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» Image resizing in the discrete cosine transform domain
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MMSEC
2004
ACM
209views Multimedia» more  MMSEC 2004»
15 years 3 months ago
Robust DWT-SVD domain image watermarking: embedding data in all frequencies
Protection of digital multimedia content has become an increasingly important issue for content owners and service providers. As watermarking is identified as a major technology t...
Emir Ganic, Ahmet M. Eskicioglu
ICMCS
2006
IEEE
147views Multimedia» more  ICMCS 2006»
15 years 3 months ago
A Secret Key Based Multiscale Fragile Watermark in the Wavelet Domain
The distribution of the wavelet coefficients in 2-D discrete wavelet transform (DWT) subspaces can be well described by a Gaussian mixture statistical model. In this paper, a secr...
Hua Yuan, Xiao-Ping Zhang
VIS
2004
IEEE
187views Visualization» more  VIS 2004»
15 years 11 months ago
Methods for Efficient, High Quality Volume Resampling in the Frequency Domain
Resampling is a frequent task in visualization and medical imaging. It occurs whenever images or volumes are magnified, rotated, translated, or warped. Resampling is also an integ...
Aili Li, Klaus Mueller, Thomas Ernst
PAMI
2007
152views more  PAMI 2007»
14 years 9 months ago
DCT-Based Iris Recognition
—This paper presents a novel iris coding method based on differences of discrete cosine transform (DCT) coefficients of overlapped angular patches from normalized iris images. Th...
Donald M. Monro, Soumyadip Rakshit, Dexin Zhang
ICPP
1996
IEEE
15 years 1 months ago
On the Scalability of 2-D Wavelet Transform Algorithms on Fine-grained Parallel Machines
: We study the scalability of 2-D discrete wavelet transform algorithms on fine-grained parallel architectures. The principal operation in the 2-D DWT is the filtering operation us...
Jamshed N. Patel, Ashfaq A. Khokhar, Leah H. Jamie...