20 search results - page 3 / 4 » Constrained Wavelet Tree Quantization for Image Watermarking |
JEI
2007
14 years 9 months ago
2007
In this work, we propose a novel fragile watermarking scheme in wavelet transform domain, which is sensitive to all kinds of manipulations and has the ability to localize the tamp...
DCC
2006
IEEE
15 years 3 months ago
2006
IEEE
A new approach of backward coding of wavelet trees (BCWT) is presented. Contrary to the common “forward” coding of wavelet trees from the highest level (lowest resolution), th...
JCP
2006
14 years 9 months ago
2006
Backward Coding of Wavelet Trees (BCWT) is an extremely fast wavelet-tree-based image coding algorithm. Utilizing a unique backward coding algorithm, BCWT also provides a rich set ...
DCC
2004
IEEE
15 years 9 months ago
2004
IEEE
In this paper, we build multi-resolution source codes using entropy constrained dithered scalar quantizers. We demonstrate that for n-dimensional random vectors, dithering followe...
DCC
1999
IEEE
15 years 2 months ago
1999
IEEE
The set partitioning in hierarchical trees (SPIHT) wavelet image coding algorithm can be interpreted as implicitly using classification in its bit-plane coding procedure. The sourc...