This paper experimentally compares two mosaicing-and-demosaicing methods with the three-color or the four-color CFA's. As for the three-color CFA, this paper takes up the Alleysson's linear method for the Bayer's CFA, whereas as for the four-color CFA this paper takes up the Hirakawa's method. Computer simulations demonstrate that the former method enhances observation noise. On the other hand, the latter method suppresses observation noise, to some extent.
