Abstract: In order to simplify the design for small-pattern dobby fabric weaves, an intelligent design method for determined harness numbers and different warp and weft circulation based on image processing was proposed in this article, in which the complex images can directly apply to the design of dobby weaves. By analyzing the principle of dobby weaves, the drafting plan, chain plan and weave diagram can be converted to the corresponding weave matrix. Then according to the mathematical model of optimized harness numbers, the looming draft would suitable for dobby weaving within determined harness numbers. Comparing the weaves before and after, the result shows that the images are basically the same with no significant change. Finally, VB programming language also achieves to the realization of CAD.

Key words: small-paattern dobby fabric, weave design, optimization of harness number, looming draft, mathematical model