COMPUTER-READABLE RECORDING MEDIUM HAVING DATA STRUCTURE OF TEXTURE MAP OF PAINT COLORS RECORDED THEREON

PROBLEM TO BE SOLVED: To provide a computer-readable recording medium having, recorded thereon, a data structure of the texture map of paint colors for which a plurality of paint colors are arranged so as to allow recognition of the textures.SOLUTION: A data structure recorded in a recording medium is for generating a texture map of paint colors for which a plurality of the paint colors are arranged on a two-dimensional plane whose coordinate axes are two parameters capable of expressing the colors and texture of the paint colors, and is configured such that the values of the two parameters indicating coordinates on the two-dimensional plane and information specifying the colors of the paint colors mutually correspond. The values of the parameters are the values of a first main component and a second main component obtained by an arithmetic unit regarding each of the plurality of paint colors by the arithmetic unit obtaining at least three feature amounts using spectral reflection factors at a plurality of light receiving angles measured for each of the plurality of paint colors recorded in a recorder (S1-S3), and the arithmetic unit analyzing the main components of a data group including the at least three feature amounts and obtaining the first main component and the second main component which are the primary expression of the feature amounts (S4).