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gboolean cd_it8_utils_calculate_ccmx (CdIt8 *it8_reference,CdIt8 *it8_measured,CdIt8 *it8_ccmx,GError **error);
This calculates the colorimeter correction matrix using the Four-Color Matrix Method by Yoshihiro Ohno and Jonathan E. Hardis, 1997.
gboolean cd_it8_utils_calculate_xyz_from_cmf (CdIt8 *cmf,CdSpectrum *illuminant,CdSpectrum *spectrum,CdColorXYZ *value,gdouble resolution,GError **error);
This calculates the XYZ from a CMF, illuminant and input spectrum.
| cmf | The color match function | |
| illuminant | The illuminant (you can use  | |
| spectrum | The CdSpectrum input data | |
| value | The CdColorXYZ result | |
| resolution | The resolution in nm, typically 1.0 | |
| error | 
gboolean cd_it8_utils_calculate_cri_from_cmf (CdIt8 *cmf,CdIt8 *tcs,CdSpectrum *illuminant,gdouble *value,gdouble resolution,GError **error);
This calculates the CRI for a specific illuminant.