Semi-fragile Watermarking and Authentication for Law Enforcement Applications
, 2007 In this paper, a semi-fragile watermarking method for authentication of law enforcement images such as digital images captured at crime scenes and traffic enforcement situations is proposed using the pinned sine transform (PST).
Ho, ATS, Anthony T.S. Ho
core +1 more source
Security on Fragile and Semi-fragile Watermarks Authentication
International Journal of Computer Applications, 2010 ABSTRACT Digital image manipulation software is now readily available on personal computers. It is therefore very simple to tamper with any image and make it available to others. Ensuring digital image security has therefore become a major issue. Watermarking has become a popular technique for copyright enforcement and image authentication.
Shilpi Saha +2 more
openaire +1 more source
A robust semi-fragile watermarking system using Pseudo-Zernike moments and dual tree complex wavelet transform for social media content authentication. [PDF]
Multimed Tools Appl, 2023 Agilandeeswari L +2 more
europepmc +1 more source
A fragile watermarking scheme for authentication of semi-regular meshes
, 2008 International audienceThis paper presents a fragile watermarking scheme for authentication of 3D semi-regular meshes. After one wavelet decomposition, the watermark is inserted by slightly modifying the norms and orientations of the obtained wavelet ...
Denis, Florence +3 more
core +4 more sources
Security of fragile watermarking scheme for image authentication
, 2012 [[abstract]]Recently, Lu et al. proposed a fragile watermarking scheme to prevent the quantization attack. However, the present study shows that the modified scheme's objective as a fragile watermark is unfortunately lost, because it is possible for any ...
廖冠捷;Liao, Kuan-Chieh
core
A transparent semi-fragile watermarking scheme for 3D models
, 2010 碩士我們的研究主要是在無遠弗屆的網路上利用semi-fragile watermarking來確保3D models的完整性。浮水印是以3D model本身的資訊及種子數（如使用者的合法註冊號碼）產生的亂數所組成，不需使用額外的資訊。驗證浮水印時只要以原種子數利用簡單的數學運算便可以評斷models的完整性。我們所提的方法可以抵擋放大、縮小、平移等常見的3D models處理，也可以抵擋點順序重新排序等攻擊。嵌入方法對3D models外型的影響非常小，因此本方法適用於精密機具或醫學的3D models。
陳瑀穎; Chen, Yu-ying
core
Robust and Semi-fragile Watermarking Techniques for Image Content Protection
, 2009 In this report, the concept of robust and semi-fragile watermarking is described for copyright protection and authentication of digital images. A number of different transforms and algorithms used for robust and semi-fragile image watermarking are ...
Zhao, Xi
core
Analisis dan Implementasi Semi-Fragile Watermarking untuk Autentikasi Citra Digital Berdasarkan Integer Wavelet Transform (IWT) [PDF]
, 2010 ABSTRAKSI: Sejalan dengan bertambahnya fungsi dan peran media digital dalam berbagai aspek kehidupan manusia, maka bertambah pula jumlah dan kualitas data digital yang didistribusikan lewat jaringan komputer khususnya internet.
Silvi Puspita Ningrum
core
, 2020 With the tremendous growth and use of digital cameras and video devices, the need to verify the collected digital content for law enforcement applications such as crime scene investigations and traffic violations, becomes paramount if they are to be used
Ho, ATS, Zhao, X
core +1 more source
Dual Domain Semi-Fragile Watermarking for Image Authentication,” M.A.Sc. thesis
, 2003 Techniques to establish the authenticity and integrity of digital images are becom-ing increasingly essential for secure transacting. Ideally, the authentication algorithm should distinguish incidental integrity maintaining distortions such as lossy ...
Yang Zhao
core