colour.spectral_similarity_index#
- colour.spectral_similarity_index(sd_test: SpectralDistribution, sd_reference: SpectralDistribution) ndarray [source]#
Return the Academy Spectral Similarity Index (SSI) of given test spectral distribution with given reference spectral distribution.
- Parameters:
sd_test (SpectralDistribution) – Test spectral distribution.
sd_reference (SpectralDistribution) – Reference spectral distribution.
- Returns:
Academy Spectral Similarity Index (SSI).
- Return type:
References
Examples
>>> from colour import SDS_ILLUMINANTS >>> sd_test = SDS_ILLUMINANTS["C"] >>> sd_reference = SDS_ILLUMINANTS["D65"] >>> spectral_similarity_index(sd_test, sd_reference) 94.0