抄録
The flux I0 reflected at specular angles 45°–45° from the surface of glossy paper and the assumed value of its diffuse component I2 defined experimentally are measured with a goniophotometer. The ratio of I0 to I2 is taken as a measure of gloss, and denoted by GNF according to an earlier paper of E. Fukushima.
For a series of machine glazed papers differing considerably in colour, the values of CNF are compared with the visual gradings of 36 Japanese observers, and a linear correlation of the logarithm of GNF with the visual gloss is found with a correlation coefficient +0.986 except for two papers. The method of determining the value of I2 is also introduced and the voting distributions of the observers for the gloss of the papers are discussed.
