基于数字水印的提花织物品牌认证方法

The Jacquard Brand Authentication Method for Jacquard Based on Digital Watermark

针对提花织物防伪问题,在分析提花织物生产工艺的基础上,提出了一种用于真伪认证的基于小样图的易损盲水印算法。该算法首先设计了最小的水印编码方案,解决了张力平衡问题,并考虑了裁剪对水印的影响。经实际生产验证,该算法生成的水印对织物外观无可察觉影响,并能进行有效认证。采用该方法后将极大地增加假冒的难度和成本,是一种保护提花织物品牌的有效技术手段,也是数字水印技术在非数字媒质织物上应用的创新尝试。

In order to provide the anti-counterfeiting for brand authentication,a fragile watermark algorithm is designed and implemented based on the analysis of the process of cloth manufacturing. In this algorithm, a shortest watermark coding scheme is designed to maintain the temsility balance considering the watermark damage caused by cutting. Experiments show that watermark has no noticeable effect to the appearance, and it is useful for authentieation. The method is an effective technical means to authenticate for jacquard brand which greatly increases the cost and difficulties to forge products. It is also an innovation of watermarking technique which can be used in non-digital media texture.