International Journal of Engineering Research and Development e-ISSN: 2278-067X, p-ISSN: 2278-800X, www.ijerd.com Volume 4, Issue 2 (October 2012), PP. 44-47 44 Analysis of Fabric Properties Using Digital Fabric Simulator Ms. Dharmistha D Vishwakarma Research Scholar, Dept. of Elect. Engg.,Faculty of Tech.& Engg., The M.S.University of Baroda, Vadodara, Gujarat, India Abstract:-The area of the digital image processing is getting more attention in the hope that it will increase the accuracy of any scientific measurements. One of many digital image processing applications is texture analysis. Fabric or cloth is a flexible artificial material that is made by a network of natural or artificial fibers. Fabric fault inspection is an important process in the textile industry. Faults present in the fabrics are the major reason of the rejection of the fabric which creates lots of loss to the industries. Fabric when processed in textiles the fault present can be detected by upgraded process for measurement of weft angle, fabric density can be identified using MATLAB with image processing techniques. This image processing technique [1] is done using MATLAB 7.10 using the image taken by the video camera. The Digital Fabric Simulator can detect the fault on the cotton, denim and polyester fabric considered in this paper. Keywords:- Fabric simulator, Weft Angle, Fabric Density, Haugh transformation I. INTRODUCTION Fabric fault inspection is an important process in the textile industry. Most of the industries get the loss due to the faults present in the fabrics. A complete fabric analysis comprises not only the inspecting arrangement of warp and weft threads of the fabric but also includes the quality, counting of the number of twisted yarns, weight of the fabric per yard, structure of fabric and other many parameters related to the types of fabric. Currently much of fabric inspection depends on human visual inspection which is very tedious and time consuming and even with the most trained inspectors. This inspector cannot detect the 100% defect of the fabric [1]. Performance and assessment of the inspector can affect by the load on that inspector and also due to the fatigue which cause the slow speed of human visual inspection compared to production rate, automatic inspection. Processing and analysing digital images of fabric using different techniques as Fourier transformation, wavelet transform approaches [2, 3]. Recently Automatic on-line quality control can be done using the video cameras and suitable software viz. MATLAB. The weft angle and fabric density are the two important parameters that take part in fault detection are considered in this paper. The parameters weft angle and fabric density is measured for the fabric type cotton, denim and polyester. II. FABRIC: A VISION A fabric is a piece of cloth. Fabrics can be made by using a number of techniques. A textile or cloth is a flexible woven material consisting of a network of natural or artificial fibers referred to as thread or yarn. Yarn is produced by spinning raw fibers of wool, flax, cotton, or other material to produce long strands. Textiles are formed by weaving, knitting, crocheting, knotting, or pressing fibers together (felt). The words fabric and cloth are used in textile assembly trades as synonyms for textile. Textile refers to any material made of interlacing fibers. Fabric refers to any material made through weaving, knitting, spreading, crocheting, or bonding that may be used in production of further goods. Fabrics knit mean woven together using “weft” and “warp” yarns. “weft” yarns are the thread that go back and forth, and “warp” are the up and down yarns parallel to the selvedge. These yarns are the structure for any kind of weave or pattern in a fabric. All sewers know the word “grain,” and this is referring to the weft and warp yarns. If a fabric is off grain there are two forms. Skew is when the “weft” yarns are not at a 90° angle to the “warp.” This occurs during processing and is common in printed fabrics before finishing. The second is called Bow and occurs when the “weft” yarns dip or curve in the center of the fabric. This also happens during processing. Fig 1 shows the internal structure of the fabric. Fig 1: Internal structure of Fabric