徐州工程学院学报（自然科学版）2026，Vol.41Issue(1)：46-53,8.
基于热力图和 SVD 的数字媒体抗摄屏水印技术研究
Screen-Capture-Resistant Watermarking Technology for Digital Media Based on SVD and Heat Maps
摘要
Abstract
To overcome the limitations of current watermarking technologies,such as fixed embedding strength and a low peak signal-to-noise ratio(PSNR),this paper presents a screen-capture-resistant watermarking method for digital media.This method is based on singular value decomposition(SVD)and heat maps.User interaction data with digital media is collected using FineReport,and user behavior features are extracted and user attention levels are calculated to generate digital media heat maps.These maps are then used to determine suitable watermark embedding areas and compute adaptive watermark embedding strength.An improved SVD algorithm decomposes the selected embedding region.The jointly encoded watermark information and its corresponding embedding strength are incrementally embedded through additive operations.After reconstruction,digital media embedded with the screen-capture-resistant watermark are obtained.Experimental results demonstrate that the embedding region identified by the proposed method aligns with the optimal embedding area and that the embedding strength corresponds to actual requirements.The maximum average PSNR achieved is 98.关键词
热力图/数字媒体/水印嵌入强度/SVD/抗摄屏水印/水印隐蔽性Key words
heat map/digital media/watermark embedding strength/singular value decomposition(SVD)/screen-capture-resistant watermarking/watermark concealment分类
信息技术与安全科学引用本文复制引用
龙凤..基于热力图和 SVD 的数字媒体抗摄屏水印技术研究[J].徐州工程学院学报（自然科学版）,2026,41(1):46-53,8.基金项目
教育部产学合作协同育人项目(220505372195138) （220505372195138）
