Freeware Listing: Filtering
- Safesquid Content Filtering Proxy
- License: Freeware

Safesquid is an antivirus and content filtering proxy server. It has many advanced features like URL blacklists, bandwidth management, regular expression substitution on Website content and requested URL's, ICP and CARP support to interoperate with other proxy servers, configuration synchronization to ease management of proxy servers in a cluster, ICAP support to use third-party content adaptation software, image and link prefetching, HTTP and FTP content caching, NTLM and Basic authentication, and an intutive Web interface to configure the proxy server. Content Filtering Internet Proxy - SafeSquid.
- Publisher: Office Efficiencies (India) Private Limi
- Date: 10-08-2011
- Size: 771 KB
- Platform: Linux, Unix, Win2000, Windows Server, WinOther
- audio signal filtering
- License: Freeware

using this code user can actually feel the effect of filtering on audio signals and also see how filtering varies with changing the filter used.
- Publisher: rahul tulsian
- Date: 23-02-2013
- Size: 51 KB
- Platform: Matlab, Scripts
- Coherence-Enhancing Filtering
- License: Shareware

Coherence-Enhancing Filtering implements an automatic image and video abstraction technique based on adaptive line integral convolution and directional shock filtering.
You can load your image file and adjust the default settings of the filters t match your liking and then save the result.
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- Publisher: Jan Eric Kyprianidis
- Date:
- Platform: Win7 x64, Windows 7, WinOther, WinVista
- Anisotropic Kuwahara Filtering
- License: Shareware

Anisotropic Kuwahara Filtering implements an automatic image and video abstraction technique based on the anisotropic Kuwahara filter.
You can load your image file and adjust the default settings of the filters t match your liking and then save the result.
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- Publisher: Jan Eric Kyprianidis
- Date:
- Platform: Win7 x64, Windows 7, WinOther, WinVista
- TabMail
- License: Freeware

TabMail for Windows (95/98/Me/NT/2000/XP) is mail user agent (MUA) for sending, receiving and managing your email messages. It's small and fast, conforms Internet Standards and supports Unicode characters. Some other properties: * Automatic attachments compression with zlib library * Warn when open (or save) dangerous attachments * Message filtering (input and output) using regexp TRE library * Spam filtering using SpamBayes message header additions * Simple view of compound messages * Message-thread can span many mailboxes * HTML messages view as plain text (see htmlp for more details).
- Publisher: DLG
- Date: 09-07-2004
- Size: 1217 KB
- Platform: Win2000, WinOther
- FREE Parental Internet Filter
- License: Freeware

The software of Internet filter is best tool for parental controls mainly planned for managing the form of online content that is allowable to be viewed by a person. This in result control delivered material over the web. By controlling the type of online content which can be checked or websites which can be explored, this kind of program is in result censorship of content. Limitations can be applied in lots of different conditions and at different levels: like an administration to the state, an owner to its workers, a parent to a kid and a school to its students. For members with kids, a good variety of software related to internet filter available to solve these matters.
- Publisher: ParentalTools
- Date: 24-03-2008
- Size: 2457 KB
- Platform: Tablets, Win2000, Windows Server, Windows Vista, WinOther
- Firewall Tuneup
- License: Freeware

Firewall Tuneup is a rule based packet filtering firewall which helps control how computers share information with other computers through the Internet or a local network. Firewall Tuneup examines information that tries to enter a computer from an outside source (i.e. the internet), and determines if the information is safe or harmful. Here are some key features of "Firewall Tuneup": · Can be configured to deny or allow all traffic by default. · Can be configured for blocking or allowing only the connexion defined by the rules. · Easy configuration and high efficiency with low resources consumption.
- Publisher: SpeedApps Inc
- Date: 03-12-2007
- Size: 9015 KB
- Platform: Win2000, Windows Server, WinOther
- Naomi internet filter
- License: Freeware

Naomi - Advanced internet filtering program, easy to use and totally free Naomi is an advanced internet filtering program, easy to use and totally Free, intended for families and parents in particular.The filter is able to constantly monitor all internet connections, protecting children from inappropriate online material - such as obscene or violent contents; pornography and erotism in the form of images or texts; sites that popularize drugs; occultism; sects; gambling games; terrorism; hate propaganda; blasphemy, etc.Naomi is an internet filter which monitors all internet connections protecting children from inappropriate online material.
- Publisher: naomifilter.org
- Date: 13-08-2009
- Size: 1392 KB
- Platform: WinOther
- Porn Filter V
- License: Freeware

Special Intelligent Filtering Engine blocks porn contents in/out your Internet (such as Web sites, e-mails, net chat contents, FTP, P2P). The filtering engine examines in real-time all the data being transmitted and received through any Internet applications. Porn filter also block URLs you have defined.(supports WildCard Characters '?' and '*' in URL, also you can define a word such as 'porn', that means all URL contain word 'porn' will be blocked). You can also block all URLs except some special URLs you have defined not to block. None can stop filtering, except logining into NetDogAdmin to change setting by passwords.
- Publisher: NetDogSoft
- Date: 13-01-2011
- Size: 761 KB
- Platform: Win2000, Windows Server, WinOther
- phPOP3clean
- License: Freeware

PHP-based spam & virus/worm filtering for POP3 email accounts. Designed to run as a cron job and catch spam based on links to blacklisted IPs, obfuscated words or blacklisted phrases in the message body, attached-image spam, email worms and viruses, and corrupted or malformed emails..
- Publisher: phpop3clean.sourceforge.net
- Date: 09-11-2011
- Platform: PHP, Scripts
- JaMaRe - Java-based Mail Filtering
- License: Freeware

JaMaRe (JaMaRe ain't a Mail Reader) has grown out of my own need for a hacker's mail filter. JaMaRe has it's own internal mail folder system, and a very extensible filtering system. JaMaRe can also be used as Mail Router..
- Publisher: jamare.sourceforge.net
- Date: 26-06-2012
- Size: 47 KB
- Platform: Linux, Mac OS X, WinOther
- Sendmail Inline Filtering
- License: Freeware

This project aims to implement in-line filtering functionality for Sendmail. This will allow filters to process mail data on the wire (i.e. earlier). This is primarily intended for better status reports of in-transit mails..
- Publisher: inline-sendmail.sourceforge.net
- Date: 23-09-2012
- Size: 12 KB
- Platform: WinOther
- XQuiSoft Filtering
- License: Freeware

Spam Filtering algorithm support for email, blogs, or any other public documents using statistical bayesian techniques..
- Publisher: xqs-filtering.sourceforge.net
- Date: 18-05-2012
- Size: 381 KB
- Platform: WinOther
- Adaptive Filtering
- License: Freeware

MATLAB files to implement all Adaptive Filtering Algorithms in the book by Paulo S. R. Diniz,Adaptive Filtering Algorithms and Practical Implementation, Third Edition, Springer, New York, 2008 This book presents a concise overview of adaptive filtering, covering as many algorithms as possible in a unified form that avoids repetition and simplifies notation. It is suitable as a textbook for senior undergraduated or first-year graduate courses in adaptive signal processing and adaptive filters. The philosophy of the presentation is to expose the material with a solid theoretical foundation, to concentrate on algorithms that really work in a finite-precision implementation, and to provide easy access to working algorithms.
- Publisher: Paulo S. R. Diniz
- Date: 01-03-2013
- Size: 143 KB
- Platform: Matlab, Scripts
- Frequency-Domain Integration
- License: Freeware

A robust function that uses frequency-domain -i/frequency filtering to integrate a function. Edge-tapering is used to minimize aliasing errors..
- Publisher: Charles Rino
- Date: 08-03-2013
- Size: 51 KB
- Platform: Matlab, Scripts
- Fast Gaussian Filtering
- License: Freeware

A recursive implementation of the Gaussian filter. This implementation yields an infinite impulse response filter that has 6 MADDs per dimension independent of the value of sigma in the Gaussian kernel. Recursive Gabor filtering for 1D and 2D signals. For more information please visit: http://utenti.lycos.it/matlab/gabor.htm References: For a complete publication list of Lucas J. van Vliet please visit the following URL: http://www.ph.tn.tudelft.nl/~lucas/publica...papersLJvV.html.
- Publisher: Luigi Rosa
- Date: 04-05-2013
- Size: 10 KB
- Platform: Matlab, Scripts
- Noise Suppressor Using Adaptive Filters
- License: Freeware

This model uses the NLMS adaptive filtering algorithm to suppress additive noise. It does not require a reference noise signal. However, the noise should be such that the auto-correlation of the noise be close to zero for some lag greater than a certain number. This model implements the NLMS algorithm using Embedded MATLAB. There are two version of the model: One uses sample-based signals and the other uses frame-based signals..
- Publisher: Ali Behboodian
- Date: 13-04-2013
- Size: 10 KB
- Platform: Matlab, Scripts
- SNR for Coherent and Non-Coherent Filtering
- License: Freeware

A number of rules of thumb exist for the advantages of non-coherent averaging, I wanted to see, in a fairly practical way, what the advantage really was. This turned out to be more complex than I thought, because you have to identify and implement separate parts to the equations for the output noise. This file generates the input SNR, the Output SNR with no filtering, with coherent filtering, and with non-coherent filtering. I have added extensive notes to document my ignorance..
- Publisher: Rick McConnell
- Date: 09-06-2013
- Size: 10 KB
- Platform: Matlab, Scripts
- WSEdecomp
- License: Freeware

Split the signal S(SPACE,TIME) into its downward/upward space propagating and stationnary components via a 2D Fourier decomposition. S is a (SPACE,TIME) matrix. We eventually proceed to a space and/or time filtering. DT,DX are temporal and space step. PERIOD=[Tmin Tmax] and WAVELENGTH=[Xmin Xmax] are time and space band-pass filters specifications..
- Publisher: Guillaume MAZE
- Date: 16-04-2013
- Size: 10 KB
- Platform: Matlab, Scripts
- How to use FFT2
- License: Freeware

The note explains in detail how to apply the Matlab 2-dimensional FFT for filtering of two-dimensional signals, e.g. images. It is shown how to connect the output from fft2 to the actual Fourier transform of the signal, and in particular how transfer functions of simple filters may be coded..
- Publisher: Harald E. Krogstad
- Date: 11-04-2013
- Size: 102 KB
- Platform: Matlab, Scripts
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