Study on Yarn Blackboard by Digital Image Processing Method

Xuanli Zhou

Modern Applied Science, 2007, vol. 1, issue 4, 107

Abstract: This article introduces a method which adopts the computer image manipulation to process the collected images of yarnblack.Aiming at the hairiness and scratches existing in the yarn blackboard, we adopt the methods such as smoothnessprocessing, threshold value division and image repairing to obtain a clear digital image without yawp points and exactlymeasure the yarn diameter. Comparing with the actual yarn diameter, the computed yarn diameter accords with the actualdiameter, which proves that the yarn diameter measured by image processing method is accurate, exactly reflects theappearance features of the yarn such as slubs, neps and nips, and establishes the foundation for the automatic assessment of the yarn blackboard.

Date: 2007
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