def test_max_lh_for_chroma():
rgb_arr = _img()[:, 0]
lch_arr = nphusl.rgb_to_lch(rgb_arr)
with np.errstate(invalid="ignore"):
mx_arr = nphusl._max_lh_chroma(lch_arr)
arrays = zip(mx_arr, lch_arr, rgb_arr)
for mx, lch, rgb in arrays:
try:
mx_old = husl.max_chroma_for_LH(float(lch[0]), float(lch[2]))
except ZeroDivisionError:
# NOTE: Divide by zero is avoided in nphusl.py
# we're taking a backdoor here by using max_chroma_for_LH directly
assert np.isinf(mx)
else:
assert _diff(mx, mx_old)
def test_max_lh_for_chroma():
rgb_arr = _img()[:, 0]
lch_arr = _nphusl._rgb_to_lch(rgb_arr)
with np.errstate(invalid="ignore"):
mx_arr = _nphusl._max_lh_chroma(lch_arr)
arrays = zip(mx_arr, lch_arr, rgb_arr)
for mx, lch, rgb in arrays:
try:
mx_old = husl.max_chroma_for_LH(float(lch[0]), float(lch[2]))
except ZeroDivisionError:
# NOTE: Divide by zero is avoided in nphusl.py
# we're taking a backdoor here by using max_chroma_for_LH directly
assert np.isinf(mx)
else:
_diff(mx, mx_old)
def test_cython_max_chroma():
from nphusl import _nphusl_cython
husl_chroma = husl.max_chroma_for_LH(0.25, 40.0)
cyth_chroma = _nphusl_cython._test_max_chroma(0.25, 40.0)
assert abs(husl_chroma - cyth_chroma) < 0.001
def test_cython_max_chroma():
from nphusl import _cython_opt
husl_chroma = husl.max_chroma_for_LH(0.25, 40.0)
cyth_chroma = _cython_opt._test_max_chroma(0.25, 40.0)
assert abs(husl_chroma - cyth_chroma) < 0.001
