def test_rgb_to_xyz():
rgb_arr = _img()[:, 0]
float_arr = transform.ensure_rgb_float(rgb_arr)
xyz_arr = _nphusl._rgb_to_xyz(rgb_arr)
for xyz, rgb, rgbf in zip(xyz_arr, rgb_arr, float_arr):
diff = xyz - husl.rgb_to_xyz(rgbf)
_diff(xyz, husl.rgb_to_xyz(rgbf))
def test_snapshot(self):
for hex_color, colors in self.snapshot.items():
# Test forward functions
test_rgb = husl.hex_to_rgb(hex_color)
self.assertTuplesClose(test_rgb, colors['rgb'])
test_xyz = husl.rgb_to_xyz(test_rgb)
self.assertTuplesClose(test_xyz, colors['xyz'])
test_luv = husl.xyz_to_luv(test_xyz)
self.assertTuplesClose(test_luv, colors['luv'])
test_lch = husl.luv_to_lch(test_luv)
self.assertTuplesClose(test_lch, colors['lch'])
test_husl = husl.lch_to_husl(test_lch)
self.assertTuplesClose(test_husl, colors['husl'])
test_huslp = husl.lch_to_huslp(test_lch)
self.assertTuplesClose(test_huslp, colors['huslp'])
# Test backward functions
test_lch = husl.husl_to_lch(colors['husl'])
self.assertTuplesClose(test_lch, colors['lch'])
test_lch = husl.huslp_to_lch(colors['huslp'])
self.assertTuplesClose(test_lch, colors['lch'])
test_luv = husl.lch_to_luv(test_lch)
self.assertTuplesClose(test_luv, colors['luv'])
test_xyz = husl.luv_to_xyz(test_luv)
self.assertTuplesClose(test_xyz, colors['xyz'])
test_rgb = husl.xyz_to_rgb(test_xyz)
self.assertTuplesClose(test_rgb, colors['rgb'])
self.assertEqual(husl.rgb_to_hex(test_rgb), hex_color)
# Full test
self.assertEqual(husl.husl_to_hex(*colors['husl']), hex_color)
self.assertTuplesClose(husl.hex_to_husl(hex_color), colors['husl'])
self.assertEqual(husl.huslp_to_hex(*colors['huslp']), hex_color)
self.assertTuplesClose(husl.hex_to_huslp(hex_color), colors['huslp'])
def test_rgb_to_xyz_3d():
img = _img()
xyz_arr = nphusl.rgb_to_xyz(img)
for row in range(img.shape[0]):
for col in range(img.shape[1]):
assert _diff(xyz_arr[row, col],
husl.rgb_to_xyz(img[row, col]))
def test_rgb_to_xyz_3d():
img = _img()
float_img = transform.ensure_rgb_float(img)
xyz_arr = _nphusl._rgb_to_xyz(img)
for row in range(img.shape[0]):
for col in range(img.shape[1]):
_diff(xyz_arr[row, col], husl.rgb_to_xyz(float_img[row, col]))
def test_luv_to_lch():
rgb_arr = _img()[:, 0]
rgb_arr = _img()
rgb_arr = rgb_arr.reshape((rgb_arr.size // 3, 3))
xyz_arr = nphusl.rgb_to_xyz(rgb_arr)
luv_arr = nphusl.xyz_to_luv(xyz_arr)
lch_arr = nphusl.luv_to_lch(luv_arr)
for i in range(rgb_arr.shape[0]):
xyz = husl.rgb_to_xyz(rgb_arr[i])
assert _diff(xyz, xyz_arr[i])
luv = husl.xyz_to_luv(xyz)
assert _diff(luv, luv_arr[i])
lch = husl.luv_to_lch(luv)
assert _diff(lch, lch_arr[i])
def test_luv_to_lch():
rgb_arr = _img()[:, 14]
float_arr = transform.ensure_rgb_float(rgb_arr)
rgb_arr = rgb_arr.reshape((rgb_arr.size // 3, 3))
xyz_arr = _nphusl._rgb_to_xyz(rgb_arr)
luv_arr = _nphusl._xyz_to_luv(xyz_arr)
lch_arr = _nphusl._luv_to_lch(luv_arr)
for i in range(rgb_arr.shape[0]):
xyz = husl.rgb_to_xyz(float_arr[i])
_diff(xyz, xyz_arr[i])
luv = husl.xyz_to_luv(xyz)
_diff(luv, luv_arr[i])
lch = husl.luv_to_lch(luv)
_diff(lch, lch_arr[i])
def test_snapshot(self):
for hex_color, colors in self.snapshot.items():
# Test forward functions
test_rgb = husl.hex_to_rgb(hex_color)
self.assertTuplesClose(test_rgb, colors['rgb'])
test_xyz = husl.rgb_to_xyz(test_rgb)
self.assertTuplesClose(test_xyz, colors['xyz'])
test_luv = husl.xyz_to_luv(test_xyz)
self.assertTuplesClose(test_luv, colors['luv'])
test_lch = husl.luv_to_lch(test_luv)
self.assertTuplesClose(test_lch, colors['lch'])
test_husl = husl.lch_to_husl(test_lch)
self.assertTuplesClose(test_husl, colors['husl'])
test_huslp = husl.lch_to_huslp(test_lch)
self.assertTuplesClose(test_huslp, colors['huslp'])
# Test backward functions
test_lch = husl.husl_to_lch(colors['husl'])
self.assertTuplesClose(test_lch, colors['lch'])
test_lch = husl.huslp_to_lch(colors['huslp'])
self.assertTuplesClose(test_lch, colors['lch'])
test_luv = husl.lch_to_luv(test_lch)
self.assertTuplesClose(test_luv, colors['luv'])
test_xyz = husl.luv_to_xyz(test_luv)
self.assertTuplesClose(test_xyz, colors['xyz'])
test_rgb = husl.xyz_to_rgb(test_xyz)
self.assertTuplesClose(test_rgb, colors['rgb'])
self.assertEqual(husl.rgb_to_hex(test_rgb), hex_color)
# Full test
self.assertEqual(husl.husl_to_hex(*colors['husl']), hex_color)
self.assertTuplesClose(husl.hex_to_husl(hex_color), colors['husl'])
self.assertEqual(husl.huslp_to_hex(*colors['huslp']), hex_color)
self.assertTuplesClose(husl.hex_to_huslp(hex_color),
colors['huslp'])
def test_rgb_to_xyz():
rgb_arr = _img()[:, 0]
xyz_arr = nphusl.rgb_to_xyz(rgb_arr)
for xyz, rgb in zip(xyz_arr, rgb_arr):
diff = xyz - husl.rgb_to_xyz(rgb)
assert _diff(xyz, husl.rgb_to_xyz(rgb))
