A portable terminal device such as a portable telephone reproduces contents of a book containing plural pages each describing various sequence data, which can be downloaded from a server via wireless communication. In the image processing apparatus, a vector converting section converts image data output from a color scanner into vector coefficients, and a color mapping section converts the image data, which are converted into the vector coefficients, into L kinds of record image data corresponding to color materials which are used by a color printer, by referring to an M-dimensional LUT. DNA encoding the envelope glycoproteins of viral pathogens is used in the present method.