Recent advances in acquisition and reproduction of multispectral images

Conventional color imaging science and technology is based on the paradigm that three variables are sufficient to characterize a color. Color television uses three color channels, and silver-halide color photography uses three photosensitive layers. However, in particular due to metamerism, three color channels are often insufficient for high quality imaging e.g. for museum applications. In recent years, a significant amount of color imaging research has been devoted to introducing imaging technologies with more than three channels - a research field known as multispectral color imaging. This paper gives an overview of this field and presents some recent advances concerning acquisition and reproduction of multispectral images.