Beispiel #1
0
def corresponding_chromaticities_prediction_CMCCAT2000(experiment=1, **kwargs):
    """
    Returns the corresponding chromaticities prediction for CMCCAT2000
    chromatic adaptation model.

    Parameters
    ----------
    experiment : integer, optional
        {1, 2, 3, 4, 6, 8, 9, 11, 12}
        Breneman (1987) experiment number.
    \*\*kwargs : \*\*
        Keywords arguments.

    Returns
    -------
    tuple
        Corresponding chromaticities prediction.

    Examples
    --------
    >>> from pprint import pprint
    >>> pr = corresponding_chromaticities_prediction_CMCCAT2000(2)
    >>> pr = [(p.uvp_m, p.uvp_p) for p in pr]
    >>> pprint(pr)  # doctest: +SKIP
    [((0.207, 0.486), (0.20832101929657834, 0.47271680534693694)),
     ((0.449, 0.511), (0.44592707020371486, 0.50777351504395707)),
     ((0.263, 0.505), (0.26402624712986333, 0.4955361681706304)),
     ((0.322, 0.545), (0.33168840090358015, 0.54315801981008516)),
     ((0.316, 0.537), (0.32226245779851387, 0.53576245377085929)),
     ((0.265, 0.553), (0.27107058097430181, 0.5501997842556422)),
     ((0.221, 0.538), (0.22618269421847523, 0.52947407170848704)),
     ((0.135, 0.532), (0.14396930475660724, 0.51909841743126817)),
     ((0.145, 0.472), (0.14948357434418671, 0.45567605010224305)),
     ((0.163, 0.331), (0.15631720730028753, 0.31641514460738623)),
     ((0.176, 0.431), (0.17631993066748047, 0.41275893424542082)),
     ((0.244, 0.349), (0.22876382018951744, 0.3499324084859976))]
    """

    experiment_results = list(BRENEMAN_EXPERIMENTS.get(experiment))

    illuminants = experiment_results.pop(0)
    XYZ_w = xy_to_XYZ(Luv_uv_to_xy(illuminants.uvp_t)) * 100
    XYZ_wr = xy_to_XYZ(Luv_uv_to_xy(illuminants.uvp_m)) * 100
    xy_wr = XYZ_to_xy(XYZ_wr)
    L_A1 = L_A2 = BRENEMAN_EXPERIMENTS_PRIMARIES_CHROMATICITIES.get(
        experiment).Y

    prediction = []
    for result in experiment_results:
        XYZ_1 = xy_to_XYZ(Luv_uv_to_xy(result.uvp_t)) * 100
        XYZ_2 = chromatic_adaptation_CMCCAT2000(
            XYZ_1, XYZ_w, XYZ_wr, L_A1, L_A2)
        uvp = Luv_to_uv(XYZ_to_Luv(XYZ_2, xy_wr), xy_wr)
        prediction.append(CorrespondingChromaticitiesPrediction(
            result.name,
            result.uvp_t,
            result.uvp_m,
            uvp))

    return tuple(prediction)
Beispiel #2
0
def corresponding_chromaticities_prediction_CMCCAT2000(experiment=1, **kwargs):
    """
    Returns the corresponding chromaticities prediction for CMCCAT2000
    chromatic adaptation model.

    Parameters
    ----------
    experiment : integer, optional
        {1, 2, 3, 4, 6, 8, 9, 11, 12}
        Breneman (1987) experiment number.
    \**kwargs : dict, optional
        Keywords arguments.

    Returns
    -------
    tuple
        Corresponding chromaticities prediction.

    Examples
    --------
    >>> from pprint import pprint
    >>> pr = corresponding_chromaticities_prediction_CMCCAT2000(2)
    >>> pr = [(p.uvp_m, p.uvp_p) for p in pr]
    >>> pprint(pr)  # doctest: +SKIP
    [((0.207, 0.486), (0.20832101929657834, 0.47271680534693694)),
     ((0.449, 0.511), (0.44592707020371486, 0.50777351504395707)),
     ((0.263, 0.505), (0.26402624712986333, 0.4955361681706304)),
     ((0.322, 0.545), (0.33168840090358015, 0.54315801981008516)),
     ((0.316, 0.537), (0.32226245779851387, 0.53576245377085929)),
     ((0.265, 0.553), (0.27107058097430181, 0.5501997842556422)),
     ((0.221, 0.538), (0.22618269421847523, 0.52947407170848704)),
     ((0.135, 0.532), (0.14396930475660724, 0.51909841743126817)),
     ((0.145, 0.472), (0.14948357434418671, 0.45567605010224305)),
     ((0.163, 0.331), (0.15631720730028753, 0.31641514460738623)),
     ((0.176, 0.431), (0.17631993066748047, 0.41275893424542082)),
     ((0.244, 0.349), (0.22876382018951744, 0.3499324084859976))]
    """

    experiment_results = list(BRENEMAN_EXPERIMENTS.get(experiment))

    illuminants = experiment_results.pop(0)
    XYZ_w = xy_to_XYZ(Luv_uv_to_xy(illuminants.uvp_t)) * 100
    XYZ_wr = xy_to_XYZ(Luv_uv_to_xy(illuminants.uvp_m)) * 100
    xy_wr = XYZ_to_xy(XYZ_wr)
    L_A1 = L_A2 = BRENEMAN_EXPERIMENTS_PRIMARIES_CHROMATICITIES.get(
        experiment).Y

    prediction = []
    for result in experiment_results:
        XYZ_1 = xy_to_XYZ(Luv_uv_to_xy(result.uvp_t)) * 100
        XYZ_2 = chromatic_adaptation_CMCCAT2000(
            XYZ_1, XYZ_w, XYZ_wr, L_A1, L_A2)
        uvp = Luv_to_uv(XYZ_to_Luv(XYZ_2, xy_wr), xy_wr)
        prediction.append(CorrespondingChromaticitiesPrediction(
            result.name,
            result.uvp_t,
            result.uvp_m,
            uvp))

    return tuple(prediction)
Beispiel #3
0
def corresponding_chromaticities_prediction_CMCCAT2000(experiment=1):
    """
    Returns the corresponding chromaticities prediction for CMCCAT2000
    chromatic adaptation model.

    Parameters
    ----------
    experiment : integer, optional
        {1, 2, 3, 4, 6, 8, 9, 11, 12}
        Breneman (1987) experiment number.

    Returns
    -------
    tuple
        Corresponding chromaticities prediction.

    Examples
    --------
    >>> from pprint import pprint
    >>> pr = corresponding_chromaticities_prediction_CMCCAT2000(2)
    >>> pr = [(p.uvp_m, p.uvp_p) for p in pr]
    >>> pprint(pr)  # doctest: +SKIP
    [((0.207, 0.486), (0.2083210..., 0.4727168...)),
     ((0.449, 0.511), (0.4459270..., 0.5077735...)),
     ((0.263, 0.505), (0.2640262..., 0.4955361...)),
     ((0.322, 0.545), (0.3316884..., 0.5431580...)),
     ((0.316, 0.537), (0.3222624..., 0.5357624...)),
     ((0.265, 0.553), (0.2710705..., 0.5501997...)),
     ((0.221, 0.538), (0.2261826..., 0.5294740...)),
     ((0.135, 0.532), (0.1439693..., 0.5190984...)),
     ((0.145, 0.472), (0.1494835..., 0.4556760...)),
     ((0.163, 0.331), (0.1563172..., 0.3164151...)),
     ((0.176, 0.431), (0.1763199..., 0.4127589...)),
     ((0.244, 0.349), (0.2287638..., 0.3499324...))]
    """

    experiment_results = list(BRENEMAN_EXPERIMENTS.get(experiment))

    illuminants = experiment_results.pop(0)
    XYZ_w = xy_to_XYZ(Luv_uv_to_xy(illuminants.uvp_t)) * 100
    XYZ_wr = xy_to_XYZ(Luv_uv_to_xy(illuminants.uvp_m)) * 100
    xy_wr = XYZ_to_xy(XYZ_wr)
    L_A1 = L_A2 = BRENEMAN_EXPERIMENTS_PRIMARIES_CHROMATICITIES.get(
        experiment).Y

    prediction = []
    for result in experiment_results:
        XYZ_1 = xy_to_XYZ(Luv_uv_to_xy(result.uvp_t)) * 100
        XYZ_2 = chromatic_adaptation_CMCCAT2000(
            XYZ_1, XYZ_w, XYZ_wr, L_A1, L_A2)
        uvp = Luv_to_uv(XYZ_to_Luv(XYZ_2, xy_wr), xy_wr)
        prediction.append(CorrespondingChromaticitiesPrediction(
            result.name,
            result.uvp_t,
            result.uvp_m,
            uvp))

    return tuple(prediction)
Beispiel #4
0
def corresponding_chromaticities_prediction_CMCCAT2000(experiment=1):
    """
    Returns the corresponding chromaticities prediction for CMCCAT2000
    chromatic adaptation model.

    Parameters
    ----------
    experiment : integer, optional
        {1, 2, 3, 4, 6, 8, 9, 11, 12}
        Breneman (1987) experiment number.

    Returns
    -------
    tuple
        Corresponding chromaticities prediction.

    Examples
    --------
    >>> from pprint import pprint
    >>> pr = corresponding_chromaticities_prediction_CMCCAT2000(2)
    >>> pr = [(p.uvp_m, p.uvp_p) for p in pr]
    >>> pprint(pr)  # doctest: +SKIP
    [((0.207, 0.486), (0.2083210..., 0.4727168...)),
     ((0.449, 0.511), (0.4459270..., 0.5077735...)),
     ((0.263, 0.505), (0.2640262..., 0.4955361...)),
     ((0.322, 0.545), (0.3316884..., 0.5431580...)),
     ((0.316, 0.537), (0.3222624..., 0.5357624...)),
     ((0.265, 0.553), (0.2710705..., 0.5501997...)),
     ((0.221, 0.538), (0.2261826..., 0.5294740...)),
     ((0.135, 0.532), (0.1439693..., 0.5190984...)),
     ((0.145, 0.472), (0.1494835..., 0.4556760...)),
     ((0.163, 0.331), (0.1563172..., 0.3164151...)),
     ((0.176, 0.431), (0.1763199..., 0.4127589...)),
     ((0.244, 0.349), (0.2287638..., 0.3499324...))]
    """

    experiment_results = list(BRENEMAN_EXPERIMENTS.get(experiment))

    illuminants = experiment_results.pop(0)
    XYZ_w = xy_to_XYZ(Luv_uv_to_xy(illuminants.uvp_t)) * 100
    XYZ_wr = xy_to_XYZ(Luv_uv_to_xy(illuminants.uvp_m)) * 100
    xy_wr = XYZ_to_xy(XYZ_wr)
    L_A1 = L_A2 = BRENEMAN_EXPERIMENTS_PRIMARIES_CHROMATICITIES.get(
        experiment).Y

    prediction = []
    for result in experiment_results:
        XYZ_1 = xy_to_XYZ(Luv_uv_to_xy(result.uvp_t)) * 100
        XYZ_2 = chromatic_adaptation_CMCCAT2000(XYZ_1, XYZ_w, XYZ_wr, L_A1,
                                                L_A2)
        uvp = Luv_to_uv(XYZ_to_Luv(XYZ_2, xy_wr), xy_wr)
        prediction.append(
            CorrespondingChromaticitiesPrediction(result.name, result.uvp_t,
                                                  result.uvp_m, uvp))

    return tuple(prediction)
Beispiel #5
0
def corresponding_chromaticities_prediction_CMCCAT2000(experiment=1):
    """
    Returns the corresponding chromaticities prediction for *CMCCAT2000*
    chromatic adaptation model.

    Parameters
    ----------
    experiment : integer or CorrespondingColourDataset, optional
        {1, 2, 3, 4, 6, 8, 9, 11, 12}
        *Breneman (1987)* experiment number or
        :class:`colour.CorrespondingColourDataset` class instance.

    Returns
    -------
    tuple
        Corresponding chromaticities prediction.

    References
    ----------
    :cite:`Breneman1987b`, :cite:`Li2002a`, :cite:`Westland2012k`

    Examples
    --------
    >>> from pprint import pprint
    >>> pr = corresponding_chromaticities_prediction_CMCCAT2000(2)
    >>> pr = [(p.uv_m, p.uv_p) for p in pr]
    >>> pprint(pr)  # doctest: +ELLIPSIS
    [(array([ 0.207,  0.486]), array([ 0.2083210...,  0.4727168...])),
     (array([ 0.449,  0.511]), array([ 0.4459270...,  0.5077735...])),
     (array([ 0.263,  0.505]), array([ 0.2640262...,  0.4955361...])),
     (array([ 0.322,  0.545]), array([ 0.3316884...,  0.5431580...])),
     (array([ 0.316,  0.537]), array([ 0.3222624...,  0.5357624...])),
     (array([ 0.265,  0.553]), array([ 0.2710705...,  0.5501997...])),
     (array([ 0.221,  0.538]), array([ 0.2261826...,  0.5294740...])),
     (array([ 0.135,  0.532]), array([ 0.1439693...,  0.5190984...])),
     (array([ 0.145,  0.472]), array([ 0.1494835...,  0.4556760...])),
     (array([ 0.163,  0.331]), array([ 0.1563172...,  0.3164151...])),
     (array([ 0.176,  0.431]), array([ 0.1763199...,  0.4127589...])),
     (array([ 0.244,  0.349]), array([ 0.2287638...,  0.3499324...]))]
    """

    experiment_results = (convert_experiment_results_Breneman1987(experiment)
                          if is_numeric(experiment) else experiment)

    with domain_range_scale(1):
        XYZ_w, XYZ_wr = experiment_results.XYZ_t, experiment_results.XYZ_r
        xy_w, xy_wr = XYZ_to_xy([XYZ_w, XYZ_wr])

        uv_t = Luv_to_uv(XYZ_to_Luv(experiment_results.XYZ_ct, xy_w), xy_w)
        uv_m = Luv_to_uv(XYZ_to_Luv(experiment_results.XYZ_cr, xy_wr), xy_wr)

        L_A1 = experiment_results.Y_t
        L_A2 = experiment_results.Y_r

        XYZ_1 = experiment_results.XYZ_ct
        XYZ_2 = chromatic_adaptation_CMCCAT2000(XYZ_1, XYZ_w, XYZ_wr, L_A1,
                                                L_A2)
        uv_p = Luv_to_uv(XYZ_to_Luv(XYZ_2, xy_wr), xy_wr)

        return tuple([
            CorrespondingChromaticitiesPrediction(experiment_results.name,
                                                  uv_t[i], uv_m[i], uv_p[i])
            for i in range(len(uv_t))
        ])