Colour Appearance Models

ATD (1995)

colour

XYZ_to_ATD95(XYZ, XYZ_0, Y_0, k_1, k_2[, sigma])

Computes the ATD (1995) colour vision model correlates.

CAM_Specification_ATD95(h, C, Q, A_1, T_1, …)

Defines the ATD (1995) colour vision model specification.

CIECAM02

colour

XYZ_to_CIECAM02(XYZ, XYZ_w, L_A, Y_b[, …])

Computes the CIECAM02 colour appearance model correlates from given CIE XYZ tristimulus values.

CIECAM02_to_XYZ(specification, XYZ_w, L_A, Y_b)

Converts from CIECAM02 specification to CIE XYZ tristimulus values.

CAM_Specification_CIECAM02([J, C, h, s, Q, …])

Defines the CIECAM02 colour appearance model specification.

VIEWING_CONDITIONS_CIECAM02

Reference CIECAM02 colour appearance model viewing conditions.

Ancillary Objects

colour.appearance

InductionFactors_CIECAM02(F, c, N_c)

CIECAM02 colour appearance model induction factors.

CAM16

colour

XYZ_to_CAM16(XYZ, XYZ_w, L_A, Y_b[, …])

Computes the CAM16 colour appearance model correlates from given CIE XYZ tristimulus values.

CAM16_to_XYZ(specification, XYZ_w, L_A, Y_b)

Converts from CAM16 specification to CIE XYZ tristimulus values.

CAM_Specification_CAM16([J, C, h, s, Q, M, …])

Defines the CAM16 colour appearance model specification.

VIEWING_CONDITIONS_CAM16

Reference CAM16 colour appearance model viewing conditions.

Ancillary Objects

colour.appearance

InductionFactors_CAM16(F, c, N_c)

CAM16 colour appearance model induction factors.

Hunt

colour

XYZ_to_Hunt(XYZ, XYZ_w, XYZ_b, L_A[, …])

Computes the Hunt colour appearance model correlates.

CAM_Specification_Hunt(J, C, h, s, Q, M, H, HC)

Defines the Hunt colour appearance model specification.

VIEWING_CONDITIONS_HUNT

Reference Hunt colour appearance model viewing conditions.

\(LLAB(l:c)\)

colour

XYZ_to_LLAB(XYZ, XYZ_0, Y_b, L[, surround])

Computes the :math:`LLAB(l:c)` colour appearance model correlates.

CAM_Specification_LLAB(J, C, h, s, M, HC, a, b)

Defines the :math:`LLAB(l:c)` colour appearance model specification.

VIEWING_CONDITIONS_LLAB

Reference \(LLAB(l:c)\) colour appearance model viewing conditions.

Ancillary Objects

colour.appearance

InductionFactors_LLAB(D, F_S, F_L, F_C)

:math:`LLAB(l:c)` colour appearance model induction factors.

Nayatani (1995)

colour

XYZ_to_Nayatani95(XYZ, XYZ_n, Y_o, E_o, E_or)

Computes the Nayatani (1995) colour appearance model correlates.

CAM_Specification_Nayatani95(L_star_P, C, h, …)

Defines the Nayatani (1995) colour appearance model specification.

RLAB

colour

XYZ_to_RLAB(XYZ, XYZ_n, Y_n[, sigma, D])

Computes the RLAB model color appearance correlates.

CAM_Specification_RLAB(J, C, h, s, HC, a, b)

Defines the RLAB colour appearance model specification.

VIEWING_CONDITIONS_RLAB

Reference RLAB colour appearance model viewing conditions.

Ancillary Objects

colour.appearance

D_FACTOR_RLAB

RLAB colour appearance model Discounting-the-Illuminant factor values.