50 search results - page 9 / 10 » DCT quantization noise in compressed images |
IJNSEC
2007
13 years 5 months ago
2007
In this paper, we propose a discrete cosine transform (DCT) based spread spectrum data-hiding algorithm that is resilient to statistical attacks. Unlike other spread spectrum base...
ICASSP
2010
IEEE
13 years 5 months ago
2010
IEEE
The widespread availability of photo editing software has made it easy to create visually convincing digital image forgeries. To address this problem, there has been much recent w...
CGF
2008
13 years 5 months ago
2008
Currently 3D animation rendering and video compression are completely independent processes even if rendered frames are streamed on-the-fly within a client-server platform. In suc...
JMM2
2008
13 years 5 months ago
2008
This paper presents a robust image watermarking scheme for multimedia copyright protection. In this work, host image is partitioned into four sub images. Watermark image such as `l...
ICIP
1997
IEEE
13 years 8 months ago
1997
IEEE
A novel algorithm is described for coding objects in video compression systems which gives complete control over the bit allocation to the video objects. The method is evaluated b...