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ICIP
2005
IEEE
16 years 9 months ago
Detecting spread spectrum watermarks using natural scene statistics
This paper presents novel techniques for detecting watermarks in images in a known-cover attack framework using natural scene models. Specifically, we consider a class of watermar...
Kalpana Seshadrinathan, Hamid R. Sheikh, Alan C. B...
ICIP
2004
IEEE
16 years 8 months ago
Security evaluation for communication-friendly encryption of multimedia
This paper addresses the access control issues unique to multimedia, by using a joint signal processing and cryptographic approach to multimedia encryption. Based on three atomic ...
Yinian Mao, Min Wu
ICIP
2002
IEEE
16 years 8 months ago
Contourlets: a directional multiresolution image representation
We propose a new scheme, named contourlet, that provides a flexible multiresolution, local and directional image expansion. The contourlet transform is realized efficiently via a ...
Minh N. Do, Martin Vetterli
ICIP
2001
IEEE
16 years 8 months ago
Minimum discrimination information clustering: modeling and quantization with Gauss mixtures
Gauss mixtures have gained popularity in statistics and statistical signal processing applications for a variety of reasons, including their ability to well approximatea large cla...
Robert M. Gray, John C. Young, Anuradha K. Aiyer
169
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ICIP
2001
IEEE
16 years 8 months ago
The orientation adaptive lapped biorthogonal transform for efficient image coding
A lapped biorthogonal transform adapted for local directionality of an image is proposed. The proposed transform consists of overlapping basis functions and non-overlapping basis ...
Toshihsa Tanaka, Y. Yamashita
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