基于图像分割技术的摄影图像数字水印算法  

Digital Watermarking Algorithm of Photographic Images Based on Image Segmentation Technology

作　　者：赵媛[1] 陈莹 韩烨 ZHAO Yuan;CHEN Ying;HAN Ye(Zhengzhou College of Finance and Economics,Zhengzhou 450000,China)

机构地区：[1]郑州财经学院,郑州450000

出　　处：《移动信息》2025年第2期302-304,共3页Mobile Information

摘　　要：由于摄影图像具有高度的复杂性和多样性,导致水印在受到攻击时完整度相对较低.针对上述问题,文中提出了基于图像分割技术的摄影图像数字水印算法.其采用Arnold变换强化图像安全,RGB转YCrCb优化色彩处理,两层离散小波变换深入剖析图像多尺度特征.通过形态学腐蚀优化与智能合并策略,深度分割预处理图像,生成清晰界定的图像块集合.选取对比度最高的子块,利用离散小波变换的低频子带结合量化抖动调制技术,隐蔽而鲁棒地将水印信息嵌入图像中.在提取阶段,能集成图像分割、Daisy变换精准定位、BSP树精细划分、Arnold逆变换精确提取并还原图像水印.实验结果表明,该设计方法能显著提升水印在多种攻击场景下的鲁棒性,确保水印信息的完整可靠.Due to the high complexity and diversity of photographic images,the integrity of the watermark is relatively low when under attack.For the above problems,a digital watermark algorithm of photographic image based on image segmentation technology is proposed.The Arnold transform is used to strengthen image security,RGB turns to YCrCb to optimize color processing,and two layers of discrete wavelet transform to deeply analyze the multi-scale features of the image.Through morphological corrosion optimization and intelligent merging strategy,the image is pre-processed to generate a clearly defined set of image blocks.The subblock with the highest contrast is selected,and the low frequency subband of discrete wavelet transform combined with quantitative jitter modulation technology is used to embed the watermark information in the image secretly and reliably.In the extraction stage,it integrates image segmentation,Daisy transform precise positioning,BSP tree fine division,and Arnold inverse transformation accurately extracts and restores the image watermark.The experimental results show that the design method can significantly improve the robustness of watermark in multiple attack scenarios,and ensure the integrity and reliability of watermark information.

关 键 词：图像分割技术 数字水印算法 水印嵌入 水印提取 

分 类 号：TP309.7[自动化与计算机技术—计算机系统结构]