204 search results - page 20 / 41 » Shift-invariance in the Discrete Wavelet Transform |
IJNSEC
2008
13 years 7 months ago
2008
Blocking artifact is one of the main drawbacks of the block-based watermarking method. Though a number of researches on "transparent" digital watermarking system have be...
ICIP
2006
IEEE
14 years 9 months ago
2006
IEEE
In this paper we propose a geometrical entropy coder to compress images with geometry. Our proposed scheme works on quantized coefficients of the discrete wavelet transform (DWT)....
JEI
2010
13 years 6 months ago
2010
Abstract. We present an innovative approach to the objective quality evaluation that could be computed using the mean difference between the original and tested images in different...
SIVP
2010
13 years 5 months ago
2010
We present a robust, hybrid non-blind MPEG video watermarking technique based on a high-order tensor singular value decomposition and the discrete wavelet transform (DWT). The core...
ICPR
2006
IEEE
14 years 8 months ago
2006
IEEE
In many situations it is convenient to represent pictorial data in the form of contours. It may become necessary to compress such contour data for efficient storage and transmissi...