CIEDE2000 Namespace Reference

Private header used by vtkColorTransferFunction to support LAB/CIEDE2000 interpolation. More...

Classes
struct	Node
	Node of the color path. More...

Functions
void	MapColor (double rgb[3])
	Map a RGB color to its corresponding color in the sampled RGB space.
double	GetCIEDeltaE2000 (const double lab1[3], const double lab2[3])
	Returns the distance between two colors as given by the CIE Delta E 2000 (CIEDE2000) color distance measure.
double	GetColorPath (const double rgb1[3], const double rgb2[3], std::vector< Node > &path, bool forceExactSupportColors)
	Calculates the shortest color path between two colors with respect to the CIEDE2000 measure and returns its overall length.

Detailed Description

Private header used by vtkColorTransferFunction to support LAB/CIEDE2000 interpolation.

Reference: "Color Interpolation for Non-Euclidean Color Spaces", Zeyen, M., Post, T., Hagen, H., Ahrens, J., Rogers, D. and Bujack, R., SciVis ShortPapers IEEE VIS 2018. (https://datascience.dsscale.org/wp-content/uploads/sites/3/2019/01/ColorInterpolationforNon-EuclideanColorSpaces.pdf)

The implementation is a modified version based on the following: https://github.com/gfiumara/CIEDE2000

Function Documentation

MapColor()

void CIEDE2000::MapColor

(

double

rgb[3]

)

Map a RGB color to its corresponding color in the sampled RGB space.

GetCIEDeltaE2000()

double CIEDE2000::GetCIEDeltaE2000	(	const double	lab1[3],
		const double	lab2[3]
	)

Returns the distance between two colors as given by the CIE Delta E 2000 (CIEDE2000) color distance measure.

GetColorPath()

double CIEDE2000::GetColorPath	(	const double	rgb1[3],
		const double	rgb2[3],
		std::vector< Node > &	path,
		bool	forceExactSupportColors
	)

Calculates the shortest color path between two colors with respect to the CIEDE2000 measure and returns its overall length.