Determination of Weave Type in Woven Fabric by Digital Image Processing

Abstract

Weave types of commercial woven fabrics were determined by analysing the two-dimensional Fourier transformation patterns of the reflected images. Data collection and data analysis were done by image processing system based on a microcomputer. The relationships between the structural units of weave types and the Fourier power spectra are summarized as follows: (1) structural unit is observed in the unit cell defined by the neighboring two warp yarns and two filling yarns in Fourier space, (2) weave harrness is obtained by counting the number of power spectra inside the unit cell, (3) structural unit is equivalent to the Fourier power spectrum arrangement of the reflected image rotated by 90 degree.