2327 search results - page 2 / 466 » Secure Image Filtering |
TIP
2008
13 years 5 months ago
2008
The bilateral filter is a nonlinear filter that does spatial averaging without smoothing edges; it has shown to be an effective image denoising technique. An important issue with t...
ECRIME
2007
13 years 9 months ago
2007
In the last few years, obfuscation has been used more and more by spammers to make spam emails bypass filters. The standard method is to use images that look like text, since typi...
HIP
2005
Springer
13 years 10 months ago
2005
Springer
Abstract. Current CAPTCHAs require users to solve objective questions such as text recognition or image recognition. We propose a class of CAPTCHAs based on collaborative filterin...
ICIP
1999
IEEE
14 years 6 months ago
1999
IEEE
The performance of subband image coders depends on the proper choice of filter banks. It is therefore desirable to find algorithms for optimizing the filter banks. A theory for fi...
ICIP
2004
IEEE
14 years 6 months ago
2004
IEEE
