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MMSEC
2005
ACM
129views Multimedia» more  MMSEC 2005»
13 years 10 months ago
Exposing digital forgeries by detecting inconsistencies in lighting
When creating a digital composite of, for example, two people standing side-by-side, it is often difficult to match the lighting conditions from the individual photographs. Lighti...
Micah K. Johnson, Hany Farid
MMSEC
2005
ACM
131views Multimedia» more  MMSEC 2005»
13 years 10 months ago
Capacity of steganographic channels
—This work investigates a central problem in steganography, that is: How much data can safely be hidden without being detected? To answer this question a formal definition of st...
Jeremiah J. Harmsen, William A. Pearlman
MMSEC
2005
ACM
116views Multimedia» more  MMSEC 2005»
13 years 10 months ago
An SVD-based audio watermarking technique
We present a non-oblivious, extremely robust watermarking scheme for audio signals. The watermarking algorithm is based on the SVD of the spectrogram of the signal. The SVD of the...
Hamza Özer, Bülent Sankur, Nasir D. Memo...
MMSEC
2005
ACM
113views Multimedia» more  MMSEC 2005»
13 years 10 months ago
A secure biometric authentication scheme based on robust hashing
In this paper, we propose a secure biometric based authentication scheme which fundamentally relies on the use of a robust hash function. The robust hash function is a one-way tra...
Yagiz Sutcu, Husrev T. Sencar, Nasir D. Memon
MMSEC
2005
ACM
137views Multimedia» more  MMSEC 2005»
13 years 10 months ago
A fragile watermarking scheme for 3D meshes
In this paper, we propose a new fragile watermarking scheme for 3D meshes. Firstly, the watermark information is adaptively embedded into the mesh geometry by slightly adjusting t...
Hao-Tian Wu, Yiu-ming Cheung