Analyzing and Design Supporting System for Knit Fabrics. Part 1: Density Measurement of Plane Knit Fabrics Using Image Processing.

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  • 編地分析および設計支援システムの開発　（第１報）　　画像分析による平編ニットの密度計測
  • アミジ ブンセキ オヨビ セッケイ シエン システム ノ カイハツ ダイ1ポウ
  • Part 1 : Density Measurement of Plane Knit Fabrics Using Image Processing
  • (第1報) 画像分析による平編ニットの密度計測

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Abstract

A measurement system was developed to measure the density of knit fabrics automatically without destruc tion, and the applicability was discussed. The density of knit fabrics is concerned greatly with the appearance of the finish, so the measurement is very important for the design and reproduction. Computer image processing and information analysis were implemented in the system to measure the density. The surface images of knit fabrics were scanned by an image scanner and saved to disk on a computer. The threshold processing and histogram processing were performed to determine the positions of courses and wales. Then, the system counted the number of stitches in a course. The density, the number of courses and wales per the unit length, were measured for some plane stitch knit fabrics. The density measurement was successful for relatively coarse fabrics such as five gauges and was good for gauge of less than or equal to 12, but was sometimes incorrect for fine fabrics such as 20 gauge. This is caused by the resolution of the image scanner. If the resolution of the image increase, the measurements become successful. This system can be used instead of the current manual measurement using a textile analysis glass.

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