Research Article
Spectral Reflectance Recovery from Tristimulus Values under Multi-Illuminants
Table 2
Spectral angle mapper (SAM) statistics for two reference illuminants.
| ā | ā | A | B | C | D50 | D55 | D65 | LED1 | LED2 |
| SAM | A | 0.0000 | 0.4276 | 0.6339 | 0.4552 | 0.5280 | 0.6406 | 0.3053 | 0.3185 | B | 0.4276 | 0.0000 | 0.2141 | 0.0620 | 0.1137 | 0.2249 | 0.3891 | 0.3558 | C | 0.6339 | 0.2141 | 0.0000 | 0.2087 | 0.1417 | 0.0831 | 0.5748 | 0.5392 | D50 | 0.4552 | 0.0620 | 0.2087 | 0.0000 | 0.0774 | 0.1986 | 0.3990 | 0.3659 | D55 | 0.5280 | 0.1137 | 0.1417 | 0.0774 | 0.0000 | 0.1215 | 0.4653 | 0.4313 | D65 | 0.6406 | 0.2249 | 0.0831 | 0.1986 | 0.1215 | 0.0000 | 0.5751 | 0.5410 | LED1 | 0.3053 | 0.3891 | 0.5748 | 0.3990 | 0.4653 | 0.5751 | 0.0000 | 0.0619 | LED2 | 0.3185 | 0.3558 | 0.5392 | 0.3659 | 0.4313 | 0.5410 | 0.0619 | 0.0000 |
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