DeltaE_CAM02: Calculate the Color Difference in CAM02-UCS between Two...

In spacesXYZ: CIE XYZ and some of Its Derived Color Spaces

Calculate the Color Difference in CAM02-UCS between Two Colors

Description

Calculate Standard CIE Color Differences between two colors in uniform color space CAM02-UCS

Usage

DeltaE_CAM02( CAM_1, CAM_2 ) 

Arguments

CAM_1	a data.frame returned from CIECAM02fromXYZ(), with 1 or N rows.
CAM_2	a data.frame returned from CIECAM02fromXYZ(), with 1 or N rows.

These 2 data.frames must have an equal number of rows, *or* one of them can have a single row which is then replicated to match the number or rows in the other one. The \DeltaE is then computed between corresponding rows.

Value

DeltaE_CAM02() returns a numeric vector of length N, containing the computed \DeltaE in uniform color space CAM02-UCS, between corresponding rows of CAM_1 and CAM_2.

References

Fairchild, Mark D. CIECAM02. in Color Appearance Models (3rd ed.). pp. 287-302. John Wiley & Sons. 2013.

See Also

CIECAM02fromXYZ()

Examples

CAM = CIECAM02fromXYZ( c(19.01,20,21.78, 25,20,15), c(95.05,100,108.88), L_A=100 )
CAM
## XYZ.1 XYZ.2 XYZ.3         h        J        Q        C          M       Jp      abp.1      abp.2
## 19.01 20.00 21.78 211.58993 41.57911 153.4480  0.80776  0.7624239 54.74946 -0.2796279 -0.1719605
## 25.00 20.00 15.00  22.98284 43.12872 156.2812 33.08790 31.2308204 56.31674  9.4290922  3.9990801

DeltaE_CAM02( CAM[1, ], CAM[2, ] )

## [1] 10.68238

spacesXYZ documentation built on April 3, 2025, 7:19 p.m.