A robust estimation algorithm for printer modeling

This paper describes a robust estimation algorithm (REA) for estimating the device-specific parameters of the so-called spectral Neugebauer model. This physics-based model is used to characterize the response of color printers. The various steps required to use REA are given. A detailed case study, using a high-end color printer, was conducted to evaluate the performance of REA relative to the methods of least squares and total least squares. The main result of the study shows that the model obtained with REA achieves the smallest approximation errors in both spectral and L* a* b* color spaces.