18 search results - page 2 / 4 » Adaptive Public Watermarking of DCT-Based Compressed Images |
JMM2
2008
13 years 5 months ago
2008
In this work, an adaptive image compression algorithm is proposed based on the prediction of AC coefficients in Discrete Cosine Transform (DCT) block during reconstruction of image...
ICIP
2002
IEEE
14 years 6 months ago
2002
IEEE
The spatial resolution of the human visual system (HVS) decreases rapidly away from the point of fixation (foveation point). By exploiting this fact, we propose a watermarking app...
CAIP
2005
Springer
13 years 10 months ago
2005
Springer
Abstract. This paper presents a color filter array (CFA) image indexing approach. To enhance the functionality of single-sensor consumer electronics such as digital cameras, imagi...
IJIT
2004
13 years 6 months ago
2004
In this paper we investigate the watermarking authentication when applied to medical imagery field. We first give an overview of watermarking technology by paying attention to frag...
JMM2
2006
13 years 5 months ago
2006
In image authentication research, a common approach is to divide a given image into a number of smaller blocks, and embed a fragile watermark into each block. The modifications can...