Functions
template<class D >
Image< Color >	Merge (Vector< Image< D > > &img_vector)
	Static constructor of a color image, from an vector of monochromatic images. More...

template<class D >
Vector< Image< D > >	Split (const Image< Color > &img)
	Create a vector of (N-1)-D images from an N-D image. More...

template<class D >
Image< D >	Channel (const Image< Color > &img, size_t channel)
	Returns the the chosen channel from input image as a gray image. More...

template<class D >
Image< D >	Channel (const Image< RealColor > &img, size_t channel)

RealColor	ARGBtoAHSI (const Color &pxl)
	Converts a RGB format pixel to HSI format. More...

Color	AHSItoARGB (const RealColor &pxl)
	Converts a HSI format pixel to RGB format. More...

Image< RealColor >	ARGBtoAHSI (const Image< Color > &img)
	Converts a RGB format image to HSI format. More...

Image< Color >	AHSItoARGB (const Image< RealColor > &img)
	Converts a HSI format image to RGB format. More...

Image< RealColor >	ARGBtoXYZ (const Image< Color > &img)
	Converts a RGB image to XYZ colorspace. More...

Image< Color >	XYZtoARGB (const Image< RealColor > &img)
	Converts a XYZ image to RGB colorspace. More...

Image< RealColor >	ARGBtoCIELab (const Image< Color > &img)
	Converts a RGB image to CIELab colorspace. More...

Image< Color >	CIELabtoARGB (const Image< RealColor > &img)
	Converts a CIELab image to RGB colorspace. More...

Image< RealColor >	XYZtoCIELab (const Image< RealColor > &img)
	Converts a XYZ image to CIE-Lab colorspace. More...

Image< RealColor >	CIELabtoXYZ (const Image< RealColor > &img)
	Converts a CIE-Lab image to XYZ colorspace. More...

double	ARGB_XYZ (double color)
	Auxiliar function to convert between RGB and XYZ color representations. More...

double	XYZ_ARGB (double color)
	Auxiliar function to convert between XYZ and RGB color representations. More...

double	XYZ_CIELab (double color)
	Auxiliar function to convert between XYZ and CIELab color representations. More...

double	CIELab_XYZ (double color)
	Auxiliar function to convert between CIELab and XYZ color representations. More...

template<class D >
Image< Color >	GraytoARGB (const Image< D > &img)
	Converts gray image to ARGB format. Color channels receive the intensity. More...

template<class D >
Image< D >	ARGBtoGraybyLuminosity (const Image< Color > &img)
	Converts ARGB image to gray scale using luminosity. gray=( 0.21red + 0.72green + 0.07*blue )/2. More...

template<class D >
Image< D >	ARGBtoGraybyLightness (const Image< Color > &img)
	Converts ARGB image to gray scale using lightness. gray=(max(red,green,blue)+min(red,green,blue))/2. More...

template<class D >
Image< D >	ARGBtoGraybyBrightness (const Image< Color > &img)
	Converts ARGB image to gray scale using brightness. gray=(red+green+blue)/2. More...

Variables
constexpr double	XwRef = 95.047
	CIE X White Reference ( Obs.= 2°, Illuminant= D65 ) More...

constexpr double	YwRef = 100.000
	CIE Y White Reference ( Obs.= 2°, Illuminant= D65 ) More...

constexpr double	ZwRef = 108.883
	CIE Z White Reference ( Obs.= 2°, Illuminant= D65 ) More...

constexpr double	Epsilon = 0.008856
	Const. used in conversions between CIELAB and XYZ. More...

Function Documentation

Color Bial::ColorSpace::AHSItoARGB ( const RealColor & pxl )

Converts a HSI format pixel to RGB format.

Date: 2016/Jan/13

Parameters

pxl	HSI format pixel

Returns: RGB format pixel

Warning: none.

Image< Color > Bial::ColorSpace::AHSItoARGB ( const Image< RealColor > & img )

Converts a HSI format image to RGB format.

Date: 2016/Jan/13

Parameters

img	HSI format image

Returns: RGB format Image

Warning: none.

double Bial::ColorSpace::ARGB_XYZ ( double color )

Auxiliar function to convert between RGB and XYZ color representations.

Date: 2014/Apr/22

Parameters

color A color value.

Returns: Converted color value

Warning: none.

RealColor Bial::ColorSpace::ARGBtoAHSI ( const Color & pxl )

Converts a RGB format pixel to HSI format.

Date: 2016/Jan/13

Parameters

pxl	RGB format pixel

Returns: HSI format pixel

Warning: none.

Image< RealColor > Bial::ColorSpace::ARGBtoAHSI ( const Image< Color > & img )

Converts a RGB format image to HSI format.

Date: 2016/Jan/13

Parameters

img	RGB format image

Returns: HSI format Image

Warning: none.

Image< RealColor > Bial::ColorSpace::ARGBtoCIELab ( const Image< Color > & img )

Converts a RGB image to CIELab colorspace.

Date: 2016/Jan/13

Parameters

img	RGB color Image

Returns: Image

Warning: Images must have 3 dimensions, and the "color" ChannelType in 3rd dimension.
XYZ channel intensity range is approximately between 0 and 100.
Color conversion will be better in floating point images.

template<class D >

Image< D > Bial::ColorSpace::ARGBtoGraybyBrightness ( const Image< Color > & img )

Converts ARGB image to gray scale using brightness. gray=(red+green+blue)/2.

Date: 2013/Aug/06

Parameters

img	The input image.

Returns: Gray scale image

Warning: Only for 3-D colored.

template<class D >

Image< D > Bial::ColorSpace::ARGBtoGraybyLightness ( const Image< Color > & img )

Converts ARGB image to gray scale using lightness. gray=(max(red,green,blue)+min(red,green,blue))/2.

Date: 2013/Aug/06

Parameters

img	The input image.

Returns: Gray scale image

Warning: Only for 3-D colored.

template<class D >

Image< D > Bial::ColorSpace::ARGBtoGraybyLuminosity ( const Image< Color > & img )

Converts ARGB image to gray scale using luminosity. gray=( 0.21*red + 0.72*green + 0.07*blue )/2.

Date: 2013/Aug/06

Parameters

img	The input image.

Returns: Gray scale image

Warning: Only for 3-D colored.

Image< RealColor > Bial::ColorSpace::ARGBtoXYZ ( const Image< Color > & img )

Converts a RGB image to XYZ colorspace.

Date: 2013/Oct/29

Parameters

img	RGB color Image

Returns: Image

Warning: Images must have 3 dimensions, and the "color" ChannelType in 3rd dimension.
XYZ channel intensity range is approximately between 0 and 100.
Color conversion will be better in floating point images.

template<class D >

Image< D > Bial::ColorSpace::Channel	(	const Image< Color > &	img,
		size_t	channel
	)

Returns the the chosen channel from input image as a gray image.

Date: 2016/Jan/13

Parameters

img	A 3D or 4D image.
channel	A channel.

Returns: An image with the chosen channel from input image.

Warning: none.

template<class D >

Image< D > Bial::ColorSpace::Channel	(	const Image< RealColor > &	img,
		size_t	channel
	)

double Bial::ColorSpace::CIELab_XYZ ( double color )

Auxiliar function to convert between CIELab and XYZ color representations.

Date: 2014/Apr/22

Parameters

color A color value.

Returns: Converted color value

Warning: none.

Image< Color > Bial::ColorSpace::CIELabtoARGB ( const Image< RealColor > & img )

Converts a CIELab image to RGB colorspace.

Date: 2016/Jan/13

Parameters

img	XYZ color Image

Returns: Image

Warning: Images must have 3 dimensions, and the "color" ChannelType in 3rd dimension.
Resultant RGB image intensity range is between 0 and 25.
Color conversion will be better in floating point images.

Image< RealColor > Bial::ColorSpace::CIELabtoXYZ ( const Image< RealColor > & img )

Converts a CIE-Lab image to XYZ colorspace.

Date: 2013/Oct/30

Parameters

img	Lab color Image

Returns: Image

Warning: Images must have 3 dimensions, and the "color" ChannelType in 3rd dimension.
Color conversion will be better in floating point images.

template<class D >

Image< Color > Bial::ColorSpace::GraytoARGB ( const Image< D > & img )

Converts gray image to ARGB format. Color channels receive the intensity.

Date: 2013/Aug/06

Parameters

img	The input image.

Returns: An ARGB image.

Warning: none.

template<class D >

Image< Color > Bial::ColorSpace::Merge ( Vector< Image< D > > & img_vector )

Static constructor of a color image, from an vector of monochromatic images.

Date: 2014/Apr/11

Parameters

img_vector vector of images.

Returns: Resultant merged color image.

Warning: Images in vector must have the same dimension sizes.

template<class D >

Vector< Image< D > > Bial::ColorSpace::Split ( const Image< Color > & img )

Create a vector of (N-1)-D images from an N-D image.

Date: 2013/Oct/23

Parameters

img	A 3D or 4D image.

Returns: An image vector with split images in the last dimension.

Warning: none.

double Bial::ColorSpace::XYZ_ARGB ( double color )

Auxiliar function to convert between XYZ and RGB color representations.

Date: 2014/Apr/22

Parameters

color A color value.

Returns: Converted color value

Warning: none.

double Bial::ColorSpace::XYZ_CIELab ( double color )

Auxiliar function to convert between XYZ and CIELab color representations.

Date: 2014/Apr/22

Parameters

color A color value.

Returns: Converted color value

Warning: none.

Image< Color > Bial::ColorSpace::XYZtoARGB ( const Image< RealColor > & img )

Converts a XYZ image to RGB colorspace.

Date: 2013/Oct/30

Parameters

img	XYZ color Image

Returns: Image

Warning: Images must have 3 dimensions, and the "color" ChannelType in 3rd dimension.
Resultant RGB image intensity range is between 0 and 25.
Color conversion will be better in floating point images.

Image< RealColor > Bial::ColorSpace::XYZtoCIELab ( const Image< RealColor > & img )

Converts a XYZ image to CIE-Lab colorspace.

Date: 2013/Oct/30

Parameters

img	XYZ color Image

Returns: Image

Warning: Images must have 3 dimensions, and the "color" ChannelType in 3rd dimension.
Color conversion will be better in floating point images.

Variable Documentation

constexpr double Bial::ColorSpace::Epsilon = 0.008856

Const. used in conversions between CIELAB and XYZ.

Definition at line 39 of file ColorLab.hpp.

constexpr double Bial::ColorSpace::XwRef = 95.047

CIE X White Reference ( Obs.= 2°, Illuminant= D65 )

Definition at line 27 of file ColorLab.hpp.

constexpr double Bial::ColorSpace::YwRef = 100.000

CIE Y White Reference ( Obs.= 2°, Illuminant= D65 )

Definition at line 31 of file ColorLab.hpp.

constexpr double Bial::ColorSpace::ZwRef = 108.883

CIE Z White Reference ( Obs.= 2°, Illuminant= D65 )

Definition at line 35 of file ColorLab.hpp.

Functions

Variables

Function Documentation

Variable Documentation