def test_rgb_to_lch_3d():
rgb_arr = _img()
lch_arr = nphusl.rgb_to_lch(rgb_arr)
for row in range(lch_arr.shape[0]):
for col in range(lch_arr.shape[1]):
old_lch = husl.rgb_to_lch(*rgb_arr[row, col])
assert _diff(lch_arr[row, col], old_lch)
def test_luv_to_lch_3d():
img = _img()
xyz_arr = nphusl.rgb_to_xyz(img)
luv_arr = nphusl.xyz_to_luv(xyz_arr)
lch_new = nphusl.luv_to_lch(luv_arr)
for row in range(lch_new.shape[0]):
for col in range(lch_new.shape[1]):
lch_old = husl.rgb_to_lch(*img[row, col])
assert _diff(lch_new[row, col], lch_old)
def test_lch_to_husl_3d():
img = _img()
lch_new = nphusl.rgb_to_lch(img)
hsl_new = nphusl.lch_to_husl(lch_new)
for row in range(lch_new.shape[0]):
for col in range(lch_new.shape[1]):
lch_old = husl.rgb_to_lch(*img[row, col])
assert _diff(lch_old, lch_new[row, col])
hsl_old = husl.lch_to_husl(lch_old)
assert _diff(hsl_new[row, col], hsl_old)
def test_lch_to_husl():
rgb_arr = _img()
lch_arr = nphusl.rgb_to_lch(rgb_arr)
hsl_from_lch_arr = nphusl.lch_to_husl(lch_arr)
hsl_from_rgb_arr = nphusl.rgb_to_husl(rgb_arr)
print(rgb_arr[30:34, 0])
print(hsl_from_lch_arr[30:34, 0])
print(hsl_from_rgb_arr[30:34, 0])
for i in range(rgb_arr.shape[0]):
old_lch = husl.rgb_to_lch(*rgb_arr[i, 0])
hsl_old = husl.lch_to_husl(old_lch)
hsl_old = husl.rgb_to_husl(*rgb_arr[i, 0])
assert _diff(lch_arr[i, 0], old_lch)
assert _diff_hue(hsl_from_lch_arr[i, 0], hsl_from_rgb_arr[i, 0])
assert _diff_hue(hsl_from_lch_arr[i, 0], hsl_from_rgb_arr[i, 0])
def test_rgb_to_lch():
rgb_arr = _img()[:, 0]
lch_arr = nphusl.rgb_to_lch(rgb_arr)
for lch, rgb in zip(lch_arr, rgb_arr):
diff = lch - husl.rgb_to_lch(*rgb)
assert _diff(lch, husl.rgb_to_lch(*rgb))
def _ref_to_lch(rgb):
asfloat = (c / 255.0 for c in rgb)
return husl.rgb_to_lch(*asfloat)