Spectral reproduction from scene to hardcopy: I. Input and output
Date
2001-05Author
Imai, Francisco
Rosen, Mitchell
Wyble, David
Berns, Roy
Metadata
Show full item recordAbstract
Efforts to construct end-to-end color reproduction systems based on the preservation of scene spectral data have been
underway at the Munsell Color Science Laboratory (MCSL). The goal is to present hardcopy results which are spectrally
matched to original colors. The evaluated approach consists of capturing scenes through a trichromatic digital camera
combined with multiple filterings followed by an image processing stage and then four-color printing. The acquisition end is
designed to estimate original scene spectra on a pixel-by-pixel basis based on system characterizations which takes into
account the camera sensitivities as modulated by the filterings and scene colorant make-up. The spectral-based printing used
in this research is able to produce the least metameric reproduction to the original scene using a computationally feasible
approach. Results show a system accuracy of mean ΔE*94 of 1.5 and spectral reflectance rms error of 0.9%.