49 search results - page 6 / 10 » Non-uniform quantizer design for image data hiding |
ICIP
2007
IEEE
14 years 9 months ago
2007
IEEE
We present a method to compute the steganographic capacity for images, with odd-even based hiding in the quantized discrete cosine transform domain. The method has been generalize...
WSCG
2003
13 years 8 months ago
2003
In this paper, a new wavelet-domain codebook design algorithm is proposed for image coding. The method utilizes mean-squared error and variance based selection schemes for good cl...
ICIP
2008
IEEE
14 years 9 months ago
2008
IEEE
Privacy protection of visual information is increasingly important as pervasive camera networks becomes more prevalent. The proposed scheme addresses the problem of preserving and...
ICARCV
2002
IEEE
14 years 10 days ago
2002
IEEE
With the advances in digital imagery, large accessible data storage, internet repositories, and image applications, information conveyed through images is gaining in importance. T...
CVPR
2005
IEEE
14 years 9 months ago
2005
IEEE
We propose a camera that measures static gradients instead of static intensities. Quantizing sensed intensity differences between adjacent pixel values permits an ordinary A/D con...