Class ColorDifference`Abstract`

Color difference computation methods.

Index

Methods

deltaE2000 deltaE2000FromComponents deltaE76 deltaE76FromComponents deltaE94 deltaE94FromComponents deltaECmc deltaECmcFromComponents deltaEITP deltaEITPFromComponents

Methods

`Static`deltaE2000

deltaE2000(c1: Lab, c2: Lab): number
Compute the Delta-E with the CIEDE2000 version.
Parameters
- c1: Lab
  The first color.
- c2: Lab
  The second color.
Returns number
The color difference.
- Defined in functions/ColorDifference.ts:32

`Static`deltaE2000FromComponents

deltaE2000FromComponents(c1: number[], c2: number[]): number
Compute the Delta-E with the CIEDE2000 version. Please note that the comoponents must be in Lab color space.
Parameters
- c1: number[]
  The first color.
- c2: number[]
  The second color.
Returns number
The color difference.
- Defined in functions/ColorDifference.ts:47

`Static`deltaE76

deltaE76<C extends ICtCp | JzAzBz | Lab | Luv | Oklab>(c1: C, c2: C): number
Compute the Delta-E with the CIE76 version.
Type Parameters
- C extends ICtCp | JzAzBz | Lab | Luv | Oklab
Parameters
- c1: C
  The first color.
- c2: C
  The second color.
Returns number
The color difference.
- Defined in functions/ColorDifference.ts:181

`Static`deltaE76FromComponents

deltaE76FromComponents(comp1: number[], comp2: number[]): number
Compute the Delta-E with the CIE76 version. Please note that the components must be in an appropriate space: Lab, Oklab, Luv, JzAzBz, ICtCp. Also, they must be in the same space.
Parameters
- comp1: number[]
  The first color.
- comp2: number[]
  The second color.
Returns number
The color difference.
- Defined in functions/ColorDifference.ts:200

`Static`deltaE94

deltaE94(c1: Lab, c2: Lab, textiles?: boolean): number
Compute the Delta-E with the CIE94 version. Uses the 'Graphic Arts' constants by default (kL=1, K1=0.045, K2=0.015).
Parameters
- c1: Lab
  The first color (Lab).
- c2: Lab
  The second color (Lab).
- textiles: boolean = false
  If true, uses Textile constants (kL=2, K1=0.048, K2=0.014).
Returns number
The color difference.
- Defined in functions/ColorDifference.ts:222

`Static`deltaE94FromComponents

deltaE94FromComponents(c1: number[], c2: number[], textiles?: boolean): number
Compute the Delta-E with the CIE94 version from components.
Parameters
- c1: number[]
  L, a, b components.
- c2: number[]
  L, a, b components.
- textiles: boolean = false
  If true, uses Textile constants.
Returns number
- Defined in functions/ColorDifference.ts:237

`Static`deltaECmc

deltaECmc(c1: Lab, c2: Lab, l?: number, c?: number): number
Compute the CMC l:c (1984) Color Difference. Standard for textile industry.
Parameters
- c1: Lab
  The first color (Reference/Standard).
- c2: Lab
  The second color (Sample/Batch).
- l: number = 2
  Lightness weight (default 2 for textiles, 1 for perceptibility).
- c: number = 1
  Chroma weight (default 1).
Returns number
The difference.
- Defined in functions/ColorDifference.ts:296

`Static`deltaECmcFromComponents

deltaECmcFromComponents(
    c1: number[],
    c2: number[],
    l: number,
    c: number,
): number
Compute the CMC l:c (1984) Color Difference from components.
Parameters
- c1: number[]
  Reference Lab components.
- c2: number[]
  Sample Lab components.
- l: number
  Lightness weight.
- c: number
  Chroma weight.
Returns number
- Defined in functions/ColorDifference.ts:313

`Static`deltaEITP

deltaEITP(c1: ICtCp, c2: ICtCp): number
Compute the ITP color difference (ITU-R BT.2124). A value of 1.0 menas a Just Noticeable Difference (JND).
Parameters
- c1: ICtCp
  The first color.
- c2: ICtCp
  The second color.
Returns number
The difference.
- Defined in functions/ColorDifference.ts:386

`Static`deltaEITPFromComponents

deltaEITPFromComponents(c1: number[], c2: number[]): number
Compute the ITP color difference (ITU-R BT.2124). A value of 1.0 menas a Just Noticeable Difference (JND). Both components must be in ICtCp color space.
Parameters
- c1: number[]
  The first color.
- c2: number[]
  The second color.
Returns number
The difference.
- Defined in functions/ColorDifference.ts:402