This paper describes a new method for converting color notation between the Munsell and CIE color systems by means of neural networks A multilayer feedforward network is regarded as a nonlinear transformer and is trained to learn the mapping between the two color spaces usingthe Back-Propagation learning rule. The mapping is then represented in a simple network architecture inwhich nonlinear units are linked in parallel and in layers. Using Nickerson's tables for computer simulation of the

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... ing and testing phases, an effective network structure and training strategy is determined based on experiments under different conditions. The conversion accuracy is demonstrated in both directions, Munsell-to-CIE and CIE-to-Munsell. The Munsell colors are displayed on a calibrated color monitor and their accuracy is confirmed visually.