embedding robust watermark and fragile watermark in one image simultaneously, an algorithm of compound, adaptive digital watermarking was presented.
提出一种同时嵌入鲁棒性水印和易损性水印的复合型数字水印算法。
third, methods that combined reversible data hiding and fragile watermark to authenticate bmp and jpeg image accurately in blocks are proposed.
然后,结合无损信息隐藏方法与脆弱水印的原理,分别提出针对bmp和jpeg图像的分块精确认证方法。
fragile watermark is very sensitive to these attacks.
而易损水印对上述攻击则具有很强的敏感性。
experiment results show that fragile watermark is sensitive to tampering.
实验表明该易碎水印对篡改是敏感的。
in order to provide the anti-counterfeiting for brand authentication, a fragile watermark algorithm is designed and implemented based on the analysis of the process of cloth manufacturing.
in order to solve the problem of integrality authentication for low bit-rate video, a novel video authentication schema based on the fragile watermark is proposed.
为了解决低码率视频完整性认证问题,提出了一种基于脆弱水印的视频认证方案。
at the same time it embed fragile watermark in image's high frequency part with the use of dct so that fragile watermark can …
同时它利用离散余弦变换,在图像的高频部分嵌入脆弱水印,使脆弱水印在遭受攻击或篡改时更易被损坏。
then the fragile watermark for image authentication is analyzed, and its characteristics, its requirements and its classical algorithms are also given.
meanwhile, besides telling you whether an image has been tampered, the fragile watermark can reflect the distortion status truly and intuitively.
同时,脆弱性水印不仅能判断图像的真实性,还能準确、直观地定位篡改信息。
fragile watermark is embedded in the high frequency range by quantizating single coefficient, when the audio signal is tampered, the watermark information will change synchronously.
该文提出了一种在提升小波域同时嵌入鲁棒水印和易损水印的音频水印算法。
the concepts and theory about digital watermark are introduced in this paper. a kind of fragile watermark technology is given by means of digital image scrambling technology.
本文概括地介绍了数字水印技术的概念及原理,并利用数字图像置乱技术,给出了一种脆弱数字水印技术。
finally, the shortcoming of existing method on reversible data hiding and fragile watermark is analyzed and the possible developing direction is proposed.
a kind of fragile watermark based on chaotic map is proposed, which combines the initial condition sensitivity of chaotic system with this watermark fragility.