Coverage for colour/models/rgb/tests/test_common.py: 100%

1"""Define the unit tests for the :mod:`colour.models.rgb.common` module.""" 

2 

3from __future__ import annotations 

4 

5import numpy as np 

6 

7from colour.constants import TOLERANCE_ABSOLUTE_TESTS 

8from colour.models import XYZ_to_sRGB, sRGB_to_XYZ 

9 

10__author__ = "Colour Developers" 

11__copyright__ = "Copyright 2013 Colour Developers" 

12__license__ = "BSD-3-Clause - https://opensource.org/licenses/BSD-3-Clause" 

13__maintainer__ = "Colour Developers" 

14__email__ = "colour-developers@colour-science.org" 

15__status__ = "Production" 

16 

17__all__ = [ 

18 "TestXYZ_to_sRGB", 

19 "TestsRGB_to_XYZ", 

20] 

21 

22 

23class TestXYZ_to_sRGB: 

24 """ 

25 Define :func:`colour.models.rgb.common.XYZ_to_sRGB` definition unit tests 

26 methods. 

27 """ 

28 

29 def test_XYZ_to_sRGB(self) -> None: 

30 """Test :func:`colour.models.rgb.common.XYZ_to_sRGB` definition.""" 

31 

32 np.testing.assert_allclose( 

33 XYZ_to_sRGB(np.array([0.20654008, 0.12197225, 0.05136952])), 

34 np.array([0.70573936, 0.19248266, 0.22354169]), 

35 atol=TOLERANCE_ABSOLUTE_TESTS, 

36 ) 

37 

38 np.testing.assert_allclose( 

39 XYZ_to_sRGB(np.array([0.14222010, 0.23042768, 0.10495772])), 

40 np.array([0.25847003, 0.58276102, 0.29718877]), 

41 atol=TOLERANCE_ABSOLUTE_TESTS, 

42 ) 

43 

44 np.testing.assert_allclose( 

45 XYZ_to_sRGB( 

46 np.array([0.07818780, 0.06157201, 0.28099326]), 

47 np.array([0.34570, 0.35850]), 

48 ), 

49 np.array([0.09838967, 0.25404426, 0.65130925]), 

50 atol=TOLERANCE_ABSOLUTE_TESTS, 

51 ) 

52 

53 np.testing.assert_allclose( 

54 XYZ_to_sRGB( 

55 np.array([0.00000000, 0.00000000, 0.00000000]), 

56 np.array([0.44757, 0.40745]), 

57 ), 

58 np.array([0.00000000, 0.00000000, 0.00000000]), 

59 atol=TOLERANCE_ABSOLUTE_TESTS, 

60 ) 

61 

62 np.testing.assert_allclose( 

63 XYZ_to_sRGB( 

64 np.array([0.20654008, 0.12197225, 0.05136952]), 

65 np.array([0.44757, 0.40745]), 

66 chromatic_adaptation_transform="Bradford", 

67 ), 

68 np.array([0.60873814, 0.23259548, 0.43714892]), 

69 atol=TOLERANCE_ABSOLUTE_TESTS, 

70 ) 

71 

72 np.testing.assert_allclose( 

73 XYZ_to_sRGB( 

74 np.array([0.20654008, 0.12197225, 0.05136952]), 

75 apply_cctf_encoding=False, 

76 ), 

77 np.array([0.45620520, 0.03081070, 0.04091953]), 

78 atol=TOLERANCE_ABSOLUTE_TESTS, 

79 ) 

80 

81 

82class TestsRGB_to_XYZ: 

83 """ 

84 Define :func:`colour.models.rgb.common.sRGB_to_XYZ` definition unit tests 

85 methods. 

86 """ 

87 

88 def test_sRGB_to_XYZ(self) -> None: 

89 """Test :func:`colour.models.rgb.common.sRGB_to_XYZ` definition.""" 

90 

91 np.testing.assert_allclose( 

92 sRGB_to_XYZ(np.array([0.70573936, 0.19248266, 0.22354169])), 

93 np.array([0.20654290, 0.12197943, 0.05137140]), 

94 atol=TOLERANCE_ABSOLUTE_TESTS, 

95 ) 

96 

97 np.testing.assert_allclose( 

98 sRGB_to_XYZ(np.array([0.25847003, 0.58276102, 0.29718877])), 

99 np.array([0.14222582, 0.23043727, 0.10496290]), 

100 atol=TOLERANCE_ABSOLUTE_TESTS, 

101 ) 

102 

103 np.testing.assert_allclose( 

104 sRGB_to_XYZ( 

105 np.array([0.09838967, 0.25404426, 0.65130925]), 

106 np.array([0.34570, 0.35850]), 

107 ), 

108 np.array([0.07819162, 0.06157356, 0.28099475]), 

109 atol=TOLERANCE_ABSOLUTE_TESTS, 

110 ) 

111 

112 np.testing.assert_allclose( 

113 sRGB_to_XYZ( 

114 np.array([0.00000000, 0.00000000, 0.00000000]), 

115 np.array([0.44757, 0.40745]), 

116 ), 

117 np.array([0.00000000, 0.00000000, 0.00000000]), 

118 atol=TOLERANCE_ABSOLUTE_TESTS, 

119 ) 

120 

121 np.testing.assert_allclose( 

122 sRGB_to_XYZ( 

123 np.array([0.60873814, 0.23259548, 0.43714892]), 

124 np.array([0.44757, 0.40745]), 

125 chromatic_adaptation_transform="Bradford", 

126 ), 

127 np.array([0.20654449, 0.12197792, 0.05137030]), 

128 atol=TOLERANCE_ABSOLUTE_TESTS, 

129 ) 

130 

131 np.testing.assert_allclose( 

132 sRGB_to_XYZ( 

133 np.array([0.45620520, 0.03081070, 0.04091953]), 

134 apply_cctf_decoding=False, 

135 ), 

136 np.array([0.20654291, 0.12197943, 0.05137141]), 

137 atol=TOLERANCE_ABSOLUTE_TESTS, 

138 )