Colour Characterisation¶

Colour Fitting¶

colour

 POLYNOMIAL_EXPANSION_METHODS Supported polynomial expansion methods. polynomial_expansion(a[, method]) Performs polynomial expansion of given $$a$$ array. COLOUR_CORRECTION_MATRIX_METHODS Supported colour correction matrix methods. colour_correction_matrix(M_T, M_R[, method]) Computes a colour correction matrix from given $$M_T$$ colour array to $$M_R$$ colour array. COLOUR_CORRECTION_METHODS Supported colour correction methods. colour_correction(RGB, M_T, M_R[, method]) Performs colour correction of given RGB colourspace array using the colour correction matrix from given $$M_T$$ colour array to $$M_R$$ colour array.

Ancillary Objects

colour.characterisation

 augmented_matrix_Cheung2004(RGB[, terms]) Performs polynomial expansion of given RGB colourspace array using Cheung et al.(2004) method.. polynomial_expansion_Finlayson2015(RGB[, …]) Performs polynomial expansion of given RGB colourspace array using Finlayson et al.(2015) method.. polynomial_expansion_Vandermonde(a[, degree]) Performs polynomial expansion of given $$a$$ array using Vandermonde method. colour_correction_matrix_Cheung2004(M_T, M_R) Computes a colour correction from given $$M_T$$ colour array to $$M_R$$ colour array using Cheung et al.(2004) method.. colour_correction_matrix_Finlayson2015(M_T, M_R) Computes a colour correction matrix from given $$M_T$$ colour array to $$M_R$$ colour array using Finlayson et al.(2015) method.. colour_correction_matrix_Vandermonde(M_T, M_R) Computes a colour correction matrix from given $$M_T$$ colour array to $$M_R$$ colour array using Vandermonde method. colour_correction_Cheung2004(RGB, M_T, M_R) Performs colour correction of given RGB colourspace array using the colour correction matrix from given $$M_T$$ colour array to $$M_R$$ colour array using Cheung et al.(2004) method.. colour_correction_Finlayson2015(RGB, M_T, M_R) Performs colour correction of given RGB colourspace array using the colour correction matrix from given $$M_T$$ colour array to $$M_R$$ colour array using Finlayson et al.(2015) method.. colour_correction_Vandermonde(RGB, M_T, M_R) Performs colour correction of given RGB colourspace array using the colour correction matrix from given $$M_T$$ colour array to $$M_R$$ colour array using Vandermonde method.

Colour Rendition Charts¶

Dataset

colour

 COLOURCHECKERS Aggregated Colour Checkers chromaticity coordinates. COLOURCHECKERS_SDS Aggregated Colour Checkers spectral distributions.

Ancillary Objects

colour.characterisation

 ColourChecker Colour Checker data.

Cameras¶

colour.characterisation

 RGB_SpectralSensitivities([data, domain, labels]) Implements support for a camera RGB spectral sensitivities.

Dataset

colour

 CAMERAS_RGB_SPECTRAL_SENSITIVITIES Cameras RGB spectral sensitivities.

Displays¶

colour.characterisation

 RGB_DisplayPrimaries([data, domain, labels]) Implements support for a RGB display (such as a CRT or LCD) primaries multi-spectral distributions.

Dataset

colour

 DISPLAYS_RGB_PRIMARIES Displays RGB primaries multi-spectral distributions.