On the accuracy of scanning colour images

In order to reproduce perceived color accurately the three bands of a color image must be obtained using sensors whose relative spectral sensitivity satisfies certain constraints. These constraints, the design of filters which satisfy these constraints, and the effect of inaccuracies in the sensors´ response are discussed. The mathematical techniques used for the error analysis have not been used previously in color scanning filter design. The results of this study are applicable to most color systems, including television, lithography, copiers and printers