摘要: Metameric objects look alike in colour under one light source, and different other sources. The measures or indices of metamerism are two types, special general. Various aspects metameric discussed this chapter. Textile garment manufacturers require that all the pieces making up a product should match colour. Grouping rolls cloth by shade is increasingly important as apparel designers have to use coloured very carefully consumers becoming more quality-conscious. clustering method sorting has been covered chapter.