14 search results - page 3 / 3 » Lossless Image Compression and Selective Encryption using a ... |
TMM
2002
13 years 4 months ago
2002
In this paper a hybrid fractal and Discrete Cosine transform (DCT) coder is developed. Drawing on the ability of DCT to remove inter-pixel redundancies and on the ability of fracta...
ICIP
2005
IEEE
14 years 6 months ago
2005
IEEE
This paper presents a novel Mod-4 steganographic method in discrete cosine transform (DCT) domain. A group of 2?2 quantized DCT coefficients (GQC) is selected as the valid embeddi...
BIOID
2008
13 years 6 months ago
2008
Abstract. Gabor filters have demonstrated their effectiveness in automatic face recognition. However, one drawback of Gabor-based face representations is the huge amount of data th...
ICIP
2002
IEEE
14 years 6 months ago
2002
IEEE
In this paper a fully automatic system for embedding visually recognizable watermark patterns to video objects is proposed. The architecture consists of 3 main modules. During the...