def test_lab_to_rgb_lut3(self):
r, g, b = cielab_to_rgb(
32.67421111111, 51.50189999999, 45.4267000001)
self.assertEqual(131, r)
self.assertEqual(2, g)
self.assertEqual(2, b)
def test_lab_to_rgb_lut2(self):
r, g, b = cielab_to_rgb(
32.6742, 51.5019, 45.4267)
self.assertEqual(131, r)
self.assertEqual(2, g)
self.assertEqual(2, b)
def test_lab_to_rgb_lut(self):
r, g, b = cielab_to_rgb(
0.869,
14.067,
-21.3789)
self.assertEqual(0, r)
self.assertEqual(2, g)
self.assertEqual(20, b)
def test_lab_to_rgb_random_pink(self):
r, g, b = cielab_to_rgb(
61.3159233343074,
87.5007924739545,
-47.2983051839587)
self.assertEqual(242.0, r)
self.assertEqual(13.0, g)
self.assertEqual(232.0, b)
def test_lab_to_rgb_grey(self):
r, g, b = cielab_to_rgb(
60.3512433104593,
0.0,
0.0)
self.assertEqual(127.0, r)
self.assertEqual(127.0, g)
self.assertEqual(127.0, b)
def test_lab_to_rgb_blue(self):
r, g, b = cielab_to_rgb(
34.6689828323685,
71.1255602213487,
-101.887893082443)
self.assertEqual(0.0, r)
self.assertEqual(0.0, g)
self.assertEqual(255.0, b)
def test_lab_to_rgb_green(self):
r, g, b = cielab_to_rgb(
85.6070742290004,
-91.4861929759672,
73.9622026853808)
self.assertEqual(0.0, r)
self.assertEqual(255.0, g)
self.assertEqual(0.0, b)
def test_lab_to_rgb_red(self):
r, g, b = cielab_to_rgb(
56.547017615341,
76.8994334713463,
68.1034442713808)
self.assertEqual(255.0, r)
self.assertEqual(0.0, g)
self.assertEqual(0.0, b)
def read_color(self, stream):
stream.log('Skipping 3 bytes') # looks like 01 00 00 ?
stream.read(3)
lab_l = stream.read_double()
lab_a = stream.read_double()
lab_b = stream.read_double()
try:
self.red, self.green, self.blue = cielab_to_rgb(lab_l, lab_a, lab_b)
except OverflowError as e:
raise InvalidColorException() from e
if self.red > 255 or self.red < 0:
raise InvalidColorException()
if self.blue > 255 or self.blue < 0:
raise InvalidColorException()
if self.green > 255 or self.green < 0:
raise InvalidColorException()