160 search results - page 11 / 32 » Image resizing in the discrete cosine transform domain |
ICASSP
2007
IEEE
15 years 4 months ago
2007
IEEE
Recently, Narozny et al [1] proposed a new viewpoint in variable high-rate transform coding. They showed that the problem of finding the optimal 1-D linear block transform for a ...
Publication
This paper proposes a self-authentication scheme for color images, using a fragile data hiding method based on the Discrete Pascal Transform (DPT). The main contribution of this wo...
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GI
2009
Springer
15 years 2 months ago
2009
Springer
Abstract: We present a technique for adding a high-frequency pattern to JPEG images that is imperceptible to the unaided eye, but turns into a clearly readable largeletter warning ...
119
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MEDIAFORENSICS
2010
14 years 8 months ago
2010
Error correction codes of suitable redundancy are used for ensuring perfect data recovery in noisy channels. For iterative decoding based methods, the decoder needs to be initiali...
ICASSP
2011
IEEE
14 years 1 months ago
2011
IEEE
Integer lapped orthogonal transforms (LOTs) are vital technologies for the unification of lossless and lossy image coding, called losslessto-lossy image coding. In this paper, we...