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.

ATD95_Specification(h, C, Q, A_1, T_1, D_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(CIECAM02_specification, …)

Converts from CIECAM02 specification to CIE XYZ tristimulus values.

CIECAM02_Specification([J, C, h, s, Q, M, H, HC])

Defines the CIECAM02 colour appearance model specification.

CIECAM02_VIEWING_CONDITIONS

Reference CIECAM02 colour appearance model viewing conditions.

Ancillary Objects

colour.appearance

CIECAM02_InductionFactors(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(CAM16_specification, XYZ_w, …)

Converts from CAM16 specification to CIE XYZ tristimulus values.

CAM16_Specification([J, C, h, s, Q, M, H, HC])

Defines the CAM16 colour appearance model specification.

CAM16_VIEWING_CONDITIONS

Reference CAM16 colour appearance model viewing conditions.

Ancillary Objects

colour.appearance

CAM16_InductionFactors(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.

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

Defines the Hunt colour appearance model specification.

HUNT_VIEWING_CONDITIONS

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.

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

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

LLAB_VIEWING_CONDITIONS

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

Ancillary Objects

colour.appearance

LLAB_InductionFactors(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.

Nayatani95_Specification(L_star_P, C, h, s, …)

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.

RLAB_D_FACTOR

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

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

Defines the RLAB colour appearance model specification.

RLAB_VIEWING_CONDITIONS

Reference RLAB colour appearance model viewing conditions.