Abstract: An algorithm of digital watermarking based on encoding and 2D barcode is introduced.The basic idea is first carries on 0，1 two values to the 2D barcode，then divides result into blocks，and carries on encoding to each block，finally organizes the picture which is formed by merging each sub-block according to the specific arranged as the watermark.The author carries out transform domain method to realize watermark embedment，first carries on the wavelet transform to the carrier picture，then inserts the watermark to low frequency coefficients of the wavelet transform result according to the human eye visual characteristic.The experimental result indicates this method has a better robustness and invisibility.

Key words: human visuals character, DWT, 2D barcode, digital watermarking, encode

摘要： 提出了一种基于编码和二维条形码的数字水印算法，基本思想是先对二维条形码进行0、1二值化，再对结果进行分块，并且对各个子块进行编码，最后将各子块合并以后的图像按照特定顺序排列作为水印。采用变换域方法实现水印嵌入，先对载体图像进行小波变换，再根据人眼的视觉特性将水印嵌入到小波变换的低频系数上。实验结果表明该方法具有较好的鲁棒性和不可见性。

关键词: 人眼视觉特性, 小波变换, 二维条形码, 数字水印, 编码