y) to RGB as reference white.

See also

iOS Philips hue SDK

Some Common RGB Working Space Matrices

RGB Working Space Information

Parameters

[in]	xy	Coordinate in CIE 1931 color space.
[in]	brightness	The brightness between 0 and 1.
[in]	conversionMatrix	The XYZ to RGB conversion matrix.
[in]	gamma	The gamma of the RGB color space.
[out]	rgb	The resulting normalized RGB intensities.

getConversionMatrix()

void BaseLib::Color::getConversionMatrix ( const Math::Triangle &  gamut, Math::Matrix3x3 &  conversionMatrix, Math::Matrix3x3 &  inversedConversionMatrix  )

static

Gets the RGB to XYZ and XYZ to RGB conversion matrix for the specified chromaticity coordinates of an RGB system with D65 as reference white.

See also

RGB/XYZ Matrices

A Review of RGB Color Spaces

Parameters

[in]	gamut	The chromaticity coordinates of an RGB system to get the conversion matrix for. First point is the coordinate for red, the second point for green and the third point for blue.
[out]	conversionMatrix	The RGB to XYZ conversion matrix.
[out]	inversedConversionMatrix	The XYZ to RGB conversion matrix.

rgbToCie1931Xy()

void BaseLib::Color::rgbToCie1931Xy ( const NormalizedRGB &  rgb, const Math::Matrix3x3 &  conversionMatrix, const double &  gamma, Math::Point2D &  xy, double &  brightness  )

static

Converts a RGB value to it's CIE 1931 color space chromaticity coordinates (x, y).

See also

iOS Philips hue SDK

Some Common RGB Working Space Matrices

RGB Working Space Information

Parameters

[in]	rgb	Normalized RGB intensities.
[in]	conversionMatrix	The RGB to XYZ conversion matrix.
[in]	gamma	The gamma of the RGB color space.
[out]	xy	Coordinate in CIE 1931 color space.
[out]	brightness	The brightness between 0 and 1.

---

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

• HelperFunctions/Color.h
• HelperFunctions/Color.cpp