colour.characterisation.dataset.colour_checkers.chromaticity_coordinates Module

ColourCheckers Chromaticity Coordinates

Defines ColourCheckers chromaticity coordinates in CIE xyY colourspace.

Each ColourChecker data is in the form of a list of 24 namedtuples as follows:

[('index', 'name', 'xyY'), ..., ('index', 'name', 'xyY')]

The following ColourCheckers data is available:

• BABELCOLOR_AVERAGE: Average data derived from measurements of 30 ColourChecker charts.
• COLORCHECKER_2005: Reference data from GretagMacbeth published in 2005.
• COLORCHECKER_1976: ColourChecker developed by McCamy et al. at Macbeth, a Division of Kollmorgen.

See also

Colour Fitting Jupyter Notebook

References

[1]	BabelColor. (2012). ColorChecker RGB and spectra. Retrieved from http://www.babelcolor.com/download/ColorChecker_RGB_and_spectra.xls

[2]	BabelColor. (2012). The ColorChecker (since 1976!). Retrieved September 26, 2014, from http://www.babelcolor.com/main_level/ColorChecker.htm

class colour.characterisation.dataset.colour_checkers.chromaticity_coordinates.ColourChecker_Specification(index, name, xyY)

Bases: tuple

Create new instance of ColourChecker_Specification(index, name, xyY)

index

Alias for field number 0

name

Alias for field number 1

xyY

Alias for field number 2

class colour.characterisation.dataset.colour_checkers.chromaticity_coordinates.ColourChecker(name, data, illuminant)

Bases: tuple

Create new instance of ColourChecker(name, data, illuminant)

data

Alias for field number 1

illuminant

Alias for field number 2

name

Alias for field number 0

colour.characterisation.dataset.colour_checkers.chromaticity_coordinates.BABELCOLOR_AVERAGE_ILLUMINANT = array([ 0.3457, 0.3585])

BabelColor Average illuminant.

BABELCOLOR_AVERAGE_ILLUMINANT : ndarray

colour.characterisation.dataset.colour_checkers.chromaticity_coordinates.BABELCOLOR_AVERAGE = [ColourChecker_Specification(index=1, name=u'dark skin', xyY=array([ 0.4325, 0.3788, 0.1034])), ColourChecker_Specification(index=2, name=u'light skin', xyY=array([ 0.4191, 0.3748, 0.3525])), ColourChecker_Specification(index=3, name=u'blue sky', xyY=array([ 0.2761, 0.3004, 0.1847])), ColourChecker_Specification(index=4, name=u'foliage', xyY=array([ 0.37 , 0.4501, 0.1335])), ColourChecker_Specification(index=5, name=u'blue flower', xyY=array([ 0.302 , 0.2877, 0.2324])), ColourChecker_Specification(index=6, name=u'bluish green', xyY=array([ 0.2856, 0.391 , 0.4174])), ColourChecker_Specification(index=7, name=u'orange', xyY=array([ 0.5291, 0.4075, 0.3117])), ColourChecker_Specification(index=8, name=u'purplish blue', xyY=array([ 0.2339, 0.2155, 0.114 ])), ColourChecker_Specification(index=9, name=u'moderate red', xyY=array([ 0.5008, 0.3293, 0.1979])), ColourChecker_Specification(index=10, name=u'purple', xyY=array([ 0.3326, 0.2556, 0.0644])), ColourChecker_Specification(index=11, name=u'yellow green', xyY=array([ 0.3989, 0.4998, 0.4435])), ColourChecker_Specification(index=12, name=u'orange yellow', xyY=array([ 0.4962, 0.4428, 0.4358])), ColourChecker_Specification(index=13, name=u'blue', xyY=array([ 0.204 , 0.1696, 0.0579])), ColourChecker_Specification(index=14, name=u'green', xyY=array([ 0.327 , 0.5033, 0.2307])), ColourChecker_Specification(index=15, name=u'red', xyY=array([ 0.5709, 0.3298, 0.1268])), ColourChecker_Specification(index=16, name=u'yellow', xyY=array([ 0.4694, 0.4732, 0.6081])), ColourChecker_Specification(index=17, name=u'magenta', xyY=array([ 0.4177, 0.2704, 0.2007])), ColourChecker_Specification(index=18, name=u'cyan', xyY=array([ 0.2151, 0.3037, 0.1903])), ColourChecker_Specification(index=19, name=u'white 9.5 (.05 D)', xyY=array([ 0.3488, 0.3628, 0.9129])), ColourChecker_Specification(index=20, name=u'neutral 8 (.23 D)', xyY=array([ 0.3451, 0.3596, 0.5885])), ColourChecker_Specification(index=21, name=u'neutral 6.5 (.44 D)', xyY=array([ 0.3446, 0.359 , 0.3595])), ColourChecker_Specification(index=22, name=u'neutral 5 (.70 D)', xyY=array([ 0.3438, 0.3589, 0.1912])), ColourChecker_Specification(index=23, name=u'neutral 3.5 (1.05 D)', xyY=array([ 0.3423, 0.3576, 0.0893])), ColourChecker_Specification(index=24, name=u'black 2 (1.5 D)', xyY=array([ 0.3439, 0.3565, 0.032 ]))]

Average data derived from measurements of 30 ColourChecker charts.

BABELCOLOR_AVERAGE : list

colour.characterisation.dataset.colour_checkers.chromaticity_coordinates.COLORCHECKER_2005_ILLUMINANT = array([ 0.3457, 0.3585])

ColorChecker 2005 illuminant.

COLORCHECKER_2005_ILLUMINANT : ndarray

colour.characterisation.dataset.colour_checkers.chromaticity_coordinates.COLORCHECKER_2005 = [ColourChecker_Specification(index=1, name=u'dark skin', xyY=array([ 0.4316, 0.3777, 0.1008])), ColourChecker_Specification(index=2, name=u'light skin', xyY=array([ 0.4197, 0.3744, 0.3495])), ColourChecker_Specification(index=3, name=u'blue sky', xyY=array([ 0.276 , 0.3016, 0.1836])), ColourChecker_Specification(index=4, name=u'foliage', xyY=array([ 0.3703, 0.4499, 0.1325])), ColourChecker_Specification(index=5, name=u'blue flower', xyY=array([ 0.2999, 0.2856, 0.2304])), ColourChecker_Specification(index=6, name=u'bluish green', xyY=array([ 0.2848, 0.3911, 0.4178])), ColourChecker_Specification(index=7, name=u'orange', xyY=array([ 0.5295, 0.4055, 0.3118])), ColourChecker_Specification(index=8, name=u'purplish blue', xyY=array([ 0.2305, 0.2106, 0.1126])), ColourChecker_Specification(index=9, name=u'moderate red', xyY=array([ 0.5012, 0.3273, 0.1938])), ColourChecker_Specification(index=10, name=u'purple', xyY=array([ 0.3319, 0.2482, 0.0637])), ColourChecker_Specification(index=11, name=u'yellow green', xyY=array([ 0.3984, 0.5008, 0.4446])), ColourChecker_Specification(index=12, name=u'orange yellow', xyY=array([ 0.4957, 0.4427, 0.4357])), ColourChecker_Specification(index=13, name=u'blue', xyY=array([ 0.2018, 0.1692, 0.0575])), ColourChecker_Specification(index=14, name=u'green', xyY=array([ 0.3253, 0.5032, 0.2318])), ColourChecker_Specification(index=15, name=u'red', xyY=array([ 0.5686, 0.3303, 0.1257])), ColourChecker_Specification(index=16, name=u'yellow', xyY=array([ 0.4697, 0.4734, 0.5981])), ColourChecker_Specification(index=17, name=u'magenta', xyY=array([ 0.4159, 0.2688, 0.2009])), ColourChecker_Specification(index=18, name=u'cyan', xyY=array([ 0.2131, 0.3023, 0.193 ])), ColourChecker_Specification(index=19, name=u'white 9.5 (.05 D)', xyY=array([ 0.3469, 0.3608, 0.9131])), ColourChecker_Specification(index=20, name=u'neutral 8 (.23 D)', xyY=array([ 0.344 , 0.3584, 0.5894])), ColourChecker_Specification(index=21, name=u'neutral 6.5 (.44 D)', xyY=array([ 0.3432, 0.3581, 0.3632])), ColourChecker_Specification(index=22, name=u'neutral 5 (.70 D)', xyY=array([ 0.3446, 0.3579, 0.1915])), ColourChecker_Specification(index=23, name=u'neutral 3.5 (1.05 D)', xyY=array([ 0.3401, 0.3548, 0.0883])), ColourChecker_Specification(index=24, name=u'black 2 (1.5 D)', xyY=array([ 0.3406, 0.3537, 0.0311]))]

Reference data from GretagMacbeth (2005).

COLORCHECKER_2005 : list

colour.characterisation.dataset.colour_checkers.chromaticity_coordinates.COLORCHECKER_1976_ILLUMINANT = array([ 0.31006, 0.31616])

ColorChecker 1976 illuminant.

COLORCHECKER_1976_ILLUMINANT : ndarray

colour.characterisation.dataset.colour_checkers.chromaticity_coordinates.COLORCHECKER_1976 = [ColourChecker_Specification(index=1, name=u'dark skin', xyY=array([ 0.4002, 0.3504, 0.1005])), ColourChecker_Specification(index=2, name=u'light skin', xyY=array([ 0.3773, 0.3446, 0.3582])), ColourChecker_Specification(index=3, name=u'blue sky', xyY=array([ 0.247 , 0.2514, 0.1933])), ColourChecker_Specification(index=4, name=u'foliage', xyY=array([ 0.3372, 0.422 , 0.1329])), ColourChecker_Specification(index=5, name=u'blue flower', xyY=array([ 0.2651, 0.24 , 0.2427])), ColourChecker_Specification(index=6, name=u'bluish green', xyY=array([ 0.2608, 0.343 , 0.4306])), ColourChecker_Specification(index=7, name=u'orange', xyY=array([ 0.506 , 0.407 , 0.3005])), ColourChecker_Specification(index=8, name=u'purplish blue', xyY=array([ 0.211, 0.175, 0.12 ])), ColourChecker_Specification(index=9, name=u'moderate red', xyY=array([ 0.4533, 0.3058, 0.1977])), ColourChecker_Specification(index=10, name=u'purple', xyY=array([ 0.2845, 0.202 , 0.0656])), ColourChecker_Specification(index=11, name=u'yellow green', xyY=array([ 0.38 , 0.4887, 0.4429])), ColourChecker_Specification(index=12, name=u'orange yellow', xyY=array([ 0.4729, 0.4375, 0.4306])), ColourChecker_Specification(index=13, name=u'blue', xyY=array([ 0.1866, 0.1285, 0.0611])), ColourChecker_Specification(index=14, name=u'green', xyY=array([ 0.3046, 0.4782, 0.2339])), ColourChecker_Specification(index=15, name=u'red', xyY=array([ 0.5385, 0.3129, 0.12 ])), ColourChecker_Specification(index=16, name=u'yellow', xyY=array([ 0.448 , 0.4703, 0.591 ])), ColourChecker_Specification(index=17, name=u'magenta', xyY=array([ 0.3635, 0.2325, 0.1977])), ColourChecker_Specification(index=18, name=u'cyan', xyY=array([ 0.1958, 0.2519, 0.1977])), ColourChecker_Specification(index=19, name=u'white 9.5 (.05 D)', xyY=array([ 0.3101, 0.3163, 0.9001])), ColourChecker_Specification(index=20, name=u'neutral 8 (.23 D)', xyY=array([ 0.3101, 0.3163, 0.591 ])), ColourChecker_Specification(index=21, name=u'neutral 6.5 (.44 D)', xyY=array([ 0.3101, 0.3163, 0.362 ])), ColourChecker_Specification(index=22, name=u'neutral 5 (.70 D)', xyY=array([ 0.3101, 0.3163, 0.1977])), ColourChecker_Specification(index=23, name=u'neutral 3.5 (1.05 D)', xyY=array([ 0.3101, 0.3163, 0.09 ])), ColourChecker_Specification(index=24, name=u'black 2 (1.5 D)', xyY=array([ 0.3101, 0.3163, 0.0313]))]

ColourChecker developed by McCamy et al. at Macbeth, a Division of Kollmorgen.

COLORCHECKER_1976 : list

colour.characterisation.dataset.colour_checkers.chromaticity_coordinates.COLOURCHECKERS = CaseInsensitiveMapping({u'ColorChecker 2005': ColourChecker(name=u'ColorChecker 2005', data=[ColourChecker_Specification(index=1, name=u'dark skin', xyY=array([ 0.4316, 0.3777, 0.1008])), ColourChecker_Specification(index=2, name=u'light skin', xyY=array([ 0.4197, 0.3744, 0.3495])), ColourChecker_Specification(index=3, name=u'blue sky', xyY=array([ 0.276 , 0.3016, 0.1836])), ColourChecker_Specification(index=4, name=u'foliage', xyY=array([ 0.3703, 0.4499, 0.1325])), ColourChecker_Specification(index=5, name=u'blue flower', xyY=array([ 0.2999, 0.2856, 0.2304])), ColourChecker_Specification(index=6, name=u'bluish green', xyY=array([ 0.2848, 0.3911, 0.4178])), ColourChecker_Specification(index=7, name=u'orange', xyY=array([ 0.5295, 0.4055, 0.3118])), ColourChecker_Specification(index=8, name=u'purplish blue', xyY=array([ 0.2305, 0.2106, 0.1126])), ColourChecker_Specification(index=9, name=u'moderate red', xyY=array([ 0.5012, 0.3273, 0.1938])), ColourChecker_Specification(index=10, name=u'purple', xyY=array([ 0.3319, 0.2482, 0.0637])), ColourChecker_Specification(index=11, name=u'yellow green', xyY=array([ 0.3984, 0.5008, 0.4446])), ColourChecker_Specification(index=12, name=u'orange yellow', xyY=array([ 0.4957, 0.4427, 0.4357])), ColourChecker_Specification(index=13, name=u'blue', xyY=array([ 0.2018, 0.1692, 0.0575])), ColourChecker_Specification(index=14, name=u'green', xyY=array([ 0.3253, 0.5032, 0.2318])), ColourChecker_Specification(index=15, name=u'red', xyY=array([ 0.5686, 0.3303, 0.1257])), ColourChecker_Specification(index=16, name=u'yellow', xyY=array([ 0.4697, 0.4734, 0.5981])), ColourChecker_Specification(index=17, name=u'magenta', xyY=array([ 0.4159, 0.2688, 0.2009])), ColourChecker_Specification(index=18, name=u'cyan', xyY=array([ 0.2131, 0.3023, 0.193 ])), ColourChecker_Specification(index=19, name=u'white 9.5 (.05 D)', xyY=array([ 0.3469, 0.3608, 0.9131])), ColourChecker_Specification(index=20, name=u'neutral 8 (.23 D)', xyY=array([ 0.344 , 0.3584, 0.5894])), ColourChecker_Specification(index=21, name=u'neutral 6.5 (.44 D)', xyY=array([ 0.3432, 0.3581, 0.3632])), ColourChecker_Specification(index=22, name=u'neutral 5 (.70 D)', xyY=array([ 0.3446, 0.3579, 0.1915])), ColourChecker_Specification(index=23, name=u'neutral 3.5 (1.05 D)', xyY=array([ 0.3401, 0.3548, 0.0883])), ColourChecker_Specification(index=24, name=u'black 2 (1.5 D)', xyY=array([ 0.3406, 0.3537, 0.0311]))], illuminant=array([ 0.3457, 0.3585])), u'babel_average': ColourChecker(name=u'BabelColor Average', data=[ColourChecker_Specification(index=1, name=u'dark skin', xyY=array([ 0.4325, 0.3788, 0.1034])), ColourChecker_Specification(index=2, name=u'light skin', xyY=array([ 0.4191, 0.3748, 0.3525])), ColourChecker_Specification(index=3, name=u'blue sky', xyY=array([ 0.2761, 0.3004, 0.1847])), ColourChecker_Specification(index=4, name=u'foliage', xyY=array([ 0.37 , 0.4501, 0.1335])), ColourChecker_Specification(index=5, name=u'blue flower', xyY=array([ 0.302 , 0.2877, 0.2324])), ColourChecker_Specification(index=6, name=u'bluish green', xyY=array([ 0.2856, 0.391 , 0.4174])), ColourChecker_Specification(index=7, name=u'orange', xyY=array([ 0.5291, 0.4075, 0.3117])), ColourChecker_Specification(index=8, name=u'purplish blue', xyY=array([ 0.2339, 0.2155, 0.114 ])), ColourChecker_Specification(index=9, name=u'moderate red', xyY=array([ 0.5008, 0.3293, 0.1979])), ColourChecker_Specification(index=10, name=u'purple', xyY=array([ 0.3326, 0.2556, 0.0644])), ColourChecker_Specification(index=11, name=u'yellow green', xyY=array([ 0.3989, 0.4998, 0.4435])), ColourChecker_Specification(index=12, name=u'orange yellow', xyY=array([ 0.4962, 0.4428, 0.4358])), ColourChecker_Specification(index=13, name=u'blue', xyY=array([ 0.204 , 0.1696, 0.0579])), ColourChecker_Specification(index=14, name=u'green', xyY=array([ 0.327 , 0.5033, 0.2307])), ColourChecker_Specification(index=15, name=u'red', xyY=array([ 0.5709, 0.3298, 0.1268])), ColourChecker_Specification(index=16, name=u'yellow', xyY=array([ 0.4694, 0.4732, 0.6081])), ColourChecker_Specification(index=17, name=u'magenta', xyY=array([ 0.4177, 0.2704, 0.2007])), ColourChecker_Specification(index=18, name=u'cyan', xyY=array([ 0.2151, 0.3037, 0.1903])), ColourChecker_Specification(index=19, name=u'white 9.5 (.05 D)', xyY=array([ 0.3488, 0.3628, 0.9129])), ColourChecker_Specification(index=20, name=u'neutral 8 (.23 D)', xyY=array([ 0.3451, 0.3596, 0.5885])), ColourChecker_Specification(index=21, name=u'neutral 6.5 (.44 D)', xyY=array([ 0.3446, 0.359 , 0.3595])), ColourChecker_Specification(index=22, name=u'neutral 5 (.70 D)', xyY=array([ 0.3438, 0.3589, 0.1912])), ColourChecker_Specification(index=23, name=u'neutral 3.5 (1.05 D)', xyY=array([ 0.3423, 0.3576, 0.0893])), ColourChecker_Specification(index=24, name=u'black 2 (1.5 D)', xyY=array([ 0.3439, 0.3565, 0.032 ]))], illuminant=array([ 0.3457, 0.3585])), u'ColorChecker 1976': ColourChecker(name=u'ColorChecker 1976', data=[ColourChecker_Specification(index=1, name=u'dark skin', xyY=array([ 0.4002, 0.3504, 0.1005])), ColourChecker_Specification(index=2, name=u'light skin', xyY=array([ 0.3773, 0.3446, 0.3582])), ColourChecker_Specification(index=3, name=u'blue sky', xyY=array([ 0.247 , 0.2514, 0.1933])), ColourChecker_Specification(index=4, name=u'foliage', xyY=array([ 0.3372, 0.422 , 0.1329])), ColourChecker_Specification(index=5, name=u'blue flower', xyY=array([ 0.2651, 0.24 , 0.2427])), ColourChecker_Specification(index=6, name=u'bluish green', xyY=array([ 0.2608, 0.343 , 0.4306])), ColourChecker_Specification(index=7, name=u'orange', xyY=array([ 0.506 , 0.407 , 0.3005])), ColourChecker_Specification(index=8, name=u'purplish blue', xyY=array([ 0.211, 0.175, 0.12 ])), ColourChecker_Specification(index=9, name=u'moderate red', xyY=array([ 0.4533, 0.3058, 0.1977])), ColourChecker_Specification(index=10, name=u'purple', xyY=array([ 0.2845, 0.202 , 0.0656])), ColourChecker_Specification(index=11, name=u'yellow green', xyY=array([ 0.38 , 0.4887, 0.4429])), ColourChecker_Specification(index=12, name=u'orange yellow', xyY=array([ 0.4729, 0.4375, 0.4306])), ColourChecker_Specification(index=13, name=u'blue', xyY=array([ 0.1866, 0.1285, 0.0611])), ColourChecker_Specification(index=14, name=u'green', xyY=array([ 0.3046, 0.4782, 0.2339])), ColourChecker_Specification(index=15, name=u'red', xyY=array([ 0.5385, 0.3129, 0.12 ])), ColourChecker_Specification(index=16, name=u'yellow', xyY=array([ 0.448 , 0.4703, 0.591 ])), ColourChecker_Specification(index=17, name=u'magenta', xyY=array([ 0.3635, 0.2325, 0.1977])), ColourChecker_Specification(index=18, name=u'cyan', xyY=array([ 0.1958, 0.2519, 0.1977])), ColourChecker_Specification(index=19, name=u'white 9.5 (.05 D)', xyY=array([ 0.3101, 0.3163, 0.9001])), ColourChecker_Specification(index=20, name=u'neutral 8 (.23 D)', xyY=array([ 0.3101, 0.3163, 0.591 ])), ColourChecker_Specification(index=21, name=u'neutral 6.5 (.44 D)', xyY=array([ 0.3101, 0.3163, 0.362 ])), ColourChecker_Specification(index=22, name=u'neutral 5 (.70 D)', xyY=array([ 0.3101, 0.3163, 0.1977])), ColourChecker_Specification(index=23, name=u'neutral 3.5 (1.05 D)', xyY=array([ 0.3101, 0.3163, 0.09 ])), ColourChecker_Specification(index=24, name=u'black 2 (1.5 D)', xyY=array([ 0.3101, 0.3163, 0.0313]))], illuminant=array([ 0.31006, 0.31616])), u'BabelColor Average': ColourChecker(name=u'BabelColor Average', data=[ColourChecker_Specification(index=1, name=u'dark skin', xyY=array([ 0.4325, 0.3788, 0.1034])), ColourChecker_Specification(index=2, name=u'light skin', xyY=array([ 0.4191, 0.3748, 0.3525])), ColourChecker_Specification(index=3, name=u'blue sky', xyY=array([ 0.2761, 0.3004, 0.1847])), ColourChecker_Specification(index=4, name=u'foliage', xyY=array([ 0.37 , 0.4501, 0.1335])), ColourChecker_Specification(index=5, name=u'blue flower', xyY=array([ 0.302 , 0.2877, 0.2324])), ColourChecker_Specification(index=6, name=u'bluish green', xyY=array([ 0.2856, 0.391 , 0.4174])), ColourChecker_Specification(index=7, name=u'orange', xyY=array([ 0.5291, 0.4075, 0.3117])), ColourChecker_Specification(index=8, name=u'purplish blue', xyY=array([ 0.2339, 0.2155, 0.114 ])), ColourChecker_Specification(index=9, name=u'moderate red', xyY=array([ 0.5008, 0.3293, 0.1979])), ColourChecker_Specification(index=10, name=u'purple', xyY=array([ 0.3326, 0.2556, 0.0644])), ColourChecker_Specification(index=11, name=u'yellow green', xyY=array([ 0.3989, 0.4998, 0.4435])), ColourChecker_Specification(index=12, name=u'orange yellow', xyY=array([ 0.4962, 0.4428, 0.4358])), ColourChecker_Specification(index=13, name=u'blue', xyY=array([ 0.204 , 0.1696, 0.0579])), ColourChecker_Specification(index=14, name=u'green', xyY=array([ 0.327 , 0.5033, 0.2307])), ColourChecker_Specification(index=15, name=u'red', xyY=array([ 0.5709, 0.3298, 0.1268])), ColourChecker_Specification(index=16, name=u'yellow', xyY=array([ 0.4694, 0.4732, 0.6081])), ColourChecker_Specification(index=17, name=u'magenta', xyY=array([ 0.4177, 0.2704, 0.2007])), ColourChecker_Specification(index=18, name=u'cyan', xyY=array([ 0.2151, 0.3037, 0.1903])), ColourChecker_Specification(index=19, name=u'white 9.5 (.05 D)', xyY=array([ 0.3488, 0.3628, 0.9129])), ColourChecker_Specification(index=20, name=u'neutral 8 (.23 D)', xyY=array([ 0.3451, 0.3596, 0.5885])), ColourChecker_Specification(index=21, name=u'neutral 6.5 (.44 D)', xyY=array([ 0.3446, 0.359 , 0.3595])), ColourChecker_Specification(index=22, name=u'neutral 5 (.70 D)', xyY=array([ 0.3438, 0.3589, 0.1912])), ColourChecker_Specification(index=23, name=u'neutral 3.5 (1.05 D)', xyY=array([ 0.3423, 0.3576, 0.0893])), ColourChecker_Specification(index=24, name=u'black 2 (1.5 D)', xyY=array([ 0.3439, 0.3565, 0.032 ]))], illuminant=array([ 0.3457, 0.3585])), u'cc2005': ColourChecker(name=u'ColorChecker 2005', data=[ColourChecker_Specification(index=1, name=u'dark skin', xyY=array([ 0.4316, 0.3777, 0.1008])), ColourChecker_Specification(index=2, name=u'light skin', xyY=array([ 0.4197, 0.3744, 0.3495])), ColourChecker_Specification(index=3, name=u'blue sky', xyY=array([ 0.276 , 0.3016, 0.1836])), ColourChecker_Specification(index=4, name=u'foliage', xyY=array([ 0.3703, 0.4499, 0.1325])), ColourChecker_Specification(index=5, name=u'blue flower', xyY=array([ 0.2999, 0.2856, 0.2304])), ColourChecker_Specification(index=6, name=u'bluish green', xyY=array([ 0.2848, 0.3911, 0.4178])), ColourChecker_Specification(index=7, name=u'orange', xyY=array([ 0.5295, 0.4055, 0.3118])), ColourChecker_Specification(index=8, name=u'purplish blue', xyY=array([ 0.2305, 0.2106, 0.1126])), ColourChecker_Specification(index=9, name=u'moderate red', xyY=array([ 0.5012, 0.3273, 0.1938])), ColourChecker_Specification(index=10, name=u'purple', xyY=array([ 0.3319, 0.2482, 0.0637])), ColourChecker_Specification(index=11, name=u'yellow green', xyY=array([ 0.3984, 0.5008, 0.4446])), ColourChecker_Specification(index=12, name=u'orange yellow', xyY=array([ 0.4957, 0.4427, 0.4357])), ColourChecker_Specification(index=13, name=u'blue', xyY=array([ 0.2018, 0.1692, 0.0575])), ColourChecker_Specification(index=14, name=u'green', xyY=array([ 0.3253, 0.5032, 0.2318])), ColourChecker_Specification(index=15, name=u'red', xyY=array([ 0.5686, 0.3303, 0.1257])), ColourChecker_Specification(index=16, name=u'yellow', xyY=array([ 0.4697, 0.4734, 0.5981])), ColourChecker_Specification(index=17, name=u'magenta', xyY=array([ 0.4159, 0.2688, 0.2009])), ColourChecker_Specification(index=18, name=u'cyan', xyY=array([ 0.2131, 0.3023, 0.193 ])), ColourChecker_Specification(index=19, name=u'white 9.5 (.05 D)', xyY=array([ 0.3469, 0.3608, 0.9131])), ColourChecker_Specification(index=20, name=u'neutral 8 (.23 D)', xyY=array([ 0.344 , 0.3584, 0.5894])), ColourChecker_Specification(index=21, name=u'neutral 6.5 (.44 D)', xyY=array([ 0.3432, 0.3581, 0.3632])), ColourChecker_Specification(index=22, name=u'neutral 5 (.70 D)', xyY=array([ 0.3446, 0.3579, 0.1915])), ColourChecker_Specification(index=23, name=u'neutral 3.5 (1.05 D)', xyY=array([ 0.3401, 0.3548, 0.0883])), ColourChecker_Specification(index=24, name=u'black 2 (1.5 D)', xyY=array([ 0.3406, 0.3537, 0.0311]))], illuminant=array([ 0.3457, 0.3585]))})

Aggregated ColourCheckers chromaticity coordinates.

COLOURCHECKERS : CaseInsensitiveMapping

{‘BabelColor Average’, ‘ColorChecker 2005’, ‘ColorChecker 1976’}

Aliases:

• ‘babel_average’: ‘BabelColor Average’
• ‘cc2005’: ‘ColorChecker 2005’