Abstract:

In order to solve the problem of long product design cycle and proofing time-consuming in yarn-dyed fabric, a new method was proposed for simulation of realistic yarn-dyed fabric using colored spun yarn images. Firstly, colored yarn images were capture and processed by threshold segmentation and morphological processing to obtain the yarn body. After that, the upper and lower boundaries and the center line of the yarn body were found, and then the main part of the original yarn image was obtained; Secondly, in ouder the shape of yarn on the surface of two dimensional fabric, the ellipse model and the sine curve model was applied to process image of the yarn main body. Finally, the cover relation of warp and weft yarn according to loops of dyed yarn and transformational model of fabric texture waschanged, realizing simulation of realistic striped and checked yarn-dyed fabric. Simulation results show that the proposed algorithm can simulation weaving process of different kinds of yarn-dyed fabric, and truly reflect the appearance of fabric. Parameters of loops of dyed yarn and fabric texture can be adjusted, improved the authenticity and adaptability of the present simulation algorithm.

Key words: colored spun yarn image, image processing, mathenatical model, yarn-dyed fabric, simulation