2327 search results - page 355 / 466 » Secure Image Filtering |
ACSAC
2008
IEEE
15 years 8 months ago
2008
IEEE
We present and evaluate various methods for purely automated attacks against click-based graphical passwords. Our purely automated methods combine click-order heuristics with focu...
ICMCS
2007
IEEE
15 years 7 months ago
2007
IEEE
In this paper, we study the security of an image scrambling algorithm based on Space-Filling Curves (SFC). A random SFC is a pixel permutation that changes the scanning order with...
121
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ICIAR
2010
Springer
15 years 6 months ago
2010
Springer
Two-factor authentication has been introduced in order to enhance security in authentication systems. Different factors have been introduced, which are combined for means of contr...
127
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TDHMS
2010
14 years 12 months ago
2010
For post incident investigation a complete reconstruction of an event is needed based on surveillance footage of the crime scene and surrounding areas. Reconstruction of the wherea...
ICIP
2005
IEEE
16 years 3 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...