Coverage for notation/tests/test_munsell.py: 100%
430 statements
« prev ^ index » next coverage.py v7.11.0, created at 2025-11-16 22:49 +1300
1"""Define the unit tests for the :mod:`colour.notation.munsell` module."""
3from __future__ import annotations
5import contextlib
6import typing
7from itertools import product
9import numpy as np
10import pytest
12from colour.constants import TOLERANCE_ABSOLUTE_TESTS
14if typing.TYPE_CHECKING:
15 from colour.hints import NDArrayFloat
17from colour.notation import (
18 munsell_value_ASTMD1535,
19 munsell_value_Ladd1955,
20 munsell_value_McCamy1987,
21 munsell_value_Moon1943,
22 munsell_value_Munsell1933,
23 munsell_value_Priest1920,
24 munsell_value_Saunderson1944,
25)
26from colour.notation.munsell import (
27 CCS_ILLUMINANT_MUNSELL,
28 LCHab_to_munsell_specification,
29 bounding_hues_from_renotation,
30 hue_angle_to_hue,
31 hue_to_ASTM_hue,
32 hue_to_hue_angle,
33 interpolation_method_from_renotation_ovoid,
34 is_grey_munsell_colour,
35 is_specification_in_renotation,
36 maximum_chroma_from_renotation,
37 munsell_colour_to_munsell_specification,
38 munsell_colour_to_xyY,
39 munsell_specification_to_munsell_colour,
40 munsell_specification_to_xy,
41 munsell_specification_to_xyY,
42 normalise_munsell_specification,
43 parse_munsell_colour,
44 xy_from_renotation_ovoid,
45 xyY_from_renotation,
46 xyY_to_munsell_colour,
47 xyY_to_munsell_specification,
48)
49from colour.utilities import (
50 as_array,
51 as_float_array,
52 domain_range_scale,
53 ignore_numpy_errors,
54 is_scipy_installed,
55 tstack,
56)
58__author__ = "Colour Developers"
59__copyright__ = "Copyright 2013 Colour Developers"
60__license__ = "BSD-3-Clause - https://opensource.org/licenses/BSD-3-Clause"
61__maintainer__ = "Colour Developers"
62__email__ = "colour-developers@colour-science.org"
63__status__ = "Production"
65__all__ = [
66 "MUNSELL_SPECIFICATIONS",
67 "MUNSELL_GREYS_SPECIFICATIONS",
68 "MUNSELL_EVEN_SPECIFICATIONS",
69 "MUNSELL_BOUNDING_HUES",
70 "MUNSELL_HUE_TO_ANGLE",
71 "MUNSELL_HUE_TO_ASTM_HUE",
72 "MUNSELL_INTERPOLATION_METHODS",
73 "MUNSELL_XY_FROM_RENOTATION_OVOID",
74 "TestMunsellValuePriest1920",
75 "TestMunsellValueMunsell1933",
76 "TestMunsellValueMoon1943",
77 "TestMunsellValueSaunderson1944",
78 "TestMunsellValueLadd1955",
79 "TestMunsellValueMcCamy1992",
80 "TestMunsellValueASTMD1535",
81 "TestMunsellSpecification_to_xyY",
82 "TestMunsellColour_to_xyY",
83 "TestxyY_to_munsell_specification",
84 "TestxyY_to_munsell_colour",
85 "TestParseMunsellColour",
86 "TestIsGreyMunsellColour",
87 "TestNormaliseMunsellSpecification",
88 "TestMunsellColourToMunsellSpecification",
89 "TestMunsellSpecificationToMunsellColour",
90 "Test_xyY_fromRenotation",
91 "TestIsSpecificationInRenotation",
92 "TestBoundingHuesFromRenotation",
93 "TestHueToHueAngle",
94 "TestHueAngleToHue",
95 "TestHueTo_ASTM_hue",
96 "TestInterpolationMethodFromRenotationOvoid",
97 "Test_xy_fromRenotationOvoid",
98 "TestLCHabToMunsellSpecification",
99 "TestMaximumChromaFromRenotation",
100 "TestMunsellSpecification_to_xy",
101]
104def _generate_unit_tests_specifications() -> tuple: # pragma: no cover
105 """
106 Generate the unit tests specifications.
108 Returns
109 -------
110 :class:`tuple`
111 Tuples of unit tests specifications. The first tuple represents even
112 specifications and their corresponding *CIE xyY* colourspace values.
113 The tuple represents random specifications and their corresponding
114 *CIE xyY* colourspace values.
115 """
117 from colour.notation import MUNSELL_COLOURS # noqa: PLC0415
119 np.random.seed(16)
121 indexes = np.arange(len(MUNSELL_COLOURS["real"]))
122 np.random.shuffle(indexes)
124 specifications, specifications_r = [], []
125 for i in indexes:
126 munsell_colour = "{} {}/{}".format(*MUNSELL_COLOURS["real"][i][0])
128 try:
129 specification = munsell_colour_to_munsell_specification(munsell_colour)
130 specification_r = specification + np.hstack(
131 [np.random.uniform(-1, 1, 3), [0]]
132 )
134 xyY = munsell_specification_to_xyY(specification)
135 xyY_r = munsell_specification_to_xyY(specification_r)
137 _munsell_colour = xyY_to_munsell_colour(xyY)
138 _munsell_colour_r = xyY_to_munsell_colour(xyY_r)
140 specifications.append([specification, xyY])
141 specifications_r.append([specification_r, xyY_r])
143 if len(specifications) == 100:
144 break
145 except (AssertionError, RuntimeError, ValueError) as error:
146 print(specification) # noqa: T201
147 print(error) # noqa: T201
149 return specifications, specifications_r
152MUNSELL_SPECIFICATIONS: NDArrayFloat = as_array(
153 [
154 [
155 [7.18927191, 5.34025196, 16.05861170, 3.00000000],
156 [0.16623068, 0.45684550, 0.22399519],
157 ],
158 [
159 [6.75749691, 9.44255422, 11.79641069, 3.00000000],
160 [0.27297006, 0.36631948, 0.86427673],
161 ],
162 [
163 [8.44964118, 7.42750072, 3.22576700, 7.00000000],
164 [0.35016714, 0.32764928, 0.48285006],
165 ],
166 [
167 [2.27432787, 1.59581362, 8.78434161, 2.00000000],
168 [0.08494989, 0.35448667, 0.02152067],
169 ],
170 [
171 [9.82364034, 5.10755230, 3.23527358, 6.00000000],
172 [0.38135277, 0.37024591, 0.20229405],
173 ],
174 [
175 [9.43158071, 6.93268985, 23.81322134, 9.00000000],
176 [0.33551832, 0.17578313, 0.41043153],
177 ],
178 [
179 [7.48132776, 2.89467904, 8.47029950, 7.00000000],
180 [0.53871366, 0.32437859, 0.05953010],
181 ],
182 [
183 [7.19717582, 1.79579794, 3.60295782, 2.00000000],
184 [0.21606607, 0.29770875, 0.02567493],
185 ],
186 [
187 [7.77779715, 1.83619425, 6.42105231, 1.00000000],
188 [0.15191376, 0.18640506, 0.02657869],
189 ],
190 [
191 [7.05646374, 8.15113870, 2.63767438, 10.00000000],
192 [0.29508705, 0.29769267, 0.60266436],
193 ],
194 [
195 [3.03969874, 8.41779328, 5.82455544, 10.00000000],
196 [0.25900977, 0.27198272, 0.65133417],
197 ],
198 [
199 [7.12616461, 4.61877951, 3.25823453, 9.00000000],
200 [0.30806367, 0.27715003, 0.16105305],
201 ],
202 [
203 [9.75994064, 5.00164995, 13.80804118, 3.00000000],
204 [0.16988405, 0.41104446, 0.19286318],
205 ],
206 [
207 [6.97677165, 8.25846010, 6.75337147, 2.00000000],
208 [0.24767890, 0.32314418, 0.62194498],
209 ],
210 [
211 [3.30599914, 6.13663591, 6.17907561, 1.00000000],
212 [0.23048205, 0.28607980, 0.30872546],
213 ],
214 [
215 [9.18340797, 7.81066836, 4.15020349, 7.00000000],
216 [0.36349464, 0.33324537, 0.54413876],
217 ],
218 [
219 [8.10631072, 3.26448077, 9.90156782, 1.00000000],
220 [0.14334034, 0.18086971, 0.07589385],
221 ],
222 [
223 [5.69603430, 5.94554581, 26.45021730, 3.00000000],
224 [0.10047143, 0.54485967, 0.28688700],
225 ],
226 [
227 [7.52941160, 3.10193862, 2.03837398, 2.00000000],
228 [0.26959492, 0.31200708, 0.06836215],
229 ],
230 [
231 [9.01080996, 8.59514291, 5.06552338, 2.00000000],
232 [0.26018550, 0.31561977, 0.68515300],
233 ],
234 [
235 [9.93350418, 6.92619502, 2.76022400, 3.00000000],
236 [0.28894781, 0.33443098, 0.40952934],
237 ],
238 [
239 [9.96785141, 1.11835600, 3.99853550, 9.00000000],
240 [0.31352711, 0.20634513, 0.01346611],
241 ],
242 [
243 [9.99840409, 3.19309711, 5.82065904, 10.00000000],
244 [0.25414765, 0.20939962, 0.07251951],
245 ],
246 [
247 [9.27080064, 2.36096768, 2.35873176, 9.00000000],
248 [0.31412335, 0.26537265, 0.04053697],
249 ],
250 [
251 [9.85478063, 4.04717472, 2.09829596, 5.00000000],
252 [0.34970053, 0.37571825, 0.12005323],
253 ],
254 [
255 [8.02558980, 6.36819633, 4.60141462, 5.00000000],
256 [0.37965729, 0.40977154, 0.33650122],
257 ],
258 [
259 [7.19056185, 7.66646120, 10.23200084, 3.00000000],
260 [0.24865695, 0.39205285, 0.52051894],
261 ],
262 [
263 [9.27459121, 8.93329764, 2.82639874, 3.00000000],
264 [0.29214864, 0.33503056, 0.75302151],
265 ],
266 [
267 [6.56514645, 4.20156404, 5.64991156, 9.00000000],
268 [0.30195484, 0.24513718, 0.13037695],
269 ],
270 [
271 [9.90928732, 9.28999046, 17.40567009, 4.00000000],
272 [0.30741363, 0.49906135, 0.82974391],
273 ],
274 [
275 [6.66033139, 7.82125559, 2.83656023, 10.00000000],
276 [0.29234640, 0.29513484, 0.54589974],
277 ],
278 [
279 [7.09563810, 9.27179818, 3.41469395, 6.00000000],
280 [0.34662788, 0.34241664, 0.82569659],
281 ],
282 [
283 [8.06308980, 7.35943482, 4.42642439, 8.00000000],
284 [0.34290892, 0.30832480, 0.47244825],
285 ],
286 [
287 [6.73937163, 4.45035611, 17.29157077, 2.00000000],
288 [0.09315578, 0.28811552, 0.14817605],
289 ],
290 [
291 [4.46091279, 4.97623184, 8.27347386, 3.00000000],
292 [0.25257308, 0.42043736, 0.19064074],
293 ],
294 [
295 [9.59823267, 4.43380834, 4.49782459, 3.00000000],
296 [0.26156547, 0.35357051, 0.14694714],
297 ],
298 [
299 [5.68236594, 5.20647917, 7.98231240, 4.00000000],
300 [0.36926047, 0.50258483, 0.21135463],
301 ],
302 [
303 [6.75749120, 9.13825880, 5.79055270, 3.00000000],
304 [0.28340044, 0.35597801, 0.79643638],
305 ],
306 [
307 [3.45818284, 2.10857125, 4.85791418, 8.00000000],
308 [0.34999194, 0.24490799, 0.03328770],
309 ],
310 [
311 [2.88591190, 3.36970167, 10.21423066, 7.00000000],
312 [0.51380217, 0.28835519, 0.08106070],
313 ],
314 [
315 [1.71270774, 1.53669828, 3.39403462, 9.00000000],
316 [0.26997438, 0.21369276, 0.02038916],
317 ],
318 [
319 [4.90655199, 3.23724997, 18.85327042, 2.00000000],
320 [0.05681430, 0.29884718, 0.07459423],
321 ],
322 [
323 [2.60942297, 4.07393682, 4.85686834, 8.00000000],
324 [0.33889111, 0.27070427, 0.12180360],
325 ],
326 [
327 [7.80566706, 4.07902945, 30.88921341, 9.00000000],
328 [0.30271734, 0.09713576, 0.12213854],
329 ],
330 [
331 [9.83519352, 8.12251250, 10.73221172, 5.00000000],
332 [0.42441612, 0.48582983, 0.59759029],
333 ],
334 [
335 [7.35317886, 7.08150026, 4.62737592, 5.00000000],
336 [0.37586606, 0.40232896, 0.43144075],
337 ],
338 [
339 [7.77389803, 6.90019200, 8.10157277, 9.00000000],
340 [0.31242681, 0.25756495, 0.40592957],
341 ],
342 [
343 [4.87250279, 4.19552668, 18.70870067, 9.00000000],
344 [0.26755998, 0.13995403, 0.12996294],
345 ],
346 [
347 [7.38366474, 3.35764668, 12.11239914, 9.00000000],
348 [0.30031035, 0.16953394, 0.08045698],
349 ],
350 [
351 [5.11434827, 6.25840324, 18.46717586, 9.00000000],
352 [0.27423716, 0.17360892, 0.32315057],
353 ],
354 [
355 [6.50234711, 7.39248581, 8.42947132, 8.00000000],
356 [0.36895615, 0.29211972, 0.47748118],
357 ],
358 [
359 [5.12057785, 6.74131875, 9.90906687, 9.00000000],
360 [0.28824634, 0.23317117, 0.38435902],
361 ],
362 [
363 [7.97767039, 3.80398969, 4.31555212, 7.00000000],
364 [0.41347359, 0.33271080, 0.10489086],
365 ],
366 [
367 [8.28257058, 4.99288145, 4.13426077, 10.00000000],
368 [0.27534267, 0.26445867, 0.19209471],
369 ],
370 [
371 [2.27833490, 3.13652250, 12.74644014, 9.00000000],
372 [0.24604475, 0.14443079, 0.06991948],
373 ],
374 [
375 [4.17788614, 4.56875266, 4.69980113, 8.00000000],
376 [0.34608761, 0.28369563, 0.15715775],
377 ],
378 [
379 [5.52166738, 2.72767471, 10.73842907, 8.00000000],
380 [0.41659713, 0.21166956, 0.05302211],
381 ],
382 [
383 [1.96964226, 5.83362103, 28.30224843, 3.00000000],
384 [0.11730240, 0.75674218, 0.27454364],
385 ],
386 [
387 [4.22034979, 7.29875716, 8.00238058, 7.00000000],
388 [0.40163259, 0.32283516, 0.46329585],
389 ],
390 [
391 [8.10122939, 7.84099254, 13.76355873, 4.00000000],
392 [0.34218201, 0.54357248, 0.54919251],
393 ],
394 [
395 [6.93175327, 3.88633728, 4.19698393, 4.00000000],
396 [0.33428973, 0.42675447, 0.10987617],
397 ],
398 [
399 [7.17972997, 7.76394588, 5.52955464, 5.00000000],
400 [0.38311308, 0.41154624, 0.53641155],
401 ],
402 [
403 [7.44539380, 2.45826571, 18.17553552, 8.00000000],
404 [0.49593109, 0.16155048, 0.04361652],
405 ],
406 [
407 [6.57942671, 5.70954742, 4.21109407, 7.00000000],
408 [0.37391946, 0.32682537, 0.26124266],
409 ],
410 [
411 [7.07918723, 3.60945090, 5.18867792, 10.00000000],
412 [0.24565114, 0.22732867, 0.09371006],
413 ],
414 [
415 [9.19704045, 7.64270856, 20.12511878, 4.00000000],
416 [0.31036980, 0.63853638, 0.51669329],
417 ],
418 [
419 [7.38744649, 2.69345468, 6.96087944, 8.00000000],
420 [0.40651600, 0.25385677, 0.05175378],
421 ],
422 [
423 [5.71814887, 1.35726940, 4.25987210, 6.00000000],
424 [0.55344553, 0.38963438, 0.01720090],
425 ],
426 [
427 [7.65193815, 5.15801515, 17.63637606, 8.00000000],
428 [0.47344711, 0.24662331, 0.20688549],
429 ],
430 [
431 [5.80035357, 8.46843486, 3.91395266, 7.00000000],
432 [0.35101966, 0.32394467, 0.66087042],
433 ],
434 [
435 [2.64017362, 6.58022725, 25.27474395, 3.00000000],
436 [0.15857410, 0.65244571, 0.36322040],
437 ],
438 [
439 [6.81904597, 7.52735613, 14.14454379, 5.00000000],
440 [0.46547138, 0.50598542, 0.49837113],
441 ],
442 [
443 [1.72002655, 2.00166767, 15.17756223, 3.00000000],
444 [0.06593801, 0.78772140, 0.03052292],
445 ],
446 [
447 [7.17387426, 7.40686142, 4.67300544, 6.00000000],
448 [0.38508722, 0.36570863, 0.47968081],
449 ],
450 [
451 [5.66354474, 8.29189799, 7.88289254, 2.00000000],
452 [0.24153734, 0.33167097, 0.62803620],
453 ],
454 [
455 [4.96369167, 6.11709577, 2.83010340, 9.00000000],
456 [0.30299188, 0.28933160, 0.30644773],
457 ],
458 [
459 [9.86666880, 3.53860824, 3.76283439, 4.00000000],
460 [0.30878925, 0.40194660, 0.08984394],
461 ],
462 [
463 [2.54469570, 1.94205063, 6.51472847, 8.00000000],
464 [0.34838418, 0.21610764, 0.02905603],
465 ],
466 [
467 [7.41841874, 7.28061720, 7.52688380, 5.00000000],
468 [0.41055673, 0.44673738, 0.46058155],
469 ],
470 [
471 [1.75980807, 3.96245086, 15.45788733, 3.00000000],
472 [0.19389711, 0.63957903, 0.11461936],
473 ],
474 [
475 [4.71729705, 3.34696841, 7.66988506, 6.00000000],
476 [0.52645405, 0.39761412, 0.07992475],
477 ],
478 [
479 [2.08610570, 6.73042407, 7.05471426, 1.00000000],
480 [0.22763195, 0.29145327, 0.38290628],
481 ],
482 [
483 [2.27268990, 3.26447649, 7.69468499, 6.00000000],
484 [0.53002779, 0.37341819, 0.07589364],
485 ],
486 [
487 [7.23049017, 4.12309620, 15.10943786, 8.00000000],
488 [0.46585026, 0.23748776, 0.12506155],
489 ],
490 [
491 [6.64140481, 2.17555713, 5.41523047, 7.00000000],
492 [0.46318547, 0.31027036, 0.03511077],
493 ],
494 [
495 [7.37490620, 1.75480377, 16.97212717, 9.00000000],
496 [0.28825940, 0.09568892, 0.02478061],
497 ],
498 [
499 [4.33290089, 2.10328054, 2.19891461, 10.00000000],
500 [0.25933572, 0.26024656, 0.03314673],
501 ],
502 [
503 [9.12491352, 3.86980063, 15.33312818, 3.00000000],
504 [0.12639463, 0.43809589, 0.10886288],
505 ],
506 [
507 [3.39633194, 4.88689265, 23.54167471, 3.00000000],
508 [0.10976610, 0.64434470, 0.18295497],
509 ],
510 [
511 [2.61214646, 1.14977763, 7.81503339, 2.00000000],
512 [0.06586815, 0.34294740, 0.01392758],
513 ],
514 [
515 [3.29714039, 2.54520254, 13.61325521, 8.00000000],
516 [0.39022459, 0.16803475, 0.04650827],
517 ],
518 [
519 [2.78196233, 4.33925419, 16.17790238, 3.00000000],
520 [0.17272546, 0.59343082, 0.14004876],
521 ],
522 [
523 [7.51260170, 3.39633095, 9.42584908, 2.00000000],
524 [0.14825319, 0.28502763, 0.08240516],
525 ],
526 [
527 [4.46597913, 8.02986601, 3.85801792, 1.00000000],
528 [0.26863443, 0.30193859, 0.58136398],
529 ],
530 [
531 [2.29263540, 4.86650662, 7.08151101, 8.00000000],
532 [0.34377887, 0.26102802, 0.18122849],
533 ],
534 [
535 [6.82015249, 5.14066765, 21.13348572, 9.00000000],
536 [0.29448492, 0.15338239, 0.20529997],
537 ],
538 [
539 [4.31245640, 4.85614027, 11.50803662, 6.00000000],
540 [0.54231929, 0.40629376, 0.18035446],
541 ],
542 [
543 [8.22108412, 5.80818951, 3.94579416, 8.00000000],
544 [0.34702328, 0.30674052, 0.27178470],
545 ],
546 [
547 [8.31388115, 4.66785495, 3.69434623, 5.00000000],
548 [0.38078540, 0.41116296, 0.16493242],
549 ],
550 [
551 [3.40490668, 6.59689139, 9.20874115, 7.00000000],
552 [0.41967010, 0.31821655, 0.36537324],
553 ],
554 ],
555 dtype=object, # pyright: ignore
556)
558MUNSELL_GREYS_SPECIFICATIONS: NDArrayFloat = as_array(
559 list(
560 zip(
561 np.linspace(0, 10, 25)[:, None],
562 (
563 [0.31006, 0.31616, 0.00000000],
564 [0.31006, 0.31616, 0.00473582],
565 [0.31006, 0.31616, 0.00961944],
566 [0.31006, 0.31616, 0.01545756],
567 [0.31006, 0.31616, 0.02293343],
568 [0.31006, 0.31616, 0.03261914],
569 [0.31006, 0.31616, 0.04498800],
570 [0.31006, 0.31616, 0.06042690],
571 [0.31006, 0.31616, 0.07924864],
572 [0.31006, 0.31616, 0.10170428],
573 [0.31006, 0.31616, 0.12799549],
574 [0.31006, 0.31616, 0.15828689],
575 [0.31006, 0.31616, 0.19271844],
576 [0.31006, 0.31616, 0.23141772],
577 [0.31006, 0.31616, 0.27451233],
578 [0.31006, 0.31616, 0.32214224],
579 [0.31006, 0.31616, 0.37447210],
580 [0.31006, 0.31616, 0.43170362],
581 [0.31006, 0.31616, 0.49408790],
582 [0.31006, 0.31616, 0.56193781],
583 [0.31006, 0.31616, 0.63564030],
584 [0.31006, 0.31616, 0.71566876],
585 [0.31006, 0.31616, 0.80259539],
586 [0.31006, 0.31616, 0.89710353],
587 [0.31006, 0.31616, 1.00000000],
588 ),
589 strict=True,
590 )
591 ),
592 dtype=object, # pyright: ignore
593)
595MUNSELL_EVEN_SPECIFICATIONS: NDArrayFloat = as_array(
596 [
597 [(7.5, 6.0, 16.0, 3), [0.18320000, 0.44140000, 0.29301153]],
598 [(7.5, 9.0, 12.0, 3), [0.24190000, 0.39850000, 0.76695586]],
599 [(7.5, 8.0, 4.0, 7), [0.35640000, 0.32790000, 0.57619628]],
600 [(2.5, 2.0, 8.0, 2), [0.15570000, 0.35170000, 0.03048116]],
601 [(10.0, 6.0, 4.0, 6), [0.38610000, 0.37670000, 0.29301153]],
602 [(10.0, 6.0, 24.0, 9), [0.34410000, 0.16980000, 0.29301153]],
603 [(7.5, 2.0, 8.0, 7), [0.54330000, 0.30270000, 0.03048116]],
604 [(7.5, 1.0, 4.0, 2), [0.17020000, 0.27680000, 0.01179925]],
605 [(7.5, 1.0, 6.0, 1), [0.13030000, 0.16390000, 0.01179925]],
606 [(7.5, 9.0, 2.0, 10), [0.30150000, 0.30520000, 0.76695586]],
607 [(2.5, 8.0, 6.0, 10), [0.25620000, 0.27090000, 0.57619628]],
608 [(7.5, 5.0, 4.0, 9), [0.31000000, 0.27500000, 0.19271844]],
609 [(10.0, 5.0, 14.0, 3), [0.16710000, 0.40890000, 0.19271844]],
610 [(7.5, 9.0, 6.0, 2), [0.25430000, 0.32200000, 0.76695586]],
611 [(2.5, 6.0, 6.0, 1), [0.23120000, 0.28990000, 0.29301153]],
612 [(10.0, 8.0, 4.0, 7), [0.36210000, 0.33490000, 0.57619628]],
613 [(7.5, 4.0, 10.0, 1), [0.16010000, 0.20280000, 0.11700751]],
614 [(5.0, 5.0, 26.0, 3), [0.07840000, 0.57610000, 0.19271844]],
615 [(7.5, 3.0, 2.0, 2), [0.26990000, 0.31200000, 0.06391178]],
616 [(10.0, 9.0, 6.0, 2), [0.25010000, 0.31180000, 0.76695586]],
617 [(10.0, 6.0, 2.0, 3), [0.29290000, 0.33030000, 0.29301153]],
618 [(10.0, 1.0, 4.0, 9), [0.31320000, 0.20320000, 0.01179925]],
619 [(10.0, 3.0, 6.0, 10), [0.25110000, 0.20310000, 0.06391178]],
620 [(10.0, 2.0, 2.0, 9), [0.31610000, 0.26910000, 0.03048116]],
621 [(10.0, 5.0, 2.0, 5), [0.34220000, 0.36480000, 0.19271844]],
622 [(7.5, 6.0, 4.0, 5), [0.37450000, 0.40040000, 0.29301153]],
623 [(7.5, 7.0, 10.0, 3), [0.24450000, 0.39140000, 0.41985394]],
624 [(10.0, 9.0, 2.0, 3), [0.29650000, 0.32930000, 0.76695586]],
625 [(7.5, 4.0, 6.0, 9), [0.30760000, 0.24160000, 0.11700751]],
626 [(10.0, 9.0, 18.0, 4), [0.30320000, 0.57480000, 0.76695586]],
627 [(7.5, 7.0, 2.0, 10), [0.29820000, 0.30030000, 0.41985394]],
628 [(7.5, 9.0, 4.0, 6), [0.36790000, 0.35850000, 0.76695586]],
629 [(7.5, 7.0, 4.0, 8), [0.33890000, 0.30790000, 0.41985394]],
630 [(7.5, 5.0, 18.0, 2), [0.09820000, 0.28280000, 0.19271844]],
631 [(5.0, 5.0, 8.0, 3), [0.25110000, 0.41070000, 0.19271844]],
632 [(10.0, 5.0, 4.0, 3), [0.27110000, 0.34550000, 0.19271844]],
633 [(5.0, 5.0, 8.0, 4), [0.38150000, 0.50930000, 0.19271844]],
634 [(7.5, 9.0, 6.0, 3), [0.27630000, 0.36070000, 0.76695586]],
635 [(2.5, 2.0, 4.0, 8), [0.33820000, 0.24960000, 0.03048116]],
636 [(2.5, 4.0, 10.0, 7), [0.47740000, 0.29690000, 0.11700751]],
637 [(2.5, 2.0, 4.0, 9), [0.27580000, 0.22080000, 0.03048116]],
638 [(5.0, 4.0, 18.0, 2), [0.08280000, 0.31080000, 0.11700751]],
639 [(2.5, 5.0, 4.0, 8), [0.32980000, 0.28690000, 0.19271844]],
640 [(7.5, 4.0, 30.0, 9), [0.29690000, 0.09790000, 0.11700751]],
641 [(10.0, 8.0, 10.0, 5), [0.41900000, 0.47910000, 0.57619628]],
642 [(7.5, 8.0, 4.0, 5), [0.36220000, 0.38610000, 0.57619628]],
643 [(7.5, 6.0, 8.0, 9), [0.30990000, 0.25020000, 0.29301153]],
644 [(5.0, 5.0, 18.0, 9), [0.27180000, 0.16040000, 0.19271844]],
645 [(7.5, 4.0, 12.0, 9), [0.30450000, 0.19050000, 0.11700751]],
646 [(5.0, 6.0, 18.0, 9), [0.27310000, 0.17380000, 0.29301153]],
647 [(7.5, 8.0, 8.0, 8), [0.36820000, 0.29830000, 0.57619628]],
648 [(5.0, 6.0, 10.0, 9), [0.28620000, 0.22600000, 0.29301153]],
649 [(7.5, 3.0, 4.0, 7), [0.42400000, 0.33020000, 0.06391178]],
650 [(7.5, 4.0, 4.0, 10), [0.26570000, 0.25280000, 0.11700751]],
651 [(2.5, 4.0, 12.0, 9), [0.25590000, 0.17300000, 0.11700751]],
652 [(5.0, 4.0, 4.0, 8), [0.34910000, 0.28720000, 0.11700751]],
653 [(5.0, 3.0, 10.0, 8), [0.40730000, 0.22350000, 0.06391178]],
654 [(2.5, 5.0, 28.0, 3), [0.07940000, 0.73850000, 0.19271844]],
655 [(5.0, 8.0, 8.0, 7), [0.40010000, 0.32630000, 0.57619628]],
656 [(7.5, 8.0, 14.0, 4), [0.35460000, 0.54900000, 0.57619628]],
657 [(7.5, 3.0, 4.0, 4), [0.32700000, 0.42880000, 0.06391178]],
658 [(7.5, 7.0, 6.0, 5), [0.39430000, 0.42640000, 0.41985394]],
659 [(7.5, 3.0, 18.0, 8), [0.51300000, 0.18930000, 0.06391178]],
660 [(7.5, 5.0, 4.0, 7), [0.38060000, 0.32940000, 0.19271844]],
661 [(7.5, 3.0, 6.0, 10), [0.23110000, 0.20100000, 0.06391178]],
662 [(10.0, 7.0, 20.0, 4), [0.28160000, 0.65630000, 0.41985394]],
663 [(7.5, 3.0, 6.0, 8), [0.39900000, 0.27080000, 0.06391178]],
664 [(5.0, 1.0, 4.0, 6), [0.56600000, 0.37950000, 0.01179925]],
665 [(7.5, 6.0, 18.0, 8), [0.45810000, 0.25490000, 0.29301153]],
666 [(5.0, 9.0, 4.0, 7), [0.34950000, 0.32260000, 0.76695586]],
667 [(2.5, 6.0, 26.0, 3), [0.13400000, 0.68710000, 0.29301153]],
668 [(7.5, 8.0, 14.0, 5), [0.45740000, 0.50620000, 0.57619628]],
669 [(2.5, 2.0, 16.0, 3), [0.03290000, 0.73580000, 0.03048116]],
670 [(7.5, 8.0, 4.0, 6), [0.36990000, 0.35860000, 0.57619628]],
671 [(5.0, 8.0, 8.0, 2), [0.24190000, 0.33520000, 0.57619628]],
672 [(5.0, 6.0, 2.0, 9), [0.30500000, 0.29670000, 0.29301153]],
673 [(10.0, 4.0, 4.0, 4), [0.31000000, 0.40180000, 0.11700751]],
674 [(2.5, 2.0, 6.0, 8), [0.34700000, 0.22590000, 0.03048116]],
675 [(7.5, 7.0, 8.0, 5), [0.41840000, 0.45680000, 0.41985394]],
676 [(2.5, 3.0, 16.0, 3), [0.13410000, 0.64200000, 0.06391178]],
677 [(5.0, 3.0, 8.0, 6), [0.54560000, 0.40400000, 0.06391178]],
678 [(2.5, 6.0, 8.0, 1), [0.20800000, 0.27890000, 0.29301153]],
679 [(2.5, 4.0, 8.0, 6), [0.50710000, 0.37770000, 0.11700751]],
680 [(7.5, 5.0, 16.0, 8), [0.46170000, 0.25060000, 0.19271844]],
681 [(7.5, 2.0, 6.0, 7), [0.48750000, 0.31230000, 0.03048116]],
682 [(7.5, 2.0, 16.0, 9), [0.29220000, 0.11060000, 0.03048116]],
683 [(5.0, 2.0, 2.0, 10), [0.26380000, 0.26240000, 0.03048116]],
684 [(10.0, 3.0, 16.0, 3), [0.09250000, 0.42750000, 0.06391178]],
685 [(2.5, 5.0, 24.0, 3), [0.11880000, 0.69180000, 0.19271844]],
686 [(2.5, 1.0, 8.0, 2), [0.04760000, 0.34580000, 0.01179925]],
687 [(2.5, 2.0, 14.0, 8), [0.37110000, 0.14490000, 0.03048116]],
688 [(2.5, 5.0, 16.0, 3), [0.20050000, 0.57590000, 0.19271844]],
689 [(7.5, 3.0, 10.0, 2), [0.13260000, 0.27840000, 0.06391178]],
690 [(5.0, 8.0, 4.0, 1), [0.26710000, 0.29980000, 0.57619628]],
691 [(2.5, 5.0, 8.0, 8), [0.34900000, 0.25700000, 0.19271844]],
692 [(7.5, 5.0, 22.0, 9), [0.30380000, 0.15000000, 0.19271844]],
693 [(5.0, 5.0, 12.0, 6), [0.54220000, 0.41410000, 0.19271844]],
694 [(7.5, 5.0, 4.0, 8), [0.35150000, 0.30240000, 0.19271844]],
695 [(7.5, 5.0, 4.0, 5), [0.38500000, 0.41200000, 0.19271844]],
696 [(2.5, 6.0, 10.0, 7), [0.43200000, 0.31180000, 0.29301153]],
697 [(8.0, 2, 14.0, 1), [0.07257382, 0.10413956, 0.03048116]],
698 ],
699 dtype=object, # pyright: ignore
700)
702MUNSELL_BOUNDING_HUES: NDArrayFloat = as_float_array(
703 [
704 ((5.0, 3.0), (7.5, 3.0)),
705 ((5.0, 3.0), (7.5, 3.0)),
706 ((7.5, 7.0), (10, 7.0)),
707 ((10, 3.0), (2.5, 2.0)),
708 ((7.5, 6.0), (10, 6.0)),
709 ((7.5, 9.0), (10, 9.0)),
710 ((5.0, 7.0), (7.5, 7.0)),
711 ((5.0, 2.0), (7.5, 2.0)),
712 ((7.5, 1.0), (10, 1.0)),
713 ((5.0, 10.0), (7.5, 10.0)),
714 ((2.5, 10.0), (5.0, 10.0)),
715 ((5.0, 9.0), (7.5, 9.0)),
716 ((7.5, 3.0), (10, 3.0)),
717 ((5.0, 2.0), (7.5, 2.0)),
718 ((2.5, 1.0), (5.0, 1.0)),
719 ((7.5, 7.0), (10, 7.0)),
720 ((7.5, 1.0), (10, 1.0)),
721 ((5.0, 3.0), (7.5, 3.0)),
722 ((7.5, 2.0), (10, 2.0)),
723 ((7.5, 2.0), (10, 2.0)),
724 ((7.5, 3.0), (10, 3.0)),
725 ((7.5, 9.0), (10, 9.0)),
726 ((7.5, 10.0), (10, 10.0)),
727 ((7.5, 9.0), (10, 9.0)),
728 ((7.5, 5.0), (10, 5.0)),
729 ((7.5, 5.0), (10, 5.0)),
730 ((5.0, 3.0), (7.5, 3.0)),
731 ((7.5, 3.0), (10, 3.0)),
732 ((5.0, 9.0), (7.5, 9.0)),
733 ((7.5, 4.0), (10, 4.0)),
734 ((5.0, 10.0), (7.5, 10.0)),
735 ((5.0, 6.0), (7.5, 6.0)),
736 ((7.5, 8.0), (10, 8.0)),
737 ((5.0, 2.0), (7.5, 2.0)),
738 ((2.5, 3.0), (5.0, 3.0)),
739 ((7.5, 3.0), (10, 3.0)),
740 ((5.0, 4.0), (7.5, 4.0)),
741 ((5.0, 3.0), (7.5, 3.0)),
742 ((2.5, 8.0), (5.0, 8.0)),
743 ((2.5, 7.0), (5.0, 7.0)),
744 ((10, 10), (2.5, 9.0)),
745 ((2.5, 2.0), (5.0, 2.0)),
746 ((2.5, 8.0), (5.0, 8.0)),
747 ((7.5, 9.0), (10, 9.0)),
748 ((7.5, 5.0), (10, 5.0)),
749 ((5.0, 5.0), (7.5, 5.0)),
750 ((7.5, 9.0), (10, 9.0)),
751 ((2.5, 9.0), (5.0, 9.0)),
752 ((5.0, 9.0), (7.5, 9.0)),
753 ((5.0, 9.0), (7.5, 9.0)),
754 ((5.0, 8.0), (7.5, 8.0)),
755 ((5.0, 9.0), (7.5, 9.0)),
756 ((7.5, 7.0), (10, 7.0)),
757 ((7.5, 10.0), (10, 10.0)),
758 ((10, 10), (2.5, 9.0)),
759 ((2.5, 8.0), (5.0, 8.0)),
760 ((5.0, 8.0), (7.5, 8.0)),
761 ((10, 4.0), (2.5, 3.0)),
762 ((2.5, 7.0), (5.0, 7.0)),
763 ((7.5, 4.0), (10, 4.0)),
764 ((5.0, 4.0), (7.5, 4.0)),
765 ((5.0, 5.0), (7.5, 5.0)),
766 ((5.0, 8.0), (7.5, 8.0)),
767 ((5.0, 7.0), (7.5, 7.0)),
768 ((5.0, 10.0), (7.5, 10.0)),
769 ((7.5, 4.0), (10, 4.0)),
770 ((5.0, 8.0), (7.5, 8.0)),
771 ((5.0, 6.0), (7.5, 6.0)),
772 ((7.5, 8.0), (10, 8.0)),
773 ((5.0, 7.0), (7.5, 7.0)),
774 ((2.5, 3.0), (5.0, 3.0)),
775 ((5.0, 5.0), (7.5, 5.0)),
776 ((10, 4.0), (2.5, 3.0)),
777 ((5.0, 6.0), (7.5, 6.0)),
778 ((5.0, 2.0), (7.5, 2.0)),
779 ((2.5, 9.0), (5.0, 9.0)),
780 ((7.5, 4.0), (10, 4.0)),
781 ((2.5, 8.0), (5.0, 8.0)),
782 ((5.0, 5.0), (7.5, 5.0)),
783 ((10, 4.0), (2.5, 3.0)),
784 ((2.5, 6.0), (5.0, 6.0)),
785 ((10, 2.0), (2.5, 1.0)),
786 ((10, 7.0), (2.5, 6.0)),
787 ((5.0, 8.0), (7.5, 8.0)),
788 ((5.0, 7.0), (7.5, 7.0)),
789 ((5.0, 9.0), (7.5, 9.0)),
790 ((2.5, 10.0), (5.0, 10.0)),
791 ((7.5, 3.0), (10, 3.0)),
792 ((2.5, 3.0), (5.0, 3.0)),
793 ((2.5, 2.0), (5.0, 2.0)),
794 ((2.5, 8.0), (5.0, 8.0)),
795 ((2.5, 3.0), (5.0, 3.0)),
796 ((7.5, 2.0), (10, 2.0)),
797 ((2.5, 1.0), (5.0, 1.0)),
798 ((10, 9.0), (2.5, 8.0)),
799 ((5.0, 9.0), (7.5, 9.0)),
800 ((2.5, 6.0), (5.0, 6.0)),
801 ((7.5, 8.0), (10, 8.0)),
802 ((7.5, 5.0), (10, 5.0)),
803 ((2.5, 7.0), (5.0, 7.0)),
804 ]
805)
807MUNSELL_HUE_TO_ANGLE: NDArrayFloat = np.array(
808 [
809 [2.5, 1, 208.750],
810 [2.5, 2, 153.750],
811 [2.5, 3, 118.750],
812 [2.5, 4, 63.750],
813 [2.5, 5, 39.375],
814 [2.5, 6, 16.875],
815 [2.5, 7, 348.750],
816 [2.5, 8, 300.000],
817 [2.5, 9, 251.250],
818 [2.5, 10, 236.250],
819 [5.0, 1, 225.000],
820 [5.0, 2, 160.000],
821 [5.0, 3, 135.000],
822 [5.0, 4, 70.000],
823 [5.0, 5, 45.000],
824 [5.0, 6, 22.500],
825 [5.0, 7, 0.000],
826 [5.0, 8, 315.000],
827 [5.0, 9, 255.000],
828 [5.0, 10, 240.000],
829 [7.5, 1, 228.750],
830 [7.5, 2, 176.250],
831 [7.5, 3, 141.250],
832 [7.5, 4, 86.250],
833 [7.5, 5, 51.250],
834 [7.5, 6, 28.125],
835 [7.5, 7, 5.625],
836 [7.5, 8, 326.250],
837 [7.5, 9, 270.000],
838 [7.5, 10, 243.750],
839 [10.0, 1, 232.500],
840 [10.0, 2, 192.500],
841 [10.0, 3, 147.500],
842 [10.0, 4, 102.500],
843 [10.0, 5, 57.500],
844 [10.0, 6, 33.750],
845 [10.0, 7, 11.250],
846 [10.0, 8, 337.500],
847 [10.0, 9, 285.000],
848 [10.0, 10, 247.500],
849 ]
850)
852MUNSELL_HUE_TO_ASTM_HUE: NDArrayFloat = np.array(
853 [
854 [2.5, 0, 72.5],
855 [2.5, 1, 62.5],
856 [2.5, 2, 52.5],
857 [2.5, 3, 42.5],
858 [2.5, 4, 32.5],
859 [2.5, 5, 22.5],
860 [2.5, 6, 12.5],
861 [2.5, 7, 2.5],
862 [2.5, 8, 92.5],
863 [2.5, 9, 82.5],
864 [2.5, 10, 72.5],
865 [5.0, 0, 75.0],
866 [5.0, 1, 65.0],
867 [5.0, 2, 55.0],
868 [5.0, 3, 45.0],
869 [5.0, 4, 35.0],
870 [5.0, 5, 25.0],
871 [5.0, 6, 15.0],
872 [5.0, 7, 5.0],
873 [5.0, 8, 95.0],
874 [5.0, 9, 85.0],
875 [5.0, 10, 75.0],
876 [7.5, 0, 77.5],
877 [7.5, 1, 67.5],
878 [7.5, 2, 57.5],
879 [7.5, 3, 47.5],
880 [7.5, 4, 37.5],
881 [7.5, 5, 27.5],
882 [7.5, 6, 17.5],
883 [7.5, 7, 7.5],
884 [7.5, 8, 97.5],
885 [7.5, 9, 87.5],
886 [7.5, 10, 77.5],
887 [10.0, 0, 80.0],
888 [10.0, 1, 70.0],
889 [10.0, 2, 60.0],
890 [10.0, 3, 50.0],
891 [10.0, 4, 40.0],
892 [10.0, 5, 30.0],
893 [10.0, 6, 20.0],
894 [10.0, 7, 10.0],
895 [10.0, 8, 100.0],
896 [10.0, 9, 90.0],
897 [10.0, 10, 80.0],
898 ]
899)
901MUNSELL_INTERPOLATION_METHODS: list = [
902 "Linear",
903 "Linear",
904 "Radial",
905 "Linear",
906 "Radial",
907 "Linear",
908 "Linear",
909 "Linear",
910 "Radial",
911 "Radial",
912 "Radial",
913 "Linear",
914 "Linear",
915 "Linear",
916 "Radial",
917 "Radial",
918 "Radial",
919 "Linear",
920 "Linear",
921 "Linear",
922 "Linear",
923 "Linear",
924 "Radial",
925 "Linear",
926 "Radial",
927 "Radial",
928 "Linear",
929 "Linear",
930 "Linear",
931 "Radial",
932 "Radial",
933 "Radial",
934 "Linear",
935 "Radial",
936 "Linear",
937 "Linear",
938 "Radial",
939 "Linear",
940 "Linear",
941 "Linear",
942 "Linear",
943 "Linear",
944 "Linear",
945 "Linear",
946 "Radial",
947 "Radial",
948 "Linear",
949 "Linear",
950 "Linear",
951 "Linear",
952 "Linear",
953 "Linear",
954 "Radial",
955 "Radial",
956 "Linear",
957 "Linear",
958 "Linear",
959 "Linear",
960 "Linear",
961 "Radial",
962 "Linear",
963 "Radial",
964 "Linear",
965 "Radial",
966 "Radial",
967 "Linear",
968 "Linear",
969 "Radial",
970 "Linear",
971 "Linear",
972 "Linear",
973 "Linear",
974 "Linear",
975 "Radial",
976 "Linear",
977 "Radial",
978 "Radial",
979 "Linear",
980 "Radial",
981 "Linear",
982 "Radial",
983 "Radial",
984 "Radial",
985 "Linear",
986 "Linear",
987 "Linear",
988 "Linear",
989 "Linear",
990 "Linear",
991 "Linear",
992 "Linear",
993 "Linear",
994 "Linear",
995 "Radial",
996 "Linear",
997 "Linear",
998 "Radial",
999 "Linear",
1000 "Radial",
1001 "Linear",
1002 "Radial",
1003]
1005MUNSELL_XY_FROM_RENOTATION_OVOID: list = [
1006 [0.1832, 0.4414],
1007 [0.2419, 0.3985],
1008 [0.3564, 0.3279],
1009 [0.1557, 0.3517],
1010 [0.3861, 0.3767],
1011 [0.3441, 0.1698],
1012 [0.5433, 0.3027],
1013 [0.1702, 0.2768],
1014 [0.1303, 0.1639],
1015 [0.3015, 0.3052],
1016 [0.2562, 0.2709],
1017 [0.3100, 0.2750],
1018 [0.1671, 0.4089],
1019 [0.2543, 0.3220],
1020 [0.2312, 0.2899],
1021 [0.3621, 0.3349],
1022 [0.1601, 0.2028],
1023 [0.0784, 0.5761],
1024 [0.2699, 0.3120],
1025 [0.2501, 0.3118],
1026 [0.2929, 0.3303],
1027 [0.3132, 0.2032],
1028 [0.2511, 0.2031],
1029 [0.3161, 0.2691],
1030 [0.3422, 0.3648],
1031 [0.3745, 0.4004],
1032 [0.2445, 0.3914],
1033 [0.2965, 0.3293],
1034 [0.3076, 0.2416],
1035 [0.3032, 0.5748],
1036 [0.2982, 0.3003],
1037 [0.3679, 0.3585],
1038 [0.3389, 0.3079],
1039 [0.0982, 0.2828],
1040 [0.2511, 0.4107],
1041 [0.2711, 0.3455],
1042 [0.3815, 0.5093],
1043 [0.2763, 0.3607],
1044 [0.3382, 0.2496],
1045 [0.4774, 0.2969],
1046 [0.2758, 0.2208],
1047 [0.0828, 0.3108],
1048 [0.3298, 0.2869],
1049 [0.2969, 0.0979],
1050 [0.4190, 0.4791],
1051 [0.3622, 0.3861],
1052 [0.3099, 0.2502],
1053 [0.2718, 0.1604],
1054 [0.3045, 0.1905],
1055 [0.2731, 0.1738],
1056 [0.3682, 0.2983],
1057 [0.2862, 0.2260],
1058 [0.4240, 0.3302],
1059 [0.2657, 0.2528],
1060 [0.2559, 0.1730],
1061 [0.3491, 0.2872],
1062 [0.4073, 0.2235],
1063 [0.0794, 0.7385],
1064 [0.4001, 0.3263],
1065 [0.3546, 0.5490],
1066 [0.3270, 0.4288],
1067 [0.3943, 0.4264],
1068 [0.5130, 0.1893],
1069 [0.3806, 0.3294],
1070 [0.2311, 0.2010],
1071 [0.2816, 0.6563],
1072 [0.3990, 0.2708],
1073 [0.5660, 0.3795],
1074 [0.4581, 0.2549],
1075 [0.3495, 0.3226],
1076 [0.1340, 0.6871],
1077 [0.4574, 0.5062],
1078 [0.0329, 0.7358],
1079 [0.3699, 0.3586],
1080 [0.2419, 0.3352],
1081 [0.3050, 0.2967],
1082 [0.3100, 0.4018],
1083 [0.3470, 0.2259],
1084 [0.4184, 0.4568],
1085 [0.1341, 0.6420],
1086 [0.5456, 0.4040],
1087 [0.2080, 0.2789],
1088 [0.5071, 0.3777],
1089 [0.4617, 0.2506],
1090 [0.4875, 0.3123],
1091 [0.2922, 0.1106],
1092 [0.2638, 0.2624],
1093 [0.0925, 0.4275],
1094 [0.1188, 0.6918],
1095 [0.0476, 0.3458],
1096 [0.3711, 0.1449],
1097 [0.2005, 0.5759],
1098 [0.1326, 0.2784],
1099 [0.2671, 0.2998],
1100 [0.3490, 0.2570],
1101 [0.3038, 0.1500],
1102 [0.5422, 0.4141],
1103 [0.3515, 0.3024],
1104 [0.3850, 0.4120],
1105 [0.4320, 0.3118],
1106]
1109class TestMunsellValuePriest1920:
1110 """
1111 Define :func:`colour.notation.munsell.munsell_value_Priest1920` definition
1112 unit tests methods.
1113 """
1115 def test_munsell_value_Priest1920(self) -> None:
1116 """
1117 Test :func:`colour.notation.munsell.munsell_value_Priest1920`
1118 definition.
1119 """
1121 np.testing.assert_allclose(
1122 munsell_value_Priest1920(12.23634268),
1123 3.498048410185314,
1124 atol=TOLERANCE_ABSOLUTE_TESTS,
1125 )
1127 np.testing.assert_allclose(
1128 munsell_value_Priest1920(22.89399987),
1129 4.7847674833788947,
1130 atol=TOLERANCE_ABSOLUTE_TESTS,
1131 )
1133 np.testing.assert_allclose(
1134 munsell_value_Priest1920(6.29022535),
1135 2.5080321668591092,
1136 atol=TOLERANCE_ABSOLUTE_TESTS,
1137 )
1139 def test_n_dimensional_munsell_value_Priest1920(self) -> None:
1140 """
1141 Test :func:`colour.notation.munsell.munsell_value_Priest1920`
1142 definition n-dimensional arrays support.
1143 """
1145 Y = 12.23634268
1146 V = munsell_value_Priest1920(Y)
1148 V = np.tile(V, 6)
1149 Y = np.tile(Y, 6)
1150 np.testing.assert_allclose(
1151 munsell_value_Priest1920(Y), V, atol=TOLERANCE_ABSOLUTE_TESTS
1152 )
1154 V = np.reshape(V, (2, 3))
1155 Y = np.reshape(Y, (2, 3))
1156 np.testing.assert_allclose(
1157 munsell_value_Priest1920(Y), V, atol=TOLERANCE_ABSOLUTE_TESTS
1158 )
1160 V = np.reshape(V, (2, 3, 1))
1161 Y = np.reshape(Y, (2, 3, 1))
1162 np.testing.assert_allclose(
1163 munsell_value_Priest1920(Y), V, atol=TOLERANCE_ABSOLUTE_TESTS
1164 )
1166 def test_domain_range_scale_munsell_value_Priest1920(self) -> None:
1167 """
1168 Test :func:`colour.notation.munsell.munsell_value_Priest1920`
1169 definition domain and range scale support.
1170 """
1172 Y = 12.23634268
1173 V = munsell_value_Priest1920(Y)
1175 d_r = (("reference", 1, 1), ("1", 0.01, 0.1), ("100", 1, 10))
1176 for scale, factor_a, factor_b in d_r:
1177 with domain_range_scale(scale):
1178 np.testing.assert_allclose(
1179 munsell_value_Priest1920(Y * factor_a),
1180 V * factor_b,
1181 atol=TOLERANCE_ABSOLUTE_TESTS,
1182 )
1184 @ignore_numpy_errors
1185 def test_nan_munsell_value_Priest1920(self) -> None:
1186 """
1187 Test :func:`colour.notation.munsell.munsell_value_Priest1920`
1188 definition nan support.
1189 """
1191 munsell_value_Priest1920(np.array([-1.0, 0.0, 1.0, -np.inf, np.inf, np.nan]))
1194class TestMunsellValueMunsell1933:
1195 """
1196 Define :func:`colour.notation.munsell.munsell_value_Munsell1933`
1197 definition unit tests methods.
1198 """
1200 def test_munsell_value_Munsell1933(self) -> None:
1201 """
1202 Test :func:`colour.notation.munsell.munsell_value_Munsell1933`
1203 definition.
1204 """
1206 np.testing.assert_allclose(
1207 munsell_value_Munsell1933(12.23634268),
1208 4.1627702416858083,
1209 atol=TOLERANCE_ABSOLUTE_TESTS,
1210 )
1212 np.testing.assert_allclose(
1213 munsell_value_Munsell1933(22.89399987),
1214 5.5914543020790592,
1215 atol=TOLERANCE_ABSOLUTE_TESTS,
1216 )
1218 np.testing.assert_allclose(
1219 munsell_value_Munsell1933(6.29022535),
1220 3.0141971134091761,
1221 atol=TOLERANCE_ABSOLUTE_TESTS,
1222 )
1224 def test_n_dimensional_munsell_value_Munsell1933(self) -> None:
1225 """
1226 Test :func:`colour.notation.munsell.munsell_value_Munsell1933`
1227 definition n-dimensional arrays support.
1228 """
1230 Y = 12.23634268
1231 V = munsell_value_Munsell1933(Y)
1233 V = np.tile(V, 6)
1234 Y = np.tile(Y, 6)
1235 np.testing.assert_allclose(
1236 munsell_value_Munsell1933(Y), V, atol=TOLERANCE_ABSOLUTE_TESTS
1237 )
1239 V = np.reshape(V, (2, 3))
1240 Y = np.reshape(Y, (2, 3))
1241 np.testing.assert_allclose(
1242 munsell_value_Munsell1933(Y), V, atol=TOLERANCE_ABSOLUTE_TESTS
1243 )
1245 V = np.reshape(V, (2, 3, 1))
1246 Y = np.reshape(Y, (2, 3, 1))
1247 np.testing.assert_allclose(
1248 munsell_value_Munsell1933(Y), V, atol=TOLERANCE_ABSOLUTE_TESTS
1249 )
1251 def test_domain_range_scale_munsell_value_Munsell1933(self) -> None:
1252 """
1253 Test :func:`colour.notation.munsell.munsell_value_Munsell1933`
1254 definition domain and range scale support.
1255 """
1257 Y = 12.23634268
1258 V = munsell_value_Munsell1933(Y)
1260 d_r = (("reference", 1, 1), ("1", 0.01, 0.1), ("100", 1, 10))
1261 for scale, factor_a, factor_b in d_r:
1262 with domain_range_scale(scale):
1263 np.testing.assert_allclose(
1264 munsell_value_Munsell1933(Y * factor_a),
1265 V * factor_b,
1266 atol=TOLERANCE_ABSOLUTE_TESTS,
1267 )
1269 @ignore_numpy_errors
1270 def test_nan_munsell_value_Munsell1933(self) -> None:
1271 """
1272 Test :func:`colour.notation.munsell.munsell_value_Munsell1933`
1273 definition nan support.
1274 """
1276 munsell_value_Munsell1933(np.array([-1.0, 0.0, 1.0, -np.inf, np.inf, np.nan]))
1279class TestMunsellValueMoon1943:
1280 """
1281 Define :func:`colour.notation.munsell.munsell_value_Moon1943` definition
1282 unit tests methods.
1283 """
1285 def test_munsell_value_Moon1943(self) -> None:
1286 """
1287 Test :func:`colour.notation.munsell.munsell_value_Moon1943`
1288 definition.
1289 """
1291 np.testing.assert_allclose(
1292 munsell_value_Moon1943(12.23634268),
1293 4.0688120634976421,
1294 atol=TOLERANCE_ABSOLUTE_TESTS,
1295 )
1297 np.testing.assert_allclose(
1298 munsell_value_Moon1943(22.89399987),
1299 5.3133627855494412,
1300 atol=TOLERANCE_ABSOLUTE_TESTS,
1301 )
1303 np.testing.assert_allclose(
1304 munsell_value_Moon1943(6.29022535),
1305 3.0645015037679695,
1306 atol=TOLERANCE_ABSOLUTE_TESTS,
1307 )
1309 def test_n_dimensional_munsell_value_Moon1943(self) -> None:
1310 """
1311 Test :func:`colour.notation.munsell.munsell_value_Moon1943`
1312 definition n-dimensional arrays support.
1313 """
1315 Y = 12.23634268
1316 V = munsell_value_Moon1943(Y)
1318 V = np.tile(V, 6)
1319 Y = np.tile(Y, 6)
1320 np.testing.assert_allclose(
1321 munsell_value_Moon1943(Y), V, atol=TOLERANCE_ABSOLUTE_TESTS
1322 )
1324 V = np.reshape(V, (2, 3))
1325 Y = np.reshape(Y, (2, 3))
1326 np.testing.assert_allclose(
1327 munsell_value_Moon1943(Y), V, atol=TOLERANCE_ABSOLUTE_TESTS
1328 )
1330 V = np.reshape(V, (2, 3, 1))
1331 Y = np.reshape(Y, (2, 3, 1))
1332 np.testing.assert_allclose(
1333 munsell_value_Moon1943(Y), V, atol=TOLERANCE_ABSOLUTE_TESTS
1334 )
1336 def test_domain_range_scale_munsell_value_Moon1943(self) -> None:
1337 """
1338 Test :func:`colour.notation.munsell.munsell_value_Moon1943`
1339 definition domain and range scale support.
1340 """
1342 Y = 12.23634268
1343 V = munsell_value_Moon1943(Y)
1345 d_r = (("reference", 1, 1), ("1", 0.01, 0.1), ("100", 1, 10))
1346 for scale, factor_a, factor_b in d_r:
1347 with domain_range_scale(scale):
1348 np.testing.assert_allclose(
1349 munsell_value_Moon1943(Y * factor_a),
1350 V * factor_b,
1351 atol=TOLERANCE_ABSOLUTE_TESTS,
1352 )
1354 @ignore_numpy_errors
1355 def test_nan_munsell_value_Moon1943(self) -> None:
1356 """
1357 Test :func:`colour.notation.munsell.munsell_value_Moon1943`
1358 definition nan support.
1359 """
1361 munsell_value_Moon1943(np.array([-1.0, 0.0, 1.0, -np.inf, np.inf, np.nan]))
1364class TestMunsellValueSaunderson1944:
1365 """
1366 Define :func:`colour.notation.munsell.munsell_value_Saunderson1944`
1367 definition unit tests methods.
1368 """
1370 def test_munsell_value_Saunderson1944(self) -> None:
1371 """
1372 Test :func:`colour.notation.munsell.munsell_value_Saunderson1944`
1373 definition.
1374 """
1376 np.testing.assert_allclose(
1377 munsell_value_Saunderson1944(12.23634268),
1378 4.0444736723175119,
1379 atol=TOLERANCE_ABSOLUTE_TESTS,
1380 )
1382 np.testing.assert_allclose(
1383 munsell_value_Saunderson1944(22.89399987),
1384 5.3783324022305923,
1385 atol=TOLERANCE_ABSOLUTE_TESTS,
1386 )
1388 np.testing.assert_allclose(
1389 munsell_value_Saunderson1944(6.29022535),
1390 2.9089633927316823,
1391 atol=TOLERANCE_ABSOLUTE_TESTS,
1392 )
1394 def test_n_dimensional_munsell_value_Saunderson1944(self) -> None:
1395 """
1396 Test :func:`colour.notation.munsell.munsell_value_Saunderson1944`
1397 definition n-dimensional arrays support.
1398 """
1400 Y = 12.23634268
1401 V = munsell_value_Saunderson1944(Y)
1403 V = np.tile(V, 6)
1404 Y = np.tile(Y, 6)
1405 np.testing.assert_allclose(
1406 munsell_value_Saunderson1944(Y), V, atol=TOLERANCE_ABSOLUTE_TESTS
1407 )
1409 V = np.reshape(V, (2, 3))
1410 Y = np.reshape(Y, (2, 3))
1411 np.testing.assert_allclose(
1412 munsell_value_Saunderson1944(Y), V, atol=TOLERANCE_ABSOLUTE_TESTS
1413 )
1415 V = np.reshape(V, (2, 3, 1))
1416 Y = np.reshape(Y, (2, 3, 1))
1417 np.testing.assert_allclose(
1418 munsell_value_Saunderson1944(Y), V, atol=TOLERANCE_ABSOLUTE_TESTS
1419 )
1421 def test_domain_range_scale_munsell_value_Saunderson1944(self) -> None:
1422 """
1423 Test :func:`colour.notation.munsell.munsell_value_Saunderson1944`
1424 definition domain and range scale support.
1425 """
1427 Y = 12.23634268
1428 V = munsell_value_Saunderson1944(Y)
1430 d_r = (("reference", 1, 1), ("1", 0.01, 0.1), ("100", 1, 10))
1431 for scale, factor_a, factor_b in d_r:
1432 with domain_range_scale(scale):
1433 np.testing.assert_allclose(
1434 munsell_value_Saunderson1944(Y * factor_a),
1435 V * factor_b,
1436 atol=TOLERANCE_ABSOLUTE_TESTS,
1437 )
1439 @ignore_numpy_errors
1440 def test_nan_munsell_value_Saunderson1944(self) -> None:
1441 """
1442 Test :func:`colour.notation.munsell.munsell_value_Saunderson1944`
1443 definition nan support.
1444 """
1446 munsell_value_Saunderson1944(
1447 np.array([-1.0, 0.0, 1.0, -np.inf, np.inf, np.nan])
1448 )
1451class TestMunsellValueLadd1955:
1452 """
1453 Define :func:`colour.notation.munsell.munsell_value_Ladd1955` definition
1454 unit tests methods.
1455 """
1457 def test_munsell_value_Ladd1955(self) -> None:
1458 """
1459 Test :func:`colour.notation.munsell.munsell_value_Ladd1955`
1460 definition.
1461 """
1463 np.testing.assert_allclose(
1464 munsell_value_Ladd1955(12.23634268),
1465 4.0511633044287088,
1466 atol=TOLERANCE_ABSOLUTE_TESTS,
1467 )
1469 np.testing.assert_allclose(
1470 munsell_value_Ladd1955(22.89399987),
1471 5.3718647913936772,
1472 atol=TOLERANCE_ABSOLUTE_TESTS,
1473 )
1475 np.testing.assert_allclose(
1476 munsell_value_Ladd1955(6.29022535),
1477 2.9198269939751613,
1478 atol=TOLERANCE_ABSOLUTE_TESTS,
1479 )
1481 def test_n_dimensional_munsell_value_Ladd1955(self) -> None:
1482 """
1483 Test :func:`colour.notation.munsell.munsell_value_Ladd1955`
1484 definition n-dimensional arrays support.
1485 """
1487 Y = 12.23634268
1488 V = munsell_value_Ladd1955(Y)
1490 V = np.tile(V, 6)
1491 Y = np.tile(Y, 6)
1492 np.testing.assert_allclose(
1493 munsell_value_Ladd1955(Y), V, atol=TOLERANCE_ABSOLUTE_TESTS
1494 )
1496 V = np.reshape(V, (2, 3))
1497 Y = np.reshape(Y, (2, 3))
1498 np.testing.assert_allclose(
1499 munsell_value_Ladd1955(Y), V, atol=TOLERANCE_ABSOLUTE_TESTS
1500 )
1502 V = np.reshape(V, (2, 3, 1))
1503 Y = np.reshape(Y, (2, 3, 1))
1504 np.testing.assert_allclose(
1505 munsell_value_Ladd1955(Y), V, atol=TOLERANCE_ABSOLUTE_TESTS
1506 )
1508 def test_domain_range_scale_munsell_value_Ladd1955(self) -> None:
1509 """
1510 Test :func:`colour.notation.munsell.munsell_value_Ladd1955`
1511 definition domain and range scale support.
1512 """
1514 Y = 12.23634268
1515 V = munsell_value_Ladd1955(Y)
1517 d_r = (("reference", 1, 1), ("1", 0.01, 0.1), ("100", 1, 10))
1518 for scale, factor_a, factor_b in d_r:
1519 with domain_range_scale(scale):
1520 np.testing.assert_allclose(
1521 munsell_value_Ladd1955(Y * factor_a),
1522 V * factor_b,
1523 atol=TOLERANCE_ABSOLUTE_TESTS,
1524 )
1526 @ignore_numpy_errors
1527 def test_nan_munsell_value_Ladd1955(self) -> None:
1528 """
1529 Test :func:`colour.notation.munsell.munsell_value_Ladd1955`
1530 definition nan support.
1531 """
1533 munsell_value_Ladd1955(np.array([-1.0, 0.0, 1.0, -np.inf, np.inf, np.nan]))
1536class TestMunsellValueMcCamy1992:
1537 """
1538 Define :func:`colour.notation.munsell.munsell_value_McCamy1987` definition
1539 unit tests methods.
1540 """
1542 def test_munsell_value_McCamy1987(self) -> None:
1543 """
1544 Test :func:`colour.notation.munsell.munsell_value_McCamy1987`
1545 definition.
1546 """
1548 np.testing.assert_allclose(
1549 munsell_value_McCamy1987(12.23634268),
1550 4.081434853194113,
1551 atol=TOLERANCE_ABSOLUTE_TESTS,
1552 )
1554 np.testing.assert_allclose(
1555 munsell_value_McCamy1987(22.89399987),
1556 5.394083970919982,
1557 atol=TOLERANCE_ABSOLUTE_TESTS,
1558 )
1560 np.testing.assert_allclose(
1561 munsell_value_McCamy1987(6.29022535),
1562 2.9750160800320096,
1563 atol=TOLERANCE_ABSOLUTE_TESTS,
1564 )
1566 def test_n_dimensional_munsell_value_McCamy1987(self) -> None:
1567 """
1568 Test :func:`colour.notation.munsell.munsell_value_McCamy1987`
1569 definition n-dimensional arrays support.
1570 """
1572 Y = 12.23634268
1573 V = munsell_value_McCamy1987(Y)
1575 V = np.tile(V, 6)
1576 Y = np.tile(Y, 6)
1577 np.testing.assert_allclose(
1578 munsell_value_McCamy1987(Y), V, atol=TOLERANCE_ABSOLUTE_TESTS
1579 )
1581 V = np.reshape(V, (2, 3))
1582 Y = np.reshape(Y, (2, 3))
1583 np.testing.assert_allclose(
1584 munsell_value_McCamy1987(Y), V, atol=TOLERANCE_ABSOLUTE_TESTS
1585 )
1587 V = np.reshape(V, (2, 3, 1))
1588 Y = np.reshape(Y, (2, 3, 1))
1589 np.testing.assert_allclose(
1590 munsell_value_McCamy1987(Y), V, atol=TOLERANCE_ABSOLUTE_TESTS
1591 )
1593 def test_domain_range_scale_munsell_value_McCamy1987(self) -> None:
1594 """
1595 Test :func:`colour.notation.munsell.munsell_value_McCamy1987`
1596 definition domain and range scale support.
1597 """
1599 Y = 12.23634268
1600 V = munsell_value_McCamy1987(Y)
1602 d_r = (("reference", 1, 1), ("1", 0.01, 0.1), ("100", 1, 10))
1603 for scale, factor_a, factor_b in d_r:
1604 with domain_range_scale(scale):
1605 np.testing.assert_allclose(
1606 munsell_value_McCamy1987(Y * factor_a),
1607 V * factor_b,
1608 atol=TOLERANCE_ABSOLUTE_TESTS,
1609 )
1611 @ignore_numpy_errors
1612 def test_nan_munsell_value_McCamy1987(self) -> None:
1613 """
1614 Test :func:`colour.notation.munsell.munsell_value_McCamy1987`
1615 definition nan support.
1616 """
1618 munsell_value_McCamy1987(np.array([-1.0, 0.0, 1.0, -np.inf, np.inf, np.nan]))
1621class TestMunsellValueASTMD1535:
1622 """
1623 Define :func:`colour.notation.munsell.munsell_value_ASTMD1535`
1624 definition unit tests methods.
1625 """
1627 def test_munsell_value_ASTMD1535(self) -> None:
1628 """
1629 Test :func:`colour.notation.munsell.munsell_value_ASTMD1535`
1630 definition.
1631 """
1633 np.testing.assert_allclose(
1634 munsell_value_ASTMD1535(12.23634268),
1635 4.0824437076525664,
1636 atol=TOLERANCE_ABSOLUTE_TESTS,
1637 )
1639 np.testing.assert_allclose(
1640 munsell_value_ASTMD1535(22.89399987),
1641 5.3913268228155395,
1642 atol=TOLERANCE_ABSOLUTE_TESTS,
1643 )
1645 np.testing.assert_allclose(
1646 munsell_value_ASTMD1535(6.29022535),
1647 2.9761930839606454,
1648 atol=TOLERANCE_ABSOLUTE_TESTS,
1649 )
1651 def test_n_dimensional_munsell_value_ASTMD1535(self) -> None:
1652 """
1653 Test :func:`colour.notation.munsell.munsell_value_ASTMD1535`
1654 definition n-dimensional arrays support.
1655 """
1657 Y = 12.23634268
1658 V = munsell_value_ASTMD1535(Y)
1660 V = np.tile(V, 6)
1661 Y = np.tile(Y, 6)
1662 np.testing.assert_allclose(
1663 munsell_value_ASTMD1535(Y), V, atol=TOLERANCE_ABSOLUTE_TESTS
1664 )
1666 V = np.reshape(V, (2, 3))
1667 Y = np.reshape(Y, (2, 3))
1668 np.testing.assert_allclose(
1669 munsell_value_ASTMD1535(Y), V, atol=TOLERANCE_ABSOLUTE_TESTS
1670 )
1672 V = np.reshape(V, (2, 3, 1))
1673 Y = np.reshape(Y, (2, 3, 1))
1674 np.testing.assert_allclose(
1675 munsell_value_ASTMD1535(Y), V, atol=TOLERANCE_ABSOLUTE_TESTS
1676 )
1678 def test_domain_range_scale_munsell_value_ASTMD1535(self) -> None:
1679 """
1680 Test :func:`colour.notation.munsell.munsell_value_ASTMD1535`
1681 definition domain and range scale support.
1682 """
1684 Y = 12.23634268
1685 V = munsell_value_ASTMD1535(Y)
1687 d_r = (("reference", 1, 1), ("1", 0.01, 0.1), ("100", 1, 10))
1688 for scale, factor_a, factor_b in d_r:
1689 with domain_range_scale(scale):
1690 np.testing.assert_allclose(
1691 munsell_value_ASTMD1535(Y * factor_a),
1692 V * factor_b,
1693 atol=TOLERANCE_ABSOLUTE_TESTS,
1694 )
1696 @ignore_numpy_errors
1697 def test_nan_munsell_value_ASTMD1535(self) -> None:
1698 """
1699 Test :func:`colour.notation.munsell.munsell_value_ASTMD1535`
1700 definition nan support.
1701 """
1703 munsell_value_ASTMD1535(np.array([-1.0, 0.0, 1.0, -np.inf, np.inf, np.nan]))
1706class TestMunsellSpecification_to_xyY:
1707 """
1708 Define :func:`colour.notation.munsell.munsell_specification_to_xyY`
1709 definition unit tests methods.
1710 """
1712 def test_munsell_specification_to_xyY(self) -> None:
1713 """
1714 Test :func:`colour.notation.munsell.munsell_specification_to_xyY`
1715 definition.
1716 """
1718 specification, xyY = (
1719 as_float_array(list(MUNSELL_SPECIFICATIONS[..., 0])),
1720 as_float_array(list(MUNSELL_SPECIFICATIONS[..., 1])),
1721 )
1722 np.testing.assert_allclose(
1723 munsell_specification_to_xyY(specification),
1724 xyY,
1725 atol=TOLERANCE_ABSOLUTE_TESTS,
1726 )
1728 specification, xyY = (
1729 as_float_array(list(MUNSELL_GREYS_SPECIFICATIONS[..., 0])),
1730 as_float_array(list(MUNSELL_GREYS_SPECIFICATIONS[..., 1])),
1731 )
1732 specification = np.squeeze(specification)
1733 nan_array = np.full(specification.shape, np.nan)
1734 specification = tstack([nan_array, specification, nan_array, nan_array])
1736 np.testing.assert_allclose(
1737 munsell_specification_to_xyY(specification),
1738 xyY,
1739 atol=TOLERANCE_ABSOLUTE_TESTS,
1740 )
1742 def test_n_dimensional_munsell_specification_to_xyY(self) -> None:
1743 """
1744 Test :func:`colour.notation.munsell.munsell_specification_to_xyY`
1745 definition n-dimensional arrays support.
1746 """
1748 specification = np.array([7.18927191, 5.34025196, 16.05861170, 3.00000000])
1749 xyY = munsell_specification_to_xyY(specification)
1751 specification = np.tile(specification, (6, 1))
1752 xyY = np.tile(xyY, (6, 1))
1753 np.testing.assert_allclose(
1754 munsell_specification_to_xyY(specification),
1755 xyY,
1756 atol=TOLERANCE_ABSOLUTE_TESTS,
1757 )
1759 specification = np.reshape(specification, (2, 3, 4))
1760 xyY = np.reshape(xyY, (2, 3, 3))
1761 np.testing.assert_allclose(
1762 munsell_specification_to_xyY(specification),
1763 xyY,
1764 atol=TOLERANCE_ABSOLUTE_TESTS,
1765 )
1767 specification = np.array([np.nan, 8.9, np.nan, np.nan])
1768 xyY = munsell_specification_to_xyY(specification)
1770 specification = np.tile(specification, (6, 1))
1771 xyY = np.tile(xyY, (6, 1))
1772 np.testing.assert_allclose(
1773 munsell_specification_to_xyY(specification),
1774 xyY,
1775 atol=TOLERANCE_ABSOLUTE_TESTS,
1776 )
1778 specification = np.reshape(specification, (2, 3, 4))
1779 xyY = np.reshape(xyY, (2, 3, 3))
1780 np.testing.assert_allclose(
1781 munsell_specification_to_xyY(specification),
1782 xyY,
1783 atol=TOLERANCE_ABSOLUTE_TESTS,
1784 )
1786 def test_domain_range_scale_munsell_specification_to_xyY(self) -> None:
1787 """
1788 Test :func:`colour.notation.munsell.munsell_specification_to_xyY`
1789 definition domain and range scale support.
1790 """
1792 specification = np.array([7.18927191, 5.34025196, 16.05861170, 3.00000000])
1793 xyY = munsell_specification_to_xyY(specification)
1795 d_r = (
1796 ("reference", 1, 1),
1797 ("1", np.array([0.1, 0.1, 1 / 50, 0.1]), 1),
1798 ("100", np.array([10, 10, 2, 10]), np.array([1, 1, 100])),
1799 )
1800 for scale, factor_a, factor_b in d_r:
1801 with domain_range_scale(scale):
1802 np.testing.assert_allclose(
1803 munsell_specification_to_xyY(specification * factor_a),
1804 xyY * factor_b,
1805 atol=TOLERANCE_ABSOLUTE_TESTS,
1806 )
1808 @ignore_numpy_errors
1809 def test_nan_munsell_specification_to_xyY(self) -> None:
1810 """
1811 Test :func:`colour.notation.munsell.munsell_specification_to_xyY`
1812 definition nan support.
1813 """
1815 cases = [-1.0, 0.0, 1.0, -np.inf, np.inf, np.nan]
1816 cases = np.array(list(set(product(cases, repeat=4))))
1817 for case in cases:
1818 with contextlib.suppress(AssertionError, TypeError, ValueError):
1819 munsell_specification_to_xyY(case)
1822class TestMunsellColour_to_xyY:
1823 """
1824 Define :func:`colour.notation.munsell.munsell_colour_to_xyY` definition
1825 unit tests methods.
1826 """
1828 def test_domain_range_scale_munsell_colour_to_xyY(self) -> None:
1829 """
1830 Test :func:`colour.notation.munsell.munsell_colour_to_xyY` definition
1831 domain and range scale support.
1832 """
1834 munsell_colour = "4.2YR 8.1/5.3"
1835 xyY = munsell_colour_to_xyY(munsell_colour)
1837 d_r = (
1838 ("reference", 1),
1839 ("1", 1),
1840 ("100", np.array([1, 1, 100])),
1841 )
1842 for scale, factor in d_r:
1843 with domain_range_scale(scale):
1844 np.testing.assert_allclose(
1845 munsell_colour_to_xyY(munsell_colour),
1846 xyY * factor,
1847 atol=TOLERANCE_ABSOLUTE_TESTS,
1848 )
1850 def test_n_dimensional_munsell_colour_to_xyY(self) -> None:
1851 """
1852 Test :func:`colour.notation.munsell.munsell_colour_to_xyY` definition
1853 n-dimensional arrays support.
1854 """
1856 munsell_colour = "4.2YR 8.1/5.3"
1857 xyY = munsell_colour_to_xyY(munsell_colour)
1859 munsell_colour = np.tile(munsell_colour, 6)
1860 xyY = np.tile(xyY, (6, 1))
1861 np.testing.assert_allclose(
1862 munsell_colour_to_xyY(munsell_colour),
1863 xyY,
1864 atol=TOLERANCE_ABSOLUTE_TESTS,
1865 )
1867 munsell_colour = np.reshape(munsell_colour, (2, 3))
1868 xyY = np.reshape(xyY, (2, 3, 3))
1869 np.testing.assert_allclose(
1870 munsell_colour_to_xyY(munsell_colour),
1871 xyY,
1872 atol=TOLERANCE_ABSOLUTE_TESTS,
1873 )
1875 munsell_colour = "N8.9"
1876 xyY = munsell_colour_to_xyY(munsell_colour)
1878 munsell_colour = np.tile(munsell_colour, 6)
1879 xyY = np.tile(xyY, (6, 1))
1880 np.testing.assert_allclose(
1881 munsell_colour_to_xyY(munsell_colour),
1882 xyY,
1883 atol=TOLERANCE_ABSOLUTE_TESTS,
1884 )
1886 munsell_colour = np.reshape(munsell_colour, (2, 3))
1887 xyY = np.reshape(xyY, (2, 3, 3))
1888 np.testing.assert_allclose(
1889 munsell_colour_to_xyY(munsell_colour),
1890 xyY,
1891 atol=TOLERANCE_ABSOLUTE_TESTS,
1892 )
1895class TestxyY_to_munsell_specification:
1896 """
1897 Define :func:`colour.notation.munsell.xyY_to_munsell_specification`
1898 definition unit tests methods.
1899 """
1901 def test_xyY_to_munsell_specification(self) -> None:
1902 """
1903 Test :func:`colour.notation.munsell.xyY_to_munsell_specification`
1904 definition.
1905 """
1907 if not is_scipy_installed(): # pragma: no cover
1908 return
1910 specification, xyY = (
1911 as_float_array(list(MUNSELL_SPECIFICATIONS[..., 0])),
1912 as_float_array(list(MUNSELL_SPECIFICATIONS[..., 1])),
1913 )
1915 np.testing.assert_allclose(
1916 xyY_to_munsell_specification(xyY),
1917 specification,
1918 atol=5e-5,
1919 )
1921 specification, xyY = (
1922 as_float_array(list(MUNSELL_GREYS_SPECIFICATIONS[..., 0])),
1923 as_float_array(list(MUNSELL_GREYS_SPECIFICATIONS[..., 1])),
1924 )
1925 specification = np.squeeze(specification)
1926 nan_array = np.full(specification.shape, np.nan)
1927 specification = tstack([nan_array, specification, nan_array, nan_array])
1929 np.testing.assert_allclose(
1930 xyY_to_munsell_specification(xyY),
1931 specification,
1932 atol=0.00001,
1933 )
1935 def test_n_dimensional_xyY_to_munsell_specification(self) -> None:
1936 """
1937 Test :func:`colour.notation.munsell.xyY_to_munsell_specification`
1938 definition n-dimensional arrays support.
1939 """
1941 if not is_scipy_installed(): # pragma: no cover
1942 return
1944 xyY = [0.16623068, 0.45684550, 0.22399519]
1945 specification = xyY_to_munsell_specification(xyY)
1947 xyY = np.tile(xyY, (6, 1))
1948 specification = np.tile(specification, (6, 1))
1949 np.testing.assert_allclose(
1950 xyY_to_munsell_specification(xyY),
1951 specification,
1952 atol=TOLERANCE_ABSOLUTE_TESTS,
1953 )
1955 xyY = np.reshape(xyY, (2, 3, 3))
1956 specification = np.reshape(specification, (2, 3, 4))
1957 np.testing.assert_allclose(
1958 xyY_to_munsell_specification(xyY),
1959 specification,
1960 atol=TOLERANCE_ABSOLUTE_TESTS,
1961 )
1963 def test_raise_exception_xyY_to_munsell_specification(self) -> None:
1964 """
1965 Test :func:`colour.notation.munsell.xyY_to_munsell_specification`
1966 definition raised exception.
1967 """
1969 if not is_scipy_installed(): # pragma: no cover
1970 return
1972 pytest.raises(
1973 RuntimeError,
1974 xyY_to_munsell_specification,
1975 np.array([0.90615118, 0.57945103, 0.91984064]),
1976 )
1978 def test_domain_range_scale_xyY_to_munsell_specification(self) -> None:
1979 """
1980 Test :func:`colour.notation.munsell.xyY_to_munsell_specification`
1981 definition domain and range scale support.
1982 """
1984 if not is_scipy_installed(): # pragma: no cover
1985 return
1987 xyY = [0.16623068, 0.45684550, 0.22399519]
1988 specification = xyY_to_munsell_specification(xyY)
1990 d_r = (
1991 ("reference", 1, 1),
1992 ("1", 1, np.array([0.1, 0.1, 1 / 50, 0.1])),
1993 ("100", np.array([1, 1, 100]), np.array([10, 10, 2, 10])),
1994 )
1995 for scale, factor_a, factor_b in d_r:
1996 with domain_range_scale(scale):
1997 np.testing.assert_allclose(
1998 xyY_to_munsell_specification(xyY * factor_a),
1999 specification * factor_b,
2000 atol=2e-5,
2001 )
2003 @ignore_numpy_errors
2004 def test_nan_xyY_to_munsell_specification(self) -> None:
2005 """
2006 Test :func:`colour.notation.munsell.xyY_to_munsell_specification`
2007 definition nan support.
2008 """
2010 if not is_scipy_installed(): # pragma: no cover
2011 return
2013 cases = [-1.0, 0.0, 1.0, -np.inf, np.inf, np.nan]
2014 cases = np.array(list(set(product(cases, repeat=3))))
2015 for case in cases:
2016 with contextlib.suppress(AssertionError, TypeError, ValueError):
2017 xyY_to_munsell_specification(case)
2020class TestxyY_to_munsell_colour:
2021 """
2022 Define :func:`colour.notation.munsell.xyY_to_munsell_colour` definition
2023 unit tests methods.
2024 """
2026 def test_domain_range_scale_xyY_to_munsell_colour(self) -> None:
2027 """
2028 Test :func:`colour.notation.munsell.xyY_to_munsell_colour` definition
2029 domain and range scale support.
2030 """
2032 if not is_scipy_installed(): # pragma: no cover
2033 return
2035 xyY = np.array([0.38736945, 0.35751656, 0.59362000])
2036 munsell_colour = xyY_to_munsell_colour(xyY)
2038 d_r = (
2039 ("reference", 1),
2040 ("1", 1),
2041 ("100", np.array([1, 1, 100])),
2042 )
2043 for scale, factor in d_r:
2044 with domain_range_scale(scale):
2045 assert xyY_to_munsell_colour(xyY * factor) == munsell_colour
2047 def test_n_dimensional_xyY_to_munsell_colour(self) -> None:
2048 """
2049 Test :func:`colour.notation.munsell.xyY_to_munsell_colour` definition
2050 n-dimensional arrays support.
2051 """
2053 if not is_scipy_installed(): # pragma: no cover
2054 return
2056 xyY = [0.16623068, 0.45684550, 0.22399519]
2057 munsell_colour = xyY_to_munsell_colour(xyY)
2059 xyY = np.tile(xyY, (6, 1))
2060 munsell_colour = np.tile(munsell_colour, 6)
2061 np.testing.assert_equal(xyY_to_munsell_colour(xyY), munsell_colour)
2063 xyY = np.reshape(xyY, (2, 3, 3))
2064 munsell_colour = np.reshape(munsell_colour, (2, 3))
2065 np.testing.assert_equal(xyY_to_munsell_colour(xyY), munsell_colour)
2067 xyY = [*list(CCS_ILLUMINANT_MUNSELL), 1.0]
2068 munsell_colour = xyY_to_munsell_colour(xyY)
2070 xyY = np.tile(xyY, (6, 1))
2071 munsell_colour = np.tile(munsell_colour, 6)
2072 np.testing.assert_equal(xyY_to_munsell_colour(xyY), munsell_colour)
2074 xyY = np.reshape(xyY, (2, 3, 3))
2075 munsell_colour = np.reshape(munsell_colour, (2, 3))
2076 np.testing.assert_equal(xyY_to_munsell_colour(xyY), munsell_colour)
2079class TestParseMunsellColour:
2080 """
2081 Define :func:`colour.notation.munsell.parse_munsell_colour` definition
2082 unit tests methods.
2083 """
2085 def test_parse_munsell_colour(self) -> None:
2086 """
2087 Test :func:`colour.notation.munsell.is_grey_munsell_colour`
2088 definition.
2089 """
2091 np.testing.assert_allclose(
2092 parse_munsell_colour("N5.2"),
2093 np.array([np.nan, 5.2, np.nan, np.nan]),
2094 atol=TOLERANCE_ABSOLUTE_TESTS,
2095 )
2097 np.testing.assert_allclose(
2098 parse_munsell_colour("0YR 2.0/4.0"),
2099 np.array([0.0, 2.0, 4.0, 6]),
2100 atol=TOLERANCE_ABSOLUTE_TESTS,
2101 )
2103 np.testing.assert_allclose(
2104 parse_munsell_colour("4.2YR 8.1/5.3"),
2105 np.array([4.2, 8.1, 5.3, 6]),
2106 atol=TOLERANCE_ABSOLUTE_TESTS,
2107 )
2109 def test_raise_exception_parse_munsell_colour(self) -> None:
2110 """
2111 Test :func:`colour.notation.munsell.is_grey_munsell_colour`
2112 definition raised exception.
2113 """
2115 pytest.raises(ValueError, parse_munsell_colour, "4.2YQ 8.1/5.3")
2118class TestIsGreyMunsellColour:
2119 """
2120 Define :func:`colour.notation.munsell.is_grey_munsell_colour` definition
2121 unit tests methods.
2122 """
2124 def test_is_grey_munsell_colour(self) -> None:
2125 """
2126 Test :func:`colour.notation.munsell.is_grey_munsell_colour`
2127 definition.
2128 """
2130 assert is_grey_munsell_colour(5.2)
2132 assert not is_grey_munsell_colour(np.array([0.0, 2.0, 4.0, 6]))
2134 assert not is_grey_munsell_colour(np.array([4.2, 8.1, 5.3, 6]))
2136 assert is_grey_munsell_colour(np.array([np.nan, 0.5, np.nan, np.nan]))
2139class TestNormaliseMunsellSpecification:
2140 """
2141 Define :func:`colour.notation.munsell.normalise_munsell_specification`
2142 definition unit tests methods.
2143 """
2145 def test_normalise_munsell_specification(self) -> None:
2146 """
2147 Test :func:`colour.notation.munsell.normalise_munsell_specification`
2148 definition.
2149 """
2151 np.testing.assert_allclose(
2152 normalise_munsell_specification((0.0, 2.0, 4.0, 6)),
2153 np.array([10.0, 2.0, 4.0, 7]),
2154 atol=TOLERANCE_ABSOLUTE_TESTS,
2155 )
2157 np.testing.assert_allclose(
2158 normalise_munsell_specification((0.0, 2.0, 4.0, 8)),
2159 np.array([10.0, 2.0, 4.0, 9]),
2160 atol=TOLERANCE_ABSOLUTE_TESTS,
2161 )
2163 np.testing.assert_allclose(
2164 normalise_munsell_specification((0, 2.0, 4.0, 10)),
2165 np.array([10.0, 2.0, 4.0, 1]),
2166 atol=TOLERANCE_ABSOLUTE_TESTS,
2167 )
2169 np.testing.assert_allclose(
2170 normalise_munsell_specification(0.5),
2171 np.array([np.nan, 0.5, np.nan, np.nan]),
2172 atol=TOLERANCE_ABSOLUTE_TESTS,
2173 )
2176class TestMunsellColourToMunsellSpecification:
2177 """
2178 Define :func:`colour.notation.munsell.\
2179munsell_colour_to_munsell_specification` definition unit tests methods.
2180 """
2182 def test_munsell_colour_to_munsell_specification(self) -> None:
2183 """
2184 Test :func:`colour.notation.munsell.\
2185munsell_colour_to_munsell_specification` definition.
2186 """
2188 np.testing.assert_allclose(
2189 munsell_colour_to_munsell_specification("0.0YR 2.0/4.0"),
2190 np.array([10.0, 2.0, 4.0, 7]),
2191 atol=TOLERANCE_ABSOLUTE_TESTS,
2192 )
2194 np.testing.assert_allclose(
2195 munsell_colour_to_munsell_specification("0.0RP 2.0/4.0"),
2196 np.array([10.0, 2.0, 4.0, 9]),
2197 atol=TOLERANCE_ABSOLUTE_TESTS,
2198 )
2200 np.testing.assert_allclose(
2201 munsell_colour_to_munsell_specification("10.0B 2.0/4.0"),
2202 np.array([10.0, 2.0, 4.0, 1]),
2203 atol=TOLERANCE_ABSOLUTE_TESTS,
2204 )
2206 np.testing.assert_allclose(
2207 munsell_colour_to_munsell_specification("N5.2"),
2208 np.array([np.nan, 5.2, np.nan, np.nan]),
2209 atol=TOLERANCE_ABSOLUTE_TESTS,
2210 )
2212 np.testing.assert_allclose(
2213 munsell_colour_to_munsell_specification("0.0YR 2.0/0.0"),
2214 np.array([np.nan, 2.0, np.nan, np.nan]),
2215 atol=TOLERANCE_ABSOLUTE_TESTS,
2216 )
2219class TestMunsellSpecificationToMunsellColour:
2220 """
2221 Define :func:`colour.notation.munsell.\
2222munsell_specification_to_munsell_colour` definition unit tests methods.
2223 """
2225 def test_munsell_specification_to_munsell_colour(self) -> None:
2226 """
2227 Test :func:`colour.notation.munsell.\
2228munsell_specification_to_munsell_colour` definition.
2229 """
2231 assert (
2232 munsell_specification_to_munsell_colour(np.array([10.0, 2.0, 4.0, 7]))
2233 == "10.0R 2.0/4.0"
2234 )
2236 assert (
2237 munsell_specification_to_munsell_colour(np.array([10.0, 2.0, 4.0, 9]))
2238 == "10.0P 2.0/4.0"
2239 )
2241 assert (
2242 munsell_specification_to_munsell_colour(np.array([10.0, 2.0, 4.0, 1]))
2243 == "10.0B 2.0/4.0"
2244 )
2246 assert (
2247 munsell_specification_to_munsell_colour(
2248 np.array([np.nan, 5.2, np.nan, np.nan])
2249 )
2250 == "N5.2"
2251 )
2253 assert (
2254 munsell_specification_to_munsell_colour(np.array([0.0, 2.0, 4.0, 7]))
2255 == "10.0RP 2.0/4.0"
2256 )
2258 assert (
2259 munsell_specification_to_munsell_colour(np.array([10.0, 0.0, 4.0, 7]))
2260 == "N0.0"
2261 )
2264class Test_xyY_fromRenotation:
2265 """
2266 Define :func:`colour.notation.munsell.xyY_from_renotation` definition
2267 unit tests methods.
2268 """
2270 def test_xyY_from_renotation(self) -> None:
2271 """
2272 Test :func:`colour.notation.munsell.xyY_from_renotation`
2273 definition.
2274 """
2276 np.testing.assert_array_equal(
2277 xyY_from_renotation([2.5, 0.2, 2.0, 4]),
2278 np.array([0.713, 1.414, 0.237]),
2279 )
2281 np.testing.assert_array_equal(
2282 xyY_from_renotation([5.0, 0.2, 2.0, 4]),
2283 np.array([0.449, 1.145, 0.237]),
2284 )
2286 np.testing.assert_array_equal(
2287 xyY_from_renotation([7.5, 0.2, 2.0, 4]),
2288 np.array([0.262, 0.837, 0.237]),
2289 )
2292class TestIsSpecificationInRenotation:
2293 """
2294 Define :func:`colour.notation.munsell.is_specification_in_renotation`
2295 definition unit tests methods.
2296 """
2298 def test_is_specification_in_renotation(self) -> None:
2299 """
2300 Test :func:`colour.notation.munsell.is_specification_in_renotation`
2301 definition.
2302 """
2304 assert is_specification_in_renotation(np.array([2.5, 0.2, 2.0, 4]))
2306 assert is_specification_in_renotation(np.array([5.0, 0.2, 2.0, 4]))
2308 assert not is_specification_in_renotation(np.array([25.0, 0.2, 2.0, 4]))
2311class TestBoundingHuesFromRenotation:
2312 """
2313 Define :func:`colour.notation.munsell.bounding_hues_from_renotation`
2314 definition unit tests methods.
2315 """
2317 def test_bounding_hues_from_renotation(self) -> None:
2318 """
2319 Test :func:`colour.notation.munsell.bounding_hues_from_renotation`
2320 definition.
2321 """
2323 for i, (specification, _xyY) in enumerate(MUNSELL_SPECIFICATIONS):
2324 hue, _value, _chroma, code = specification
2325 np.testing.assert_array_equal(
2326 bounding_hues_from_renotation([hue, code]),
2327 MUNSELL_BOUNDING_HUES[i],
2328 )
2330 # Test hue == 0 case
2331 np.testing.assert_array_equal(
2332 bounding_hues_from_renotation([0.0, 1]),
2333 np.array([[10.0, 2.0], [10.0, 2.0]]),
2334 )
2337class TestHueToHueAngle:
2338 """
2339 Define :func:`colour.notation.munsell.hue_to_hue_angle` definition unit
2340 tests methods.
2341 """
2343 def test_hue_to_hue_angle(self) -> None:
2344 """Test :func:`colour.notation.munsell.hue_to_hue_angle` definition."""
2346 for hue, code, angle in MUNSELL_HUE_TO_ANGLE:
2347 assert hue_to_hue_angle([hue, code]) == angle
2350class TestHueAngleToHue:
2351 """
2352 Define :func:`colour.notation.munsell.hue_angle_to_hue` definition unit
2353 tests methods.
2354 """
2356 def test_hue_angle_to_hue(self) -> None:
2357 """Test :func:`colour.notation.munsell.hue_angle_to_hue` definition."""
2359 for hue, code, angle in MUNSELL_HUE_TO_ANGLE:
2360 np.testing.assert_array_equal(hue_angle_to_hue(angle), (hue, code))
2363class TestHueTo_ASTM_hue:
2364 """
2365 Define :func:`colour.notation.munsell.hue_to_ASTM_hue` definition unit
2366 tests methods.
2367 """
2369 def test_hue_to_ASTM_hue(self) -> None:
2370 """Test :func:`colour.notation.munsell.hue_to_ASTM_hue` definition."""
2372 for hue, code, angle in MUNSELL_HUE_TO_ASTM_HUE:
2373 assert hue_to_ASTM_hue([hue, code]) == angle
2376class TestInterpolationMethodFromRenotationOvoid:
2377 """
2378 Define :func:`colour.notation.munsell.\
2379interpolation_method_from_renotation_ovoid` definition unit tests methods.
2380 """
2382 def test_interpolation_method_from_renotation_ovoid(self) -> None:
2383 """
2384 Test :func:`colour.notation.munsell.\
2385interpolation_method_from_renotation_ovoid` definition.
2386 """
2388 for i, (specification, _xyY) in enumerate(MUNSELL_EVEN_SPECIFICATIONS):
2389 assert (
2390 interpolation_method_from_renotation_ovoid(specification)
2391 == MUNSELL_INTERPOLATION_METHODS[i]
2392 )
2394 assert (
2395 interpolation_method_from_renotation_ovoid(
2396 np.array([np.nan, 5.2, np.nan, np.nan])
2397 )
2398 is None
2399 )
2401 assert (
2402 interpolation_method_from_renotation_ovoid(np.array([2.5, 10.0, 2.0, 4]))
2403 is None
2404 )
2407class Test_xy_fromRenotationOvoid:
2408 """
2409 Define :func:`colour.notation.munsell.xy_from_renotation_ovoid` definition
2410 unit tests methods.
2411 """
2413 def test_xy_from_renotation_ovoid(self) -> None:
2414 """
2415 Test :func:`colour.notation.munsell.xy_from_renotation_ovoid`
2416 definition.
2417 """
2419 for i, (specification, _xyY) in enumerate(MUNSELL_EVEN_SPECIFICATIONS):
2420 if is_specification_in_renotation(specification):
2421 np.testing.assert_allclose(
2422 xy_from_renotation_ovoid(specification),
2423 MUNSELL_XY_FROM_RENOTATION_OVOID[i],
2424 atol=TOLERANCE_ABSOLUTE_TESTS,
2425 )
2427 # Test grey Munsell colour case (coverage for line 2347)
2428 np.testing.assert_allclose(
2429 xy_from_renotation_ovoid([np.nan, 8, np.nan, np.nan]),
2430 np.array([0.31006, 0.31616]),
2431 atol=0.00001,
2432 )
2435class TestLCHabToMunsellSpecification:
2436 """
2437 Define :func:`colour.notation.munsell.LCHab_to_munsell_specification`
2438 definition unit tests methods.
2439 """
2441 def test_LCHab_to_munsell_specification(self) -> None:
2442 """
2443 Test :func:`colour.notation.munsell.LCHab_to_munsell_specification`
2444 definition.
2445 """
2447 np.testing.assert_allclose(
2448 LCHab_to_munsell_specification(
2449 np.array([100.00000000, 21.57210357, 272.22819350])
2450 ),
2451 np.array([5.618942638888882, 10.0, 4.314420714000000, 10]),
2452 atol=TOLERANCE_ABSOLUTE_TESTS,
2453 )
2455 np.testing.assert_allclose(
2456 LCHab_to_munsell_specification(
2457 np.array([100.00000000, 426.67945353, 72.39590835])
2458 ),
2459 np.array([0.109974541666666, 10.0, 85.335890706000001, 5]),
2460 atol=TOLERANCE_ABSOLUTE_TESTS,
2461 )
2463 np.testing.assert_allclose(
2464 LCHab_to_munsell_specification(
2465 np.array([100.00000000, 74.05216981, 276.45318193])
2466 ),
2467 np.array([6.792550536111119, 10.0, 14.810433961999999, 10]),
2468 atol=TOLERANCE_ABSOLUTE_TESTS,
2469 )
2471 np.testing.assert_allclose(
2472 LCHab_to_munsell_specification(
2473 np.array([100.00000000, 21.57210357, 0.00000000])
2474 ),
2475 np.array([10.000000000000000, 10.0, 4.314420714000000, 8]),
2476 atol=TOLERANCE_ABSOLUTE_TESTS,
2477 )
2479 np.testing.assert_allclose(
2480 LCHab_to_munsell_specification(
2481 np.array([100.00000000, 21.57210357, 36.00000000])
2482 ),
2483 np.array([10.000000000000000, 10.0, 4.314420714000000, 7]),
2484 atol=TOLERANCE_ABSOLUTE_TESTS,
2485 )
2488class TestMaximumChromaFromRenotation:
2489 """
2490 Define :func:`colour.notation.munsell.maximum_chroma_from_renotation`
2491 definition unit tests methods.
2492 """
2494 def test_maximum_chroma_from_renotation(self) -> None:
2495 """
2496 Test :func:`colour.notation.munsell.maximum_chroma_from_renotation`
2497 definition.
2498 """
2500 assert maximum_chroma_from_renotation([2.5, 5, 5]) == 14.0
2502 assert maximum_chroma_from_renotation([8.675, 1.225, 10]) == 48.0
2504 assert maximum_chroma_from_renotation([6.875, 3.425, 1]) == 16.0
2507class TestMunsellSpecification_to_xy:
2508 """
2509 Define :func:`colour.notation.munsell.munsell_specification_to_xy`
2510 definition unit tests methods.
2511 """
2513 def test_munsell_specification_to_xy(self) -> None:
2514 """
2515 Test :func:`colour.notation.munsell.munsell_specification_to_xy`
2516 definition.
2517 """
2519 for specification, xyY in MUNSELL_EVEN_SPECIFICATIONS:
2520 np.testing.assert_allclose(
2521 munsell_specification_to_xy(specification),
2522 xyY[0:2],
2523 atol=TOLERANCE_ABSOLUTE_TESTS,
2524 )
2526 for specification, xyY in MUNSELL_GREYS_SPECIFICATIONS:
2527 np.testing.assert_allclose(
2528 munsell_specification_to_xy(specification[0]),
2529 xyY[0:2],
2530 atol=TOLERANCE_ABSOLUTE_TESTS,
2531 )