A photograph-based approach for visual simulation of wrapped Jacquardtronic lace

Abstract

A computing approach is proposed in this paper to simulate wrapped Jacquardtronic® lace appearance based on wrapped yarn photographs. The approach focuses on the determination of yarn color distribution functions using yarn photographs and extracted hue, saturation and value meshes in HSV color mode. Section curves of these meshes are fitted with a piecewise linear fitting algorithm and least-squares method to respectively describe the distribution functions of dull, semi-dull and shinning wrapped yarns. A modified depth-buffer method is also selected for visible lapping detection when dealing with multi-bar lapping coverage on the simulation plane. With the photograph-based approach, a simulator is implemented for visualization of wrapped Jacquardtronic lace via the Visual C++ programming language. It is confirmed that the developed method is capable of simulating sophisticated wrapped Jacquardtronic® lace with a superior stereoscopic impression and high efficiency.