Understanding Compression

If you want to attract and retain users in the booming mobile services market, you need a quick-loading app that won’t churn through their data plans. The key is to compress multimedia and other data into smaller files, but finding the right method is tricky. This witty book helps you understand how data compression algorithms work—in theory and practice—so you can choose the best solution among all the available compression tools. With tables, diagrams, games, and as little math as possible, authors Colt McAnlis and Aleks Haecky neatly explain the fundamentals. Learn how compressed files are better, cheaper, and faster to distribute and consume, and how they’ll give you a competitive edge. Learn why compression has become crucial as data production continues to skyrocket Know your data, circumstances, and algorithm options when choosing compression tools Explore variable-length codes, statistical compression, arithmetic numerical coding, dictionary encodings, and context modeling Examine tradeoffs between file size and quality when choosing image compressors Learn ways to compress client- and server-generated data objects Meet the inventors and visionaries who created data compression algorithms

This book evaluates the various evidence-based arguments for the use of compression to treat chronic wounds. It describes the growing health burden caused by these lesions with vast sums spent on wound management and its associated complexities around the world. Since compression is the mainstay of treatment in venous conditions ranging from varicose veins through venous leg ulcers, the authors have also evaluated the use of compression techniques in the successful management of lymphoedema and certain orthopaedic conditions. Compression and Chronic Wound Management provides a balanced text on how to apply scientific knowledge to ensure pragmatic clinical practice. It therefore represents an essential resource for residents, specialists and researchers in wound management, whether they are dermatologist, vascular medicine physicians and surgeons, or orthopaedic practitioners.

Described by Jeff Prosise of PC Magazine as one of my favorite books on applied computer technology, this updated second edition brings you fully up-to-date on the latest developments in the data compression field. It thoroughly covers the various data compression techniques including compression of binary programs, data, sound, and graphics. Each technique is illustrated with a completely functional C program that demonstrates how data compression works and how it can be readily incorporated into your own compression programs. The accompanying disk contains the code files that demonstrate the various techniques of data compression found in the book.

You'll learn not only to choose the optimal compression strategy for your project, but also to apply it in a way that guarantees the best possible results."--BOOK JACKET.

IBM® Real-time CompressionTM software that is embedded in IBM SAN Volume Controller (SVC) and IBM Storwize® V7000 solution addresses all the requirements of primary storage data reduction, including performance, by using a purpose-built technology called . This IBM RedpaperTM publication addresses the key requirements for primary storage data reduction and gives real world examples of savings that can be made by using compression. SVC and Storwize V7000 is designed to improve storage efficiency by compressing data by as much as 80% through supported real-time compression for block storage. This process enables up to five times as much data to be stored in the same physical disk space. Unlike other approaches to compression, IBM Real-time Compression is used with active primary data, such as production databases and email systems. This configuration dramatically expands the range of candidate data that can benefit from compression. As its name implies, IBM Real-time Compression operates as data is written to disk, avoiding the need to store data that is awaiting compression.

CD-ROM contains project files and sample media for three tutorials.

IBM® Real-time CompressionTM is fully integrated in the IBM XIV® Storage System Gen3. Real-time Compression provides the possibility to store 2 - 5 times more data per XIV system, without additional hardware. This technology also expands the storage-replication-related bandwidth, and can significantly decrease the Total Cost of Ownership (TCO). Using compression for replication and for volume migration with IBM Hyper-Scale Mobility is faster and requires less bandwidth for the interlink connections between the XIV storage systems, because the data that is transferred through these links is already compressed. IBM Real-time Compression uses patented IBM Random Access Compression Engine (RACE) technology, achieving field-proven compression ratios and performance with compressible data. This IBM RedpaperTM publication helps administrators understand and implement IBM Real-time Compression on the IBM XIV Gen3 storage system. This edition applies to the IBM XIV Storage Software V11.6.1 with the IBM XIV Storage System Model 314. Model 314 features powerful hardware that enables a new high level for storage performance with compressed data.

This book explores the historical interrelationships between mathematics, medicine and media, and offers a unique perspective on how video compression has shaped our relationship with moving images and the world. It situates compression in a network of technological, visual and epistemic practices spanning from late 18th-century computational methods to the standardization of electrical infrastructure and the development of neurology throughout the 1900s. Bringing into conversation media archaeology, science and technology studies, disability studies and queer theory, each chapter offers an in-depth look at a different trace of compression, such as interlacing, macroblocking or flicker. This is a story of forgotten technologies, unusual media practices, strange images on the margins of visual culture and inventive ways of looking at the world. Readers will find illuminating discussions of the formation of complex scientific and medical systems, and of the violent and pleasurable interactions between our bodies and media infrastructure.