Figure and Table captions for Sandor – Ondro – Schanda: Spectral interpolation errors
Figures
Figure 1: Chromaticity of the 18 MCC samples in the u’,v’ diagram, for D65 illumination and CIE 2°
Observer.
Figure 2: Spectral reflection curve of the CMM 18 sample, original sampled at every full nanometer,
and 10 nm sampled spectrum interpolated to 1 nm using linear, Lagrange, cubic spline and Sprague
interpolation method.
Figure 3: Spectral reflection curve of the CMM 13 sample, original sampled at every full nanometer,
and 10 nm sampled spectrum interpolated to 1 nm using linear, Lagrange, cubic spline and Sprague
interpolation method.
Figure 4: Spectral reflection curve of the CMM 11 sample, original sampled at every full nanometer,
and 10 nm sampled spectrum interpolated to 1 nm using linear, Lagrange, cubic spline and Sprague
interpolation method.
Figure 5: MCC 11 test sample, difference spectra: difference between the 10 nm sampled and then
linearly, Lagrange-, spline- and Spragure-interpolated to 1 nm increments spectra and the original
1 nm spectrum.
Tables
Table 1: Luminance factor and chromaticity co-ordinates of the 18 Macbeth Color Checker Chart
samples determined for D65 illumination, 2°standard observer and 1 nm sampling
Table 2: Luminance factor and chromaticity co-ordinates calculated from the 5 nm and 10 nm sampled
spectra for D65 illuminant and 2°standard Observer
Table 3: CIELAB colour differences for D65 illuminant and 2° Standard Observer between the original
1 nm sampled reflectance spectra and the 5 nm sampled, as well as the for 1 nm back-interpolated 5
nm reflectance spectra, together with average and maximum differences*
Table 4: CIELAB colour differences for CIE standard illuminant A illuminant and 2° Standard Observer
between the original 1 nm sampled reflectance spectra and the 5 nm sampled, as well as the for 1 nm
back-interpolated 5 nm reflectance spectra, together with average and maximum differences*
Table 5: CIELAB colour differences for D65 illuminant and 2° Standard Observer between the original
1 nm sampled reflectance spectra and the 10 nm sampled, as well as the for 1 nm back-interpolated
10 nm reflectance spectra, together with average and maximum differences
Table 6: CIELAB colour differences for CIE standard illuminant A and 2° Standard Observer between
the original 1 nm sampled reflectance spectra and the 10 nm sampled, as well as the for 1 nm backinterpolated 10 nm reflectance spectra, together with average and maximum differences*