Device for measuring density of weft knitted fabric based on image analysis

Abstract

The invention relates to a device for measuring density of a weft knitted fabric based on an image analysis, which is characterized in that the device comprises a fabric tension force apparatus (1), a fabric image acquisition apparatus (2) and weft knitted fabric density detection software, the fabric image acquisition apparatus (2) is connected to a computer through data lines, the weft knitted fabric density detection software is installed on the computer, the weft knitted fabric density detection software comprises a two dimensional discrete Fourier transform module, a characteristic peak point location module, and a weft knitted fabric horizontal density and vertical density calculating module. According to the invention, an image processing technology is used for realizing the automatic detection of the horizontal density and vertical density, thereby a current method for detecting the density of the weft knitted fabric can be replaced, and the detection accuracy of the weft knitted fabric density can be enhanced, the productivity of operators can be simultaneously liberated, and the method is suitable for modern weaving automation production.

Description

technical field [0001] The invention relates to a weft-knitted fabric density detection device based on image analysis. It belongs to the field of textile technology. Background technique [0002] In the production of textiles, it is often necessary to reproduce according to the fabric samples to obtain products consistent with the specifications of the samples. Before production, it is first necessary to analyze the fabric sample to obtain the sample parameters, and the fabric density is one of the most important parameters. The method currently adopted by weft knitting enterprises is to count the number of loops per unit length by specialized analysts with the aid of magnifying equipment such as cloth mirrors, so as to obtain the density of weft knitted fabrics. Generally, it is necessary to count the number of stitches within 50 mm in different regions of the knitted fabric for 5 times, and the average value of the 5 results is used as the measurement method for the den...

AI Technical Summary

Problems solved by technology

From the above analysis, it can be seen that the method of manually analyzing and detecting the density of weft-knitted fabrics takes a long time, and the detection process is highly subjective and labor-intensive. It is difficult to meet the needs of modern textile enterprises for automated production.

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