New possibility of objective evaluation of yarn appearance: part II

• Autorzy: Moučková E. , Jirásková P.

Identyfikatory

DOI

10.2478/v10304-012-0016-6

• Języki publikacji: EN

Abstrakty

EN

In this article, the possibility of new objective evaluation of yarn appearance in area employing selected spatial statistical functions is presented. The yarns wound on the boards were used for the experiment. Appearance of standard yarn boards from the standard CSN 80 0704 and real yarn boards with faultless and faulty yarns were converted into grayscale images. Fluctuation in degrees of grayness was evaluated between square fields in the image using statistical function called the area variation curve. In addition, the method was applied to the simulated yarn board appearance generated by the Uster Tester apparatus. Behavior of area variation curves in dependence on the result of visual evaluation of yarn board appearance was discussed. The generated appearances from the Uster Tester device were also evaluated by other statistical function called semivariogram. It was found out that the area variation curve is not a suitable tool for evaluation of yarn board appearance. The semivariogram seems to be a more suitable tool. The paper extends the knowledge on the issue of objective evaluation of yarn appearance and directly follows the author’s work [1].

Słowa kluczowe

EN

yarn appearance; evaluation; area variation curve; semivariogram; yarn board; yarn grades

PL

przędza; ocena; krzywa zmienności; semiwariogram

• Wydawca: Lodz University of Technology, Faculty of Material Technologies and Textile Design
• Czasopismo: Autex Research Journal
• Rocznik: 2013
• Tom: Vol. 13, no. 1
• Strony: 1--10
• Opis fizyczny: Bibliogr. 28 poz.

Twórcy

autor

Moučková E.

• Technical University of Liberec, Faculty of Textile Engineering, Department of Textile Technologies, Liberec, The Czech Republic Studentská 2, 461 17 Liberec 1

autor

Jirásková P.

• Technical University of Liberec, Faculty of Textile Engineering, Department of Textile Technologies, Liberec, The Czech Republic Studentská 2, 461 17 Liberec 1

Bibliografia

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