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» In-Place Algorithm for Image Rotation
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ICIP
2004
IEEE
14 years 10 months ago
Rotation and cropping resilient data hiding with zernike moments
Most digital data hiding schemes are sensitive to simple geometric attacks namely rotation, cropping, and scaling. Of these, rotational attacks possess the capability to not only ...
Palak K. Amin, Koduvayur P. Subbalakshmi
CVPR
2008
IEEE
14 years 3 months ago
Rotation symmetry group detection via frequency analysis of frieze-expansions
We present a novel and effective algorithm for rotation symmetry group detection from real-world images. We propose a frieze-expansion method that transforms rotation symmetry gro...
Seungkyu Lee, Robert T. Collins, Yanxi Liu
ICPP
1989
IEEE
14 years 26 days ago
Hypercube Algorithms for Image Transformations
Efficient hypercube algorithms are developed for the following image transformations: shrinking, expanding, translation, rotation, and scaling. A 2k −step shrinking and expandi...
Sanjay Ranka, Sartaj Sahni
TMM
2002
117views more  TMM 2002»
13 years 8 months ago
Rotation invariant texture characterization and retrieval using steerable wavelet-domain hidden Markov models
We present a new statistical model for characterizing texture images based on wavelet-domain hidden Markov models. With a small number of parameters, the new model captures both th...
Minh N. Do, Martin Vetterli
CVPR
2008
IEEE
14 years 11 months ago
Conjugate rotation: Parameterization and estimation from an affine feature correspondence
When rotating a pinhole camera, images are related by the infinite homography KRK-1 , which is algebraically a conjugate rotation. Although being a very common image transformatio...
Christian Beder, Kevin Köser, Reinhard Koch