PROCESS FOR TEXTURING A PLY-TWISTED, CRIMPED, MULTIFILAMENT YARN, METHOD OF ANALYZING THE TEXTURE OF A SURFACE AND A CARPET MADE BY THE PROCESS AND CHARACTERIZED BY THE METHOD

摘要

The texture of a surface e.g. that of a textured saxony type carpet, comprising (a) preparing a first sample of the surface; (b) generating at least one image of the first sample; (c) generating at least one normalized co-occurrence matrix from each image for a predetermined orientation and a predetermined spatial period; (d) calculating at least one textural parameter from each normalized co-occurrence matrix; (e) constructing a set of normalized textural parameters from the textural parameter, wherein the normalized textural parameters are related to the physical properties of the surface; (f) calculating a value for each of the normalized textural parameters; (g) repeating steps (a) - (f) for a second sample; and (h) comparing the value for each of the normalized textural parameters for the first sample to the value for the corresponding normalized textural parameter for the second sample to determine whether the first sample has a texture similar to the texture of the second sample.