Lossless Data Compression

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Lossless data compression - Lossless data compression is a class of data compression algorithms that allows the exact original data to be reconstructed from the compressed data. Contrast with lossy data compression.

Meridian Lossless Packing - Meridian Lossless Packing is a proprietary lossless compression technique for compressing PCM audio data. MLP is the standard lossless compression method for DVD-Audio content (often advertised with the Advanced Resolution logo), and typically provides about 2:1 compression on most music material.

Data compression ratio - Data compression ratio is a computer term used to quantify the reduction in data quantity produced by a data compression algorithm. A data compression ratio is much like a physical compression ratio used to measure the physical compression of substances.

Adaptive coding - Adaptive coding refers to variants of entropy encoding methods of lossless data compression. They are particularly suited to streaming data, as they adapt to localized changes in the characteristics of the data, and don't require a first pass over the data to calculate a probability model.


Suggested Web Sites

Maximum Compression - Aims to show the maximum achievable lossless data compression ratio for several filetypes (text, executable, bmp). The best 150+ programs for every filetype are shown in a table indicating compression ratio and switches/options used to achieve that compression.

The Art of Lossless Data Compression - Results of tests performed to compare lossless compression of various data by all known good enough programs. Descriptions of test terms and files. Links to related programs, and pages.

Smacker Video Technology - A compressor for video, animation and sound data includes video compression with twice the video quality and now uses the Bink audio codec for perceptually lossless 8 to 1 compression.

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Image Compression Software - Image Compression Software Digital Image Processing Using MATLAB This is ... a balanced treatment of image processing basics image compression software and software principles used in the practical ... major areas covered include intensity transformations, linear image compression software and nonlinear spatial filtering, filtering in ...

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Trademark Global 200 Piece Steel Zinc Plated Springs Shop Assortment : TMK1774: Ships Via Small Parcel Ground Features: 200 Pieces Steel Zinc Plated Springs Shop Assortment Set includes 20 sizes and styles: 10 - 9/32'' x 1/2'' compressed, 10 - 13/64'' x 13/16'' extended, 6 - 3/8'' x 5/8'' compressed, 8 - 5/16'' x 1-1/8'' extended, 10 - 1/4'' x 13/32'' compressed, 10 - 7/32'' x 1'' extended, 12 - 3/8'' x 3/4'' compressed, 10 - 7/32'' x 11/16'' compressed, 10 - 1/4'' x 7/8'' extended, 10 - 5/16'' x 1-1/4'' extended, 12 - 3/16'' x 1-27/32'' extended, 12 - 5/16'' x 1-3/4'' extended, 12 - 9/32'' x 2-13/16'' extended, 12 - 5/32'' x 3-1/8'' extended, 8 - 23/64'' x 1-3/8'' compressed, 8 - 3/16'' x 1-3/4'' extended, 10 - 9/32'' x 1-1/2'' extended, 10 - 7/32'' x 1-1/2'' compressed, 10 - 9/32'' x 3/4'' compressed, 10 - 11/32'' x 1-7/16'' extended Complete with clear-view re-closeable organizer case fits right in your tool box Hard-to-find assortment of steel springs Includes both compressed and extended springs Essential for auto, small engine and home repair, durable 75 lb spring steel, zinc-plated Twenty of the most common spring sizes and styles An outstanding v...

Verbatim DVD+RW 4.7GB 4X 10pk Jewel Case : Verbatim's 4X DVD+RW media can record 120 minutes of high quality video or 4.7GB of data in approximately 15 minutes. Certified to write and rewrite at 1X to 4X speeds Verbatim DataLifePlus 4X DVD+RW discs can be used with high speed DVD+RW writers from Sony, HP, Dell and other leading manufacturers. Verbatim DataLifePlus DVD+RW media also provide broad read compatibility with most DVD-ROM drives and DVD-Video players in use today. DataLifePlus DVD+RW discs are manufactured with a proprietary process based on Super Eutectic Recording Layer? (SERL) technology that provides accurate recording at high speeds, noise-free playback, and long archival life. Verbatim DVD+RW media supports multi-session writing and lossless linking technologies, giving users the freedom to quickly add documents, data and video segments without having to open and close write sessions. With a capacity of 4.7GB, 1,000 rewrites, a write speed of 4X and the ability to easily append data, Verbatim 4X DVD+RW media offer an affordable solution for home and professional video recording, multimedia development, digital photo a...

Excel Data Analysis: Your Visual Blueprint for Creating and Analyzing Data, Charts, and PivotTables [With CDROM] : Excel is a spreadsheet / data analysis tool attached to the Microsoft Office suite and is available in all Office offerings. Office holds 80-90% of the market share for productivity suites. Though many consumers know the basics of using Excel, they may not know the full power of the program. With Excel, you can harness the power of your data, manipulate it to suit your needs, and achieve more by doing less work. Charts are interactive, allowing the consumer to tweak results with the click of a mouse. Pivot tables allow you to fuse data from several sources into one document. Excel has an enhanced Find function, allowing users to easily search entire workbooks, and search worksheets by cell format. Excel supports XML as a file format for easy importing or exporting of XML data. Excel also includes enhancements for saving files as Web pages, and enhancements to Pivot Tables.

Garmin Forerunner 205 GPS Receiver and Sports Watch, 010-00466-00 : Garmin Forerunner 205 Personal Trainer: Tracks your every move with a super-sensitive GPS that even works on tree-covered trails and near tall buildings Receive a detailed, post-workout analysis on the PC with included Training Center software Sleek, stylish, lightweight design "wraps" the GPS antenna around part of the wrist for a better view of the sky, improving reception during training New Features: High sensitivity GPS receiver provides faster acquisition times and improves tracking under trees and near tall buildings Customizable screens let you view up to 12 data fields on 3 data screens for immediate feedback on the information you need most when training Multi-sport capability lets you seamlessly transition between sports without resetting the unit, so you can use it for running, biking, and more Easy to use no calibration required. Just turn it on and go Courses Feature: lets you download recorded courses and compete against previous workouts Additional Features: Auto Pause: pauses and resumes training timer based on a specified speed, so you never have to start or stop the tim...

Garmin Edge 305 Bicycle GPS Navigator with Heart Rate Monitor and Speed/Cadence Sensor 010-00447-30 : Easy-to-install: no calibration required. Just snap it in the included bike mount and go High-sensitivity GPS receiver knows your position even in tree cover and canyons, making it extremely reliable for navigation Customizable cycle computer shows up to eight different data fields for continuous feedback Virtual Partner lets you "race" a virtual competitor, making training fun Course lets you "race" against a recorded course to try to match previously set speeds at every point along the way Auto Pause pauses the training timer when you slow down below a specified speed and resumes when you speed up again so you can focus on your ride Auto Lap automatically triggers a lap every time you pass a specified location or travel a preset distance Training Center software gives you the ability to create workouts, manage and download courses, and create a detailed post-ride analysis that charts your performance. The heart rate monitor lets you see whether you are training too hard or not enough. The heart rate monitor uses a robust wireless technology that eliminates cross-talk and interference and s...

Thecus N4100 Pro 4-Bay NAS Server : Feature System Information at a Glance - Equipped with a big, bright LCM module, the N4100PRO displays useful status messages such as IP address, date and time, and RAID status, making it easy for users to keep an eye on the condition of their N4100PRO. With the LCM module, N4100PRO users can even configure the unit in a dimly-lit living room for added convenience. Flexible Secure Storage Options - The N4100PRO also improves on its predecessor by adding RAID 6 and RAID 10, providing users have even more options for data storage. What's more, the N4100PRO also supports RAID expansion, allowing users to add more storage to their RAID volumes as their needs arise. With the N4100PRO, users have the flexibility to store their data their way. Superb Network Reliability - Being able to connect to your storage unit at all times is essential. That's why the N4100PRO comes with network bonding in fail over mode. With this feature, the N4100PRO can automatically switch to its second Gigabit Ethernet port should the first one fail for any reason. The result is a zero network downtime and increased reli...

Brother PED-Basic : For downloading embroidery designs 4 frame sizes Using your computer and the PED-Basic software, you can download PES-format embroidery data from the Brother Web site or from another embroidery data distribution site Downloaded or imported embroidery data can be previewed or edited on the screen Write the PES data to the included Brother blank memory card To sew beautiful embroidery, simply insert the card into a Brother embroidery machine Embroidery data (.pes files) can be purchased or downloaded from the Internet Software is compatible with Windows 98 operating system or later Currently available online only Model No.

La Crosse Technology Wireless Bronze Weather Channel Thermometer & Digital Clock : LCT1119: Ships Via Small Parcel Ground All La Crosse Technology weather instruments, clocks and watches are calibrated daily to the atomic time standard of the National Institute of Standards and Technology. All instruments default to Fahrenheit, inches, mph and all atomic time pieces are tuned to the 60 kHz, WWVB radio signal broadcast by the National Institute of Standards and Technology at Fort Collins, Colorado. The included software requires WindowsTM 98 or above, Pentium 166 or higher, 32M of RAM, 20M of hard drive space, and a CD-ROM drive to install. The software can remove stored data from the interface and place it in a file on the PC's hard drive. Selected data can be exported as an ASCII file for use in other programs (such as Excel). Also, graphs, charts, and data lists can be generated from the stored data (for example, wind speed and direction for January 2004). Features: Wireless outdoor temperature ( F/ C) Monitors indoor temperature ( F/ C) Records MIN/MAX temperature with time and date of recording Wall hanging or free standing Detachable stand included Can receive up to ...

Transcend StoreJet 25M Mobile 2.5" 250GB USB Portable Hard Drive : Transcend's StoreJet mobile is compact and portable. To protect against data loss or damage from accidental slips or falls, the StoreJet mobile meets the U.S.military drop-test standards MIL-STD-810F. With advanced two-stage anti-shock technology, which makes it one of the safest place to store your data. In order to ensure maximum compatibility with most desktop and notebook computers, the StoreJet 25 mobile uses a high-speed USB 2.0 interface which provides data transfer rates up to 480Mb per second while offering the convenience of easy plug and play. 250GB capacity Meets the U.S.military drop-test standard MIL-STD-810F with advanced two-stage anti-shock technology Hi-Speed USB 2.0 compliant and USB 1.1 backwards compatible OneTouch Auto-Backup function Easy Plug and Play installation Powered via the USB port (no external power or battery needed) To ensure the StoreJet receives a sufficient amount of stable power while in use it is recommended to use the USB-Y cable's connectors with your computer Software pack: StoreJet elite (helps you manage your data) LED indicates Power ON and data t...

Q-SEE QSD6209-2509 channel internet monitoring mpeg4 DVR with 250GB hard drive : This Q-See digital video recorder will record video input from the security cameras connected to this unit. With up to 9 cameras connected to a TV or LCD flat screen, you can monitor 9 locations at a time and record the data into the pre-installed 250GB hard drive. With the RJ-45 connection you can even monitor remotely from anywhere through a LAN or the Internet. MPEG4 video gives you good quality video and good compression to save hard drive space. Q-See¿s Digital Video Recorders (DVRs) are designed to manage multiple cameras, and enable users to view, record and playback recorded video locally or over the Internet. This DVR can support up to 4 cameras, and can be integrated into your current security system. With Q-See, surveillance can be handled remotely ¿ worldwide. For Product Questions contact Q-SEE: (877) 998-3440 or cs@dpsi-usa.com Record and Display at 60/270 FPS MPEG4 Compression Remote Viewing through IE Browser Recording modes: Schedule, alarm, motion detection and manual -- Backup through USB 2.0 Por

Transcend 320GB StoreJet Mobile 2.5" External USBHard Drive : OneTouch Auto-Backup button and bundled StoreJet elite software offers intelligent backup scheduling, security, and file compression functions Supports all commonly used operating systems, like Windows? 2000 / XP / Vista, Mac OS? 9.0, or later and Linux? Kernel 2.4.2, or later To protect against data loss or damage from accidental slips or falls, the StoreJet 25 mobile meets the U.S.military drop-test standards MIL-STD-810F with advanced two-stage anti-shock technology, literally making it one of the safest places to keep your data. Hi-Speed USB 2.0 compliant and USB 1.1 ba

The Data Warehouse Lifecycle Toolkit: Expert Methods for Designing, Developing, and Deploying Data Warehouses with CDROM by Ralph Kimball, ISBN 0471255475 : The Data Warehouse Lifecycle Toolkit: Expert Methods for Designing, Developing, and Deploying Data Warehouses [With *]

Liberty Cable Plenum AXlink : LT1779: Ships Via Small Parcel Ground Liberty offers specialized control cables for leading systems such as ELAN, Meridian, B&W Casa, Niles and many more. Liberty works with these companies to provide systems cables specifically designed to meet exact stranding, shielding and capacitance requirements. Maximize the performance and reliability of your system by using cables that the equipment manufacturer recommends. Features: Length: 500 Feet Bare copper stranded conductors Temperature and voltage rating 75 degrees Celsius, 300V Low capacitance rating on data pair -12.5 Pf/FT Sequential footage markings Data pairs shielded for lowest noise UL listed NEC type CL2P/CMP - CSA CMP Foam teflon (data) and low smoke PVC insulation (power) Black flexible low smoke plenum jacket About The Manufacturer Liberty Wire & Cable has the reputation as the premier global supplier for wire and cable products: a reputation forged by consistently delivering quality products and excellent customer service worldwide. Liberty s broad range of products includes interconnects, cable assemblies, coax, security, data ...

APC 450VA Back-UPS ES 120V 8 Out. : Provides early-warning fault analysis on batteries enabling timely preventive maintenance Battery-protected outlets reserve power capacity and run time for connected equipment that require battery back-up Surge-only outlets provide surge-only protection for less critical equipment Cold-start capability provides temporary battery power when the utility power is out. Hot-swappable batteries ensure clean, uninterrupted power to protected equipment while batteries are being replaced Disconnected battery notification warns when a battery is not available to provide backup power. Dataline Surge Protection provides protection of connected equipment from power surges on the data lines. Periodic battery self-test ensures early detection of a battery that needs to be replaced. Audible alarms provide notification of changing utility power and UPS conditions. User-replaceable batteries allow a trained user to perform upgrades and replacements of the batteries Manage the UPS via a USB port (not available on all models). Transformer-block spaced outlets protect equipment with input transformer blocks with...

Liberty Cable Plenum AXlink : LT1779: Ships Via Small Parcel Ground Liberty offers specialized control cables for leading systems such as ELAN, Meridian, B&W Casa, Niles and many more. Liberty works with these companies to provide systems cables specifically designed to meet exact stranding, shielding and capacitance requirements. Maximize the performance and reliability of your system by using cables that the equipment manufacturer recommends. Features: Length: 500 Feet Bare copper stranded conductors Temperature and voltage rating 75 degrees Celsius, 300V Low capacitance rating on data pair -12.5 Pf/FT Sequential footage markings Data pairs shielded for lowest noise UL listed NEC type CL2P/CMP - CSA CMP Foam teflon (data) and low smoke PVC insulation (power) Black flexible low smoke plenum jacket About The Manufacturer Liberty Wire & Cable has the reputation as the premier global supplier for wire and cable products: a reputation forged by consistently delivering quality products and excellent customer service worldwide. Liberty s broad range of products includes interconnects, cable assemblies, coax, security, data ...

Garmin Forerunner 305 GPS Personal Training Unit With Heart Rate Monitor, 010-00467-00 : Garmin Forerunner 305 GPS Personal Training Unit With Heart Rate Monitor: Continuously monitors your heart rate, speed, distance, pace and calories burned so you can train smarter and more effectively Tracks your every move with a super-sensitive GPS that even works on tree-covered trails and near tall buildings Receive a detailed post-workout analysis on the PC with included Training Center software New Features: "Courses" feature lets you download recorded courses and compete against previous workouts Sleek, stylish, lightweight design that "wraps" the GPS antenna around part of the wrist for a better view of the sky, improving reception during training High-sensitivity GPS receiver provides faster acquisition times and improves tracking under trees and near tall buildings Robust wireless heart rate monitor with softer, more comfortable chest strap eliminates cross-talk with other devices and helps you train in your zone Customizable screens let you view up to 12 data fields on three data screens for immediate feedback on the information you need most when training Multi-sport capability l...

Actiontec MegaPlug 85Mbps Ethernet Adapter : An alternative to stringing unsightly Ethernet cables all over your house Transfers data at up to 85 Mbps Every available electrical outlet is a potential network connection Use these adapters to link your computers together, install a networked printer, or connect another device, such as a scanner or networkable hard drive Works with all popular gaming consoles, so playing networked games is a breeze Integrated QoS (Quality of Service) is also included, ensuring smooth data transfers Compatible with any router or gateway STANDARDs - IEEE 802.3, HomePlug Turbo Powerline Specification 1.0.1 PROTOCOLS - Forward Error Correction (FEC), Automatic Channel Adaptation DATA RATE - Up to 85 Mbps over standard home power lines RANGE - Up to 300 meters in wall power lines; capable of passing through circuit breakers SECURITY - 56-bit DES Data Encryption FREQUENCY - 4.3 MHz ~ 20.9 MHz MODULATION - OFDM Symbol Modulation, DQPSK, DBPSK, ROBO Carrier Modulation, QoS - Integrated, Prioritized Random Access, Contention-Free Access, Segment Bursting INDICATORs - LEDs for Power, Link APPROVALs - FCC Part 15 Cl...

APC 1500VA Battery Backup with LCD : Predictive failure notification maximizes system availability by providing early warning of required fan or filter replacement. LCD display shows system parameters and alarms. Replace Battery LED informs the end-user that the battery needs to be replaced. Battery-protected outlets reserve power capacity and run time for connected equipment that require battery back-up Surge-only outlets provide surge-only protection for less critical equipment Cold-start capability provides temporary battery power when the utility power is out. Serial Connectivity allows you to manage the S20 through its serial port. Resettable circuit breakers enable a quick recovery from overload events. Hot-swappable batteries ensure clean, uninterrupted power to protected equipment while batteries are being replaced Dataline Surge Protection provides protection of connected equipment from power surges on the data lines. Boost Automatic Voltage Regulation (AVR) preserves battery life and maximizes runtime. Periodic battery self-test ensures early detection of a battery that needs to be replaced. Adjustable voltage-transfe...
















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