Coverage for colour/models/rgb/datasets/ekta_space_ps5.py: 100%

1""" 

2Ekta Space PS 5 Colourspace 

3=========================== 

4 

5Define the *Ekta Space PS 5* colourspace: 

6 

7- :attr:`colour.models.RGB_COLOURSPACE_EKTA_SPACE_PS_5`. 

8 

9References 

10---------- 

11- :cite:`Holmesa` : Holmes, J. (n.d.). Ekta Space PS 5. 

12 https://www.josephholmes.com/userfiles/Ekta_Space_PS5_JHolmes.zip 

13""" 

14 

15from __future__ import annotations 

16 

17import typing 

18from functools import partial 

19 

20import numpy as np 

21 

22from colour.colorimetry import CCS_ILLUMINANTS 

23 

24if typing.TYPE_CHECKING: 

25 from colour.hints import NDArrayFloat 

26 

27from colour.models.rgb import RGB_Colourspace, gamma_function, normalised_primary_matrix 

28 

29__author__ = "Colour Developers" 

30__copyright__ = "Copyright 2013 Colour Developers" 

31__license__ = "BSD-3-Clause - https://opensource.org/licenses/BSD-3-Clause" 

32__maintainer__ = "Colour Developers" 

33__email__ = "colour-developers@colour-science.org" 

34__status__ = "Production" 

35 

36__all__ = [ 

37 "PRIMARIES_EKTA_SPACE_PS_5", 

38 "WHITEPOINT_NAME_EKTA_SPACE_PS_5_V", 

39 "CCS_WHITEPOINT_EKTA_SPACE_PS_5", 

40 "MATRIX_EKTA_SPACE_PS_5_TO_XYZ", 

41 "MATRIX_XYZ_TO_EKTA_SPACE_PS_5", 

42 "RGB_COLOURSPACE_EKTA_SPACE_PS_5", 

43] 

44 

45PRIMARIES_EKTA_SPACE_PS_5: NDArrayFloat = np.array( 

46 [ 

47 [0.694736842105263, 0.305263157894737], 

48 [0.260000000000000, 0.700000000000000], 

49 [0.109728506787330, 0.004524886877828], 

50 ] 

51) 

52"""*Ekta Space PS 5* colourspace primaries.""" 

53 

54WHITEPOINT_NAME_EKTA_SPACE_PS_5_V: str = "D50" 

55"""*Ekta Space PS 5* colourspace whitepoint name.""" 

56 

57CCS_WHITEPOINT_EKTA_SPACE_PS_5: NDArrayFloat = CCS_ILLUMINANTS[ 

58 "CIE 1931 2 Degree Standard Observer" 

59][WHITEPOINT_NAME_EKTA_SPACE_PS_5_V] 

60"""*Ekta Space PS 5* colourspace whitepoint chromaticity coordinates.""" 

61 

62MATRIX_EKTA_SPACE_PS_5_TO_XYZ: NDArrayFloat = normalised_primary_matrix( 

63 PRIMARIES_EKTA_SPACE_PS_5, CCS_WHITEPOINT_EKTA_SPACE_PS_5 

64) 

65"""*Ekta Space PS 5* colourspace to *CIE XYZ* tristimulus values matrix.""" 

66 

67MATRIX_XYZ_TO_EKTA_SPACE_PS_5: NDArrayFloat = np.linalg.inv( 

68 MATRIX_EKTA_SPACE_PS_5_TO_XYZ 

69) 

70"""*CIE XYZ* tristimulus values to *Ekta Space PS 5* colourspace matrix.""" 

71 

72RGB_COLOURSPACE_EKTA_SPACE_PS_5: RGB_Colourspace = RGB_Colourspace( 

73 "Ekta Space PS 5", 

74 PRIMARIES_EKTA_SPACE_PS_5, 

75 CCS_WHITEPOINT_EKTA_SPACE_PS_5, 

76 WHITEPOINT_NAME_EKTA_SPACE_PS_5_V, 

77 MATRIX_EKTA_SPACE_PS_5_TO_XYZ, 

78 MATRIX_XYZ_TO_EKTA_SPACE_PS_5, 

79 partial(gamma_function, exponent=1 / 2.2), 

80 partial(gamma_function, exponent=2.2), 

81) 

82RGB_COLOURSPACE_EKTA_SPACE_PS_5.__doc__ = """ 

83*Ekta Space PS 5* colourspace. 

84 

85References 

86---------- 

87:cite:`Holmesa` 

88"""