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Abstract

Dimensional changes and soil release are important functional attributes of fabrics that impact their pricing in the marketplace. This paper presents the underlying principles of a machine vision system that creates a framework for making both measurements in a simultaneous and automatic fashion from digitized fabric images. In addition, the proposed approach is equipped to operate on solid color, as well as printed/patterned fabrics. This system, using image analysis, can (i) measure dimensional changes, which include shrinkage and skew, and (ii) localize stains on the fabric image, which can then be evaluated for soil release. Robust extraction of the above measurements on printed fabric images are made possible using a sequence of customized image registration and background-subtraction techniques. The system was validated using a set of 623 fabric images that involved the detection of 1868 shrinkage dots which were used to make 934 shrinkage measurements, 467 skew measurements, and detect 240 potential stains. The system produced excellent results with a successful shrinkage dot detection rate of 98.9% and an average stain segmentation accuracy of 0.87 using the dice metric.

Keywords

Printed fabric shrinkage soil release image analysis segmentation image registration

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Dimensional change measurement and stain segmentation in printed fabrics

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