基于局部自适应阈值和区域生长的水印分割算法研究  

Watermark Segmentation Based on Local Adaptive Threshold and Region Growth

作　　者：王杰 张梅 WANG Jie;ZHANG Mei(Graduate School,China People’s Police University,Langfang 065000,China;School of Immigration Management,China People’s Police University,Langfang 065000,China)

机构地区：[1]中国人民警察大学研究生院,廊坊065000 [2]中国人民警察大学移民管理学院,廊坊065000

出　　处：《印刷与数字媒体技术研究》2025年第2期47-55,共9页Printing and Digital Media Technology Study

基　　金：河北省高等学校科学技术研究重点项目——基于深度学习的证件防伪特征智能检测技术研究(No.ZD2022155)。

摘　　要：针对证件上的传统水印分割问题,本研究提出了一种基于局部自适应阈值和区域生长相结合的新型水印分割方法。首先通过局部自适应阈值算法将证件图像分割为生长区域和背景区域,以消除大面积背景干扰。随后,运用选取多种子点的区域生长算法,实现了对水印区域的准确分割。实验结果表明,该算法在复杂背景的条件下,依然能有效地提取出清晰的水印区域,从而在证件传统水印分割领域展现出其实用性和有效性。这一创新方法对于传统水印图像的处理具有重要意义,为其后续的识别、保护与分析提供了强有力的支持。In response to the traditional watermark segmentation problem on documents,a new watermark segmentation method based on local adaptive threshold and region growth was proposed in this study.The document image was segmented into growing regions and background regions by using a local adaptive threshold algorithm to eliminate large-scale background interference.Subsequently,the watermark region was accurately segmented by using a region growth algorithm with the selected multiple seed points.The experimental results showed that the watermark area under the condition of complex background can be extracted effectively by the new method,and demonstrates its practicality and effectiveness in the field of traditional watermark segmentation.This innovative method is of great significance for the processing of traditional watermark images and provides strong support for their subsequent recognition,protection,and analysis.

关 键 词：传统水印 图像分割 阈值分割 区域生长 

分 类 号：TS8[轻工技术与工程] TS761.4[自动化与计算机技术—控制理论与控制工程] TP18[自动化与计算机技术—控制科学与工程]