XIANG Yufeng,DENG Quanli,XU Zixin.Digital Watermarking for Binary Images[J].Journal of Chengdu University of Information Technology,2025,40(04):488-492.[doi:10.16836/j.cnki.jcuit.2025.04.013]
基于二值图像的数字水印系统
- Title:
- Digital Watermarking for Binary Images
- 文章编号:
- 2096-1618(2025)04-0488-05
- Keywords:
- digital watermarking; error diffusion algorithm; printing products anti-counterfeiting; binary image
- 分类号:
- TN911.73
- 文献标志码:
- A
- 摘要:
- 数字水印处理系统是一种用于图像中隐藏信息的技术,在需要时能够用于确认图像的真实性或所有权。设计了一种基于二值图像的数字水印处理系统,可在灰度图像中实时嵌入水印信息并对水印进行提取。水印嵌入时,先将图像转化成灰度图并将原始水印信息转化为一段比特流,设计的滤波器基于灰度级别来优化误差扩散,以增强水印的隐蔽性和抗干扰能力,所设计的滤波器被集成到多尺度误差扩散算法中,以实现对水印信息的高效嵌入。水印提取时,先将二值图像分割为若干像素块,通过傅里叶变换获取像素块横、纵两个方向的特征值,判断该像素块的水印信息比特,实现对水印信息的重组和提取。
- Abstract:
- A digital watermarking processing system is a technique used to hide information within images,which can be used to verify the authenticity or ownership of the image when necessary.This paper presents a design for a binary image-based digital watermarking processing system,capable of embedding watermark information into grayscale images in real time and extracting it subsequently.During watermark embedding,the image is first converted into a grayscale image,and the original watermark information is transformed into a bitstream.The designed filters,optimized for grayscale levels,enhance error diffusion to improve the stealth and anti-interference capabilities of the watermark.These filters are integrated into a multiscale error diffusion algorithm to efficiently embed the watermark information.For watermark extraction,the binary image is first divided into several pixel blocks.Using the Fourier transform,the feature values in both horizontal and vertical directions of the pixel blocks are obtained to determine the watermark bits of that block,culminating in the reconstitution and extraction of watermark information.
参考文献/References:
[1] 王向阳,杨红颖.基于自适应小波变换的图像数字水印算法[J]. 微型机与应用,2003(8):50-52.
[2] 周奕华,卢健,万晓霞,等.基于打印机和视觉模型的阶调误差扩散算法的研究[J]. 武汉大学学报(信息科学版),2006,31(9):826-828.
[3] 薛琼,朱艳萍.一种基于DCT变换的数字水印技术[J]. 舰船电子工程,2007,162(6):155-157.
[4] 王慧琴,李人厚.二值文本数字水印技术的研究与仿真[J]. 系统仿真学报,2004,16(3):521-524.
[5] 张磊,王汇源,刘晓阳.基于混沌加密和HVS的数字水印算法[J]. 信息技术与信息化,2005(3):41-42.
[6] 黄松,张伟,韦鹏程,等.一个基于矢量量化的数字水印算法[J]. 计算机工程与应用,2006(19):96-98.
[7] 徐南,李旺彦.二值图像数字水印技术综述[J]. 电脑知识与技术,2009,5(32):9043-9044.
[8] 周立.基于小波变换的二值图像数字水印算法研究与实现[D]. 武汉:中南民族大学,2011.
[9] 曾素云,林珊玲,林志贤,等.基于邻域灰度信息误差扩散算法的电润湿电子纸研究[J]. 液晶与显示,2019,34(3):317-323.
[10] 陈鑫,石东,张颖.基于FPGA的JPEG图像数字水印系统[J]. 数据采集与处理,2022,37(1):240-246.
[11] 侯庆政.基于二值图像数字水印技术的票据防伪方法研究[D]. 杭州:杭州电子科技大学,2015.
[12] 王树梅.数字图像水印技术综述[J]. 湖南理工学院学报(自然科学版),2022,35(1):31-36.
[13] 牛梦晨,徐梓欣,陈旭唏,等.分级图像显示技术研究[J]. 成都信息工程大学学报,2023,38(2):142-147.
[14] Xu Z,Chan Y.Improving Reversible Color-to-grayscale Conversion with Halftoning[J]. Signal Processing:Image Communication,2016,52:111-123.
[15] Chan Y,Xu Z,Lun P D.A Framework of Reversible Color-to-Grayscale Conversion With Watermarking Feature.[J]. IEEE Trans.Image Processing,2020,29:859-870.
备注/Memo
收稿日期:2024-01-13
基金项目:四川省科技厅资助项目(2020YFH0122)