DatasetLoader_Hung1995.ID: build_Hung1995,
DatasetLoader_Jakob2019.ID: build_Jakob2019,
DatasetLoader_Jiang2013.ID: build_Jiang2013,
DatasetLoader_Labsphere2019.ID: build_Labsphere2019,
DatasetLoader_Luo1999.ID: build_Luo1999,
DatasetLoader_XRite2016.ID: build_XRite2016,
})
DATASET_LOADERS.__doc__ = """
Dataset loaders ids and callables.
DATASET_LOADERS : CaseInsensitiveMapping
"""
from .kuopio import DATASET_LOADERS_KUOPIO_UNIVERSITY # noqa
DATASET_LOADERS.update(DATASET_LOADERS_KUOPIO_UNIVERSITY)
from . import kuopio # noqa
_module = sys.modules['colour_datasets.loaders']
for _export in kuopio.__all__:
if _export.startswith('DatasetLoader_') or _export.startswith('build_'):
setattr(_module, _export, getattr(kuopio, _export))
__all__ += [_export]
del _module, _export
_HAS_TITLE_KEYS = False
np.array([0.34609, 0.35986]),
'F11':
np.array([0.38052, 0.37713]),
'F12':
np.array([0.43695, 0.40441])
})
"""
*CIE* illuminant chromaticity coordinates for
*CIE 1931 2 Degree Standard Observer*.
ILLUMINANTS_CIE_1931_2_DEGREE_STANDARD_OBSERVER : CaseInsensitiveMapping
"""
ILLUMINANTS_CIE_1931_2_DEGREE_STANDARD_OBSERVER.update({
'DCI-P3':
np.array([0.31400, 0.35100]),
'ACES':
np.array([0.32168, 0.33767])
})
ILLUMINANTS_CIE_1931_2_DEGREE_STANDARD_OBSERVER.update({
'FL3.1':
np.array([0.440673532892235, 0.403295963187334]),
'FL3.2':
np.array([0.380772448760695, 0.373351208240419]),
'FL3.3':
np.array([0.315280437134339, 0.343854575741321]),
'FL3.4':
np.array([0.442906984842085, 0.404320323453706]),
'FL3.5':
np.array([0.374896547314724, 0.367153489582687]),
'FL3.6':
Ebner1998DatasetLoader.ID: build_Ebner1998,
Hung1995DatasetLoader.ID: build_Hung1995,
Jiang2013DatasetLoader.ID: build_Jiang2013,
Labsphere2019DatasetLoader.ID: build_Labsphere2019,
Luo1999DatasetLoader.ID: build_Luo1999,
XRite2016DatasetLoader.ID: build_XRite2016,
})
DATASET_LOADERS.__doc__ = """
Dataset loaders ids and callables.
DATASET_LOADERS : CaseInsensitiveMapping
"""
from .kuopio import KUOPIO_UNIVERSITY_DATASET_LOADERS # noqa
DATASET_LOADERS.update(KUOPIO_UNIVERSITY_DATASET_LOADERS)
from . import kuopio # noqa
_module = sys.modules['colour_datasets.loaders']
for _export in kuopio.__all__:
if _export.endswith('DatasetLoader') or _export.startswith('build'):
setattr(_module, _export, getattr(kuopio, _export))
__all__ += [_export]
del _module, _export
_HAS_TITLE_KEYS = False
np.array([0.34580, 0.35880]),
'FL11':
np.array([0.38050, 0.37690]),
'FL12':
np.array([0.43700, 0.40420])
})
"""
*CIE* illuminant chromaticity coordinates for
*CIE 1931 2 Degree Standard Observer*.
ILLUMINANTS_CIE_1931_2_DEGREE_STANDARD_OBSERVER : CaseInsensitiveMapping
"""
ILLUMINANTS_CIE_1931_2_DEGREE_STANDARD_OBSERVER.update({
'DCI-P3':
np.array([0.31400, 0.35100]),
'ACES':
np.array([0.32168, 0.33767])
})
ILLUMINANTS_CIE_1931_2_DEGREE_STANDARD_OBSERVER.update({
'FL3.1':
np.array([0.44070, 0.40330]),
'FL3.2':
np.array([0.38080, 0.37340]),
'FL3.3':
np.array([0.31530, 0.34390]),
'FL3.4':
np.array([0.44290, 0.40430]),
'FL3.5':
np.array([0.37490, 0.36720]),
'FL3.6':
#!/usr/bin/env python # -*- coding: utf-8 -*- from __future__ import absolute_import from .crt import CRT_DISPLAYS_RGB_PRIMARIES from .lcd import LCD_DISPLAYS_RGB_PRIMARIES from colour.utilities import CaseInsensitiveMapping DISPLAYS_RGB_PRIMARIES = CaseInsensitiveMapping(CRT_DISPLAYS_RGB_PRIMARIES) DISPLAYS_RGB_PRIMARIES.update(LCD_DISPLAYS_RGB_PRIMARIES) __all__ = ['DISPLAYS_RGB_PRIMARIES']
0.4090077...
>>> eotf_reverse( # doctest: +ELLIPSIS
... 0.11699185725296059, function='ITU-R BT.1886')
0.4090077...
"""
function = EOTFS_REVERSE[function]
return function(value, **filter_kwargs(function, **kwargs))
__all__ += ['OETFS', 'OETFS_REVERSE', 'EOTFS', 'EOTFS_REVERSE']
__all__ += ['oetf', 'oetf_reverse', 'eotf', 'eotf_reverse']
ENCODING_CCTFS = CaseInsensitiveMapping(LOG_ENCODING_CURVES)
ENCODING_CCTFS.update(OETFS)
ENCODING_CCTFS.update(EOTFS_REVERSE)
ENCODING_CCTFS.update({
'Gamma 2.2': partial(function_gamma, exponent=1 / 2.2),
'Gamma 2.4': partial(function_gamma, exponent=1 / 2.4),
'Gamma 2.6': partial(function_gamma, exponent=1 / 2.6),
})
ENCODING_CCTFS.__doc__ = """
Supported encoding colour component transfer functions (Encoding CCTFs), a
collection of the functions defined by :attr:`colour.LOG_ENCODING_CURVES`,
:attr:`colour.OETFS`, :attr:`colour.EOTFS_REVERSE` attributes and 3 gamma
encoding functions (1 / 2.2, 1 / 2.4, 1 / 2.6).
Warning
-------
For *ITU-R BT.2100*, only the reverse electro-optical transfer functions
'FL8': np.array([0.34580, 0.35860]),
'FL9': np.array([0.37410, 0.37270]),
'FL10': np.array([0.34580, 0.35880]),
'FL11': np.array([0.38050, 0.37690]),
'FL12': np.array([0.43700, 0.40420])
})
"""
*CIE* illuminant chromaticity coordinates for
*CIE 1931 2 Degree Standard Observer*.
ILLUMINANTS_CIE_1931_2_DEGREE_STANDARD_OBSERVER : CaseInsensitiveMapping
"""
ILLUMINANTS_CIE_1931_2_DEGREE_STANDARD_OBSERVER.update({
'ACES': np.array([0.32168, 0.33767]),
'DCI-P3': np.array([0.31400, 0.35100]),
'ICC D50': np.array([0.345702914918791, 0.358538596679933])
})
ILLUMINANTS_CIE_1931_2_DEGREE_STANDARD_OBSERVER.update({
'FL3.1': np.array([0.44070, 0.40330]),
'FL3.2': np.array([0.38080, 0.37340]),
'FL3.3': np.array([0.31530, 0.34390]),
'FL3.4': np.array([0.44290, 0.40430]),
'FL3.5': np.array([0.37490, 0.36720]),
'FL3.6': np.array([0.34880, 0.36000]),
'FL3.7': np.array([0.43840, 0.40450]),
'FL3.8': np.array([0.38200, 0.38320]),
'FL3.9': np.array([0.34990, 0.35910]),
'FL3.10': np.array([0.34550, 0.35600]),
'FL3.11': np.array([0.32450, 0.34340]),
CCTF_ENCODINGS = CaseInsensitiveMapping({
'Gamma 2.2':
partial(gamma_function, exponent=1 / 2.2),
'Gamma 2.4':
partial(gamma_function, exponent=1 / 2.4),
'Gamma 2.6':
partial(gamma_function, exponent=1 / 2.6),
'ProPhoto RGB':
cctf_encoding_ProPhotoRGB,
'RIMM RGB':
cctf_encoding_RIMMRGB,
'ROMM RGB':
cctf_encoding_ROMMRGB,
})
CCTF_ENCODINGS.update(LOG_ENCODINGS)
CCTF_ENCODINGS.update(OETFS)
CCTF_ENCODINGS.update(EOTF_INVERSES)
CCTF_ENCODINGS.__doc__ = """
Supported encoding colour component transfer functions (Encoding CCTFs), a
collection of the functions defined by :attr:`colour.LOG_ENCODINGS`,
:attr:`colour.OETFS`, :attr:`colour.EOTF_INVERSES` attributes, the
:func:`colour.models.cctf_encoding_ProPhotoRGB`,
:func:`colour.models.cctf_encoding_RIMMRGB`,
:func:`colour.models.cctf_encoding_ROMMRGB` definitions and 3 gamma encoding
functions (1 / 2.2, 1 / 2.4, 1 / 2.6).
Warnings
--------
For *ITU-R BT.2100*, only the inverse electro-optical transfer functions
(EOTFs / EOCFs) are exposed by this attribute, please refer to the
- :cite:`Fairchild1998b` : Fairchild, M., & Wyble, D. (1998). Colorimetric
Characterization of The Apple Studio Display (flat panel LCD) (p. 22).
http://scholarworks.rit.edu/cgi/viewcontent.cgi?article=1922&\
context=article
- :cite:`Machado2010a` : Machado, Gustavo Mello. (2010). A model for
simulation of color vision deficiency and a color contrast enhancement
technique for dichromats. (pp. 1-94).
http://www.lume.ufrgs.br/handle/10183/26950
"""
from __future__ import absolute_import
from .crt import MSDS_DISPLAY_PRIMARIES_CRT
from .lcd import MSDS_DISPLAY_PRIMARIES_LCD
from colour.utilities import CaseInsensitiveMapping
MSDS_DISPLAY_PRIMARIES = CaseInsensitiveMapping(MSDS_DISPLAY_PRIMARIES_CRT)
MSDS_DISPLAY_PRIMARIES.update(MSDS_DISPLAY_PRIMARIES_LCD)
MSDS_DISPLAY_PRIMARIES.__doc__ = """
Primaries multi-spectral distributions of displays.
References
----------
:cite:`Fairchild1998b`, :cite:`Machado2010a`
MSDS_DISPLAY_PRIMARIES : CaseInsensitiveMapping
**{Apple Studio Display, Typical CRT Brainard 1997}**
"""
__all__ = ['MSDS_DISPLAY_PRIMARIES']
0.4090077...
>>> eotf_reverse( # doctest: +ELLIPSIS
... 0.11699185725296059, function='ITU-R BT.1886')
0.4090077...
"""
function = EOTFS_REVERSE[function]
return function(value, **filter_kwargs(function, **kwargs))
__all__ += ['OETFS', 'OETFS_REVERSE', 'EOTFS', 'EOTFS_REVERSE']
__all__ += ['oetf', 'oetf_reverse', 'eotf', 'eotf_reverse']
ENCODING_CCTFS = CaseInsensitiveMapping(LOG_ENCODING_CURVES)
ENCODING_CCTFS.update(OETFS)
ENCODING_CCTFS.update(EOTFS_REVERSE)
ENCODING_CCTFS.update({
'Gamma 2.2': partial(gamma_function, exponent=1 / 2.2),
'Gamma 2.4': partial(gamma_function, exponent=1 / 2.4),
'Gamma 2.6': partial(gamma_function, exponent=1 / 2.6),
})
ENCODING_CCTFS.__doc__ = """
Supported encoding colour component transfer functions (Encoding CCTFs), a
collection of the functions defined by :attr:`colour.LOG_ENCODING_CURVES`,
:attr:`colour.OETFS`, :attr:`colour.EOTFS_REVERSE` attributes and 3 gamma
encoding functions (1 / 2.2, 1 / 2.4, 1 / 2.6).
Warning
-------
For *ITU-R BT.2100*, only the reverse electro-optical transfer functions
'FL7': np.array([0.31290, 0.32920]),
'FL8': np.array([0.34580, 0.35860]),
'FL9': np.array([0.37410, 0.37270]),
'FL10': np.array([0.34580, 0.35880]),
'FL11': np.array([0.38050, 0.37690]),
'FL12': np.array([0.43700, 0.40420])
})
"""
*CIE* illuminant chromaticity coordinates for
*CIE 1931 2 Degree Standard Observer*.
ILLUMINANTS_CIE_1931_2_DEGREE_STANDARD_OBSERVER : CaseInsensitiveMapping
"""
ILLUMINANTS_CIE_1931_2_DEGREE_STANDARD_OBSERVER.update({
'DCI-P3': np.array([0.31400, 0.35100]),
'ACES': np.array([0.32168, 0.33767])
})
ILLUMINANTS_CIE_1931_2_DEGREE_STANDARD_OBSERVER.update({
'FL3.1': np.array([0.44070, 0.40330]),
'FL3.2': np.array([0.38080, 0.37340]),
'FL3.3': np.array([0.31530, 0.34390]),
'FL3.4': np.array([0.44290, 0.40430]),
'FL3.5': np.array([0.37490, 0.36720]),
'FL3.6': np.array([0.34880, 0.36000]),
'FL3.7': np.array([0.43840, 0.40450]),
'FL3.8': np.array([0.38200, 0.38320]),
'FL3.9': np.array([0.34990, 0.35910]),
'FL3.10': np.array([0.34550, 0.35600]),
'FL3.11': np.array([0.32450, 0.34340]),
'FL3.12': np.array([0.43770, 0.40370]),
def generate_illuminants_rawtoaces_v1() -> CaseInsensitiveMapping:
"""
Generate a series of illuminants according to *RAW to ACES* v1:
- *CIE Illuminant D Series* in range [4000, 25000] kelvin degrees.
- *Blackbodies* in range [1000, 3500] kelvin degrees.
- A.M.P.A.S. variant of *ISO 7589 Studio Tungsten*.
Returns
-------
:class:`colour.utilities.CaseInsensitiveMapping`
Series of illuminants.
Notes
-----
- This definition introduces a few differences compared to
*RAW to ACES* v1: *CIE Illuminant D Series* are computed in range
[4002.15, 7003.77] kelvin degrees and the :math:`C_2` change is not
used in *RAW to ACES* v1.
References
----------
:cite:`Dyer2017`
Examples
--------
>>> list(sorted(generate_illuminants_rawtoaces_v1().keys()))
['1000K Blackbody', '1500K Blackbody', '2000K Blackbody', \
'2500K Blackbody', '3000K Blackbody', '3500K Blackbody', 'D100', 'D105', \
'D110', 'D115', 'D120', 'D125', 'D130', 'D135', 'D140', 'D145', 'D150', \
'D155', 'D160', 'D165', 'D170', 'D175', 'D180', 'D185', 'D190', 'D195', \
'D200', 'D205', 'D210', 'D215', 'D220', 'D225', 'D230', 'D235', 'D240', \
'D245', 'D250', 'D40', 'D45', 'D50', 'D55', 'D60', 'D65', 'D70', 'D75', \
'D80', 'D85', 'D90', 'D95', 'iso7589']
"""
global _ILLUMINANTS_RAWTOACES_V1
if _ILLUMINANTS_RAWTOACES_V1 is not None:
illuminants = _ILLUMINANTS_RAWTOACES_V1
else:
illuminants = CaseInsensitiveMapping()
# CIE Illuminants D Series from 4000K to 25000K.
for i in np.arange(4000, 25000 + 500, 500):
CCT = i * 1.4388 / 1.4380
xy = CCT_to_xy_CIE_D(CCT)
sd = sd_CIE_illuminant_D_series(xy)
sd.name = f"D{int(CCT / 100):d}"
illuminants[sd.name] = sd.align(SPECTRAL_SHAPE_RAWTOACES)
# TODO: Remove when removing the "colour.sd_blackbody" definition
# warning.
with suppress_warnings(colour_usage_warnings=True):
# Blackbody from 1000K to 4000K.
for i in np.arange(1000, 4000, 500):
sd = sd_blackbody(i, SPECTRAL_SHAPE_RAWTOACES)
illuminants[sd.name] = sd
# A.M.P.A.S. variant of ISO 7589 Studio Tungsten.
sd = read_sds_from_csv_file(
os.path.join(RESOURCES_DIRECTORY_RAWTOACES,
"AMPAS_ISO_7589_Tungsten.csv"))["iso7589"]
illuminants.update({sd.name: sd})
_ILLUMINANTS_RAWTOACES_V1 = illuminants
return illuminants
