Free detection tool software for linux

cpdetector project is a small yet clever framework for codepage detection.

cpdetector is a small yet clever framework for codepage detection that integrates different strategies. It may be used as a library for third party software that accesses textual data over network.

It also includes a best-practice implementation in form of a command line tool that allows sorting and transforming large collections of documents based on their codepage.

Available strategies include: jchardet (exclusion, frequency analysis, and guessing), detection of the HTML charset property, and detection of the XML encoding declaration.

What is a code page?

At first, a textual document is nothing more than sequences of bits. A computer has to decide, how he can display this data in form of characters (which are identified by the computer as numbers).

A code page - which is also known as charset encoding - maps the raw data of a textual document to characters. The original ASCII code page for example only uses 7 bits of an octet (byte) for deciding the character that is represented thus allowing only to map 128 different characters. In the past memory was expensive and computers most often only had registers and busses for 8 bit.

When a mainframe was conceived it had to be decided, which characters it should support. Physicians and mathematicians for example needed special characters for equations. As a result, a computer often shipped with a special codepage.

ARPSpoofDetector performs active and passive detection of ARP spoofing and IP (IPv4) address collision. The program can send healing packets with regular ARP information.
ARPSpoofDetector is new GPL project initialized by NetMasters.CZ customers (specially 100MEGA Distribution). We didnt find suitable intrusion detection system or another applicable software to solve ARP spoofing detection and IP collision without false alarms and with easy configuration for our customers.
Main features:
- passive ARP spoofing detection from broadcast ARP reply packets
- passive IP collision detection from broadcast ARP packets and netbios packets
- active IP collision detection by sending ARP request packets
Log example:
Mon Jul 23 21:49:26 2007
Warning: IP 192.168.1.10 collision detected!
SERVER MAC address: 00:4f:ED:7C:3A:B9
ATTACKER MAC address: 00:20:38:7C:3A:CE
Attacker NETBIOS name: PERSEUS
Attacker NETBIOS group: WORKGROUP
Last attacker IP was 192.168.1.9
IP changes history:
From: Mon Jul 23 21:48:47 2007 To: Mon Jul 23 21:49:10 2007 was IP 192.168.1.3 (maybe over DHCP)
From: Mon Jul 23 21:49:10 2007 To: Mon Jul 23 21:49:26 2007 was IP 192.168.1.6 (maybe over DHCP)

Derbrill Tutorials are Free Tutorials For Writing Games and Multimedia Applications in Runtime Revolution with ArcadeEngine.

The tutorials come in a visually appealing e-book format which is both easy to read and use, the range of topics covered includes:

* The basics of Revolution such as: stacks, cards, scripts, messages and timers
* How to use geometric properties such as distances, angles and intersection rectangles
* Understanding and using different movements including linear, polygonal, circular and elliptic
* Advanced use of images
* Using the built-in collision detection

Dynamic Taste Detection patch makes XMMS adapt its playlist randomization function to your personal taste.

Songs you dont like end up at the end of the playlist, and songs you like to hear together tend to end up next to each other.

Radar Tools in short RAT is a small collection of tools for processing SAR (synthetic aperture radar) remote sensing data, packed together in a nice graphical user interface.
Our motivation to start the development of RAT is that modern remote sensing software like Erdas Image or ENVI include only some basic SAR functionality. Advanced algorithms have to be implemented by oneself.
So we descided to start the development of RAT. RAT should bring modern SAR algorithms to a wider user-base by simplifying in particular the data handling and processing of complex SAR data.
RAT is planned as an ongoing community effort, i.e. there will be no final version with a certain functionality. It is our idea to include more and more SAR tools in future and to make them freely available to the scientific community.
We of course also hope for external contributions. Because of this, the programming interface of RAT is kept quite simple and adding own functions is quite easy. Function templates are included in the distribution and a step-by-step description of how to program a RAT module will appear soon in the documentation.
Main features:
General features
- Cross-platform (Unix, Windows, Linux & Mac OSX)
- Free software, no commercial software license needed (when using the IDL-VM version)
- Availability of the complete source code
- Modular design, easy to extend by own functions
- Small memory footprint even when processing large images (vertical tiling)
- No limitation on the image size
- Keep track of data representation changes during image processing
- Optimised preview on screen while calculations are done in full resolution
- Native import routines for E-SAR (DLR) and ENVISAT-IMS (ESA) data
- Export possibility to generic graphic formats (png, jpg & tiff)
- Undo function for the last processing step
Generic image manipulation
- Resize, presumming & cut region
- Zooming of an area of interest
- Mirror vertical and horizontal
- Binary transforms
Single channel SAR
- SAR speckle filtering (Boxcar, Median, Gauss, Kuan, Frost, MAP Lee, refined Lee, Lee-Sigma)
- Edge detection (RoA, MSP-RoA, Sobel, Roberts)
- Co-occurance texture features, variation coefficient
- Point and distributed target analysis
- Generic slant-to-ground range projection
SAR polarimetry
- Polarimetric point target analysis
- Polarimetric speckle filtering (Boxcar, Lee, refined Lee)
- Polarimetric CFSAR edge detection
- Calculation of interchannel ratios, correlation & phase differences
- Formation of covariance and coherency matrix, span calculation
- Polarimetric basis transforms (linear -> circular ....)
- Decompositions (Pauli, Freman-Durdan, Moriyama, Entropy/Alpha, Eigenvalue, Sphere-Diplane-Helix....)
- Polarimetric classification (Entropy/Alpha/Anisotropy, Wishart, No. of scatterers, physical, Lee category preserving...)
- Polarimetric calibration: imbalance, symmetrisation & crosstalk (Quegan method)
SAR interferometry
- Image pair coregistration (coarse, subpixel & spatially varying)
- Interferogram formation
- Flat-earth removal
- Phase-unwrapping (least-squares only)
- Phase noise filter (Boxcar, Goldstein & GLSME)
- Coherence estimation (Boxcar, Gauss, Region Growing)
- Shaded relief calculation
Polarimetric SAR interferometry
- Formation of POLINSAR covariance and coherency matrices
- Coherence estimation & optimisation
- Extraction of optimised ESPRIT phases
- POLINSAR speckle filtering (Boxcar, Gauss & Lee)
- Coherence analysis in the complex unitary plane