To protect the copyright of image, non-watermark algorithm constructs marking meaning watermark by the characteristic structure of image instead of embedding s watermark by altering the data of image.

• 摘要图像零水印技术打破了常规水印算法修改图像数据以嵌入水印的作法，通过图像的特征构造具有标识意义的水印信息来实现图像的版权保护。