colour.difference.delta_E_CAM02SCD¶
-
colour.difference.
delta_E_CAM02SCD
(Jpapbp_1, Jpapbp_2)[source]¶ Returns the difference \(\Delta E'\) between two given Luo et al. (2006) CAM02-SCD colourspaces \(J'a'b'\) arrays.
- Parameters
Jpapbp_1 (array_like) – Standard / reference Luo et al. (2006) CAM02-SCD colourspaces \(J'a'b'\) array.
Jpapbp_2 (array_like) – Sample / test Luo et al. (2006) CAM02-SCD colourspaces \(J'a'b'\) array.
- Returns
Colour difference \(\Delta E'\).
- Return type
numeric or ndarray
Warning
The \(J'a'b'\) array should have been computed with a Luo et al. (2006) CAM02-LCD, CAM02-SCD, or CAM02-UCS colourspace and not with the CIE L*a*b* colourspace.
Notes
Domain
Scale - Reference
Scale - 1
Jpapbp_1
Jp_1
: [0, 100]ap_1
: [-100, 100]bp_1
: [-100, 100]Jp_1
: [0, 1]ap_1
: [-1, 1]bp_1
: [-1, 1]Jpapbp_2
Jp_2
: [0, 100]ap_2
: [-100, 100]bp_2
: [-100, 100]Jp_2
: [0, 1]ap_2
: [-1, 1]bp_2
: [-1, 1]References
Examples
>>> Jpapbp_1 = np.array([54.90433134, -0.08450395, -0.06854831]) >>> Jpapbp_2 = np.array([54.80352754, -3.96940084, -13.57591013]) >>> delta_E_CAM02SCD(Jpapbp_1, Jpapbp_2) 14.0551718...