274 search results - page 18 / 55 » Anti-forensics of JPEG compression |
ICB
2007
Springer
14 years 1 months ago
2007
Springer
The impact of using different lossy compression algorithms on the matching accuracy of iris recognition systems is investigated. In particular, we relate rate-distortion performan...
ICIP
2000
IEEE
14 years 6 days ago
2000
IEEE
We have developed a scalable image compression scheme with a good performance-complexity trade-off. Like JPEG, it is based on the 8 × 8 block discrete cosine transform (DCT), but...
IJHPCA
2008
13 years 7 months ago
2008
Principal component analysis (PCA) is an effective tool for spectral decorrelation of hyperspectral imagery, and PCA-based spectral transforms have been employed successfully in co...
ICIP
2004
IEEE
14 years 9 months ago
2004
IEEE
To efficiently compress rasterized compound documents, an encoder must be content-adaptive. Content adaptivity may be achieved by using a layered approach. In such an approach, a ...
ICIP
2004
IEEE
14 years 9 months ago
2004
IEEE
Face detection is important in many algorithms in the areas of machine object recognition and pattern recognition. The kaleidoscope of applications for face detection extends acro...