From Handbook of Image and Video Processing
- Chapter 5.1: Lossless Coding
- Chapter 5.2: Block Truncation Coding (BTC)
- Chapter 5.3: Fundamentals of Vector Quantization
- Chapter 5.4: Wavelet Image Compression
- Chapter 5.5: Lossy Image Compression JPEG and JPEG2000 Standards
- Chapter 5.6: The JPEG Lossless Image Compression Standards
- Chapter 5.7: Multispectral Image Coding
- Chapter 5.8: Recovery Methods for Postprocessing of Compressed Images
Arizona State University
The goal of lossless image compression is to represent an image signal with the smallest possible number of bits without loss of any information, thereby speeding up transmission and minimizing storage requirements. The number of bits representing the signal is typically expressed as an average bit-rate (average number of bits per sample for still images, and average number of bits per second for video). The goal of lossy compression is to achieve the best possible fidelity given an available communication or storage bit-rate capacity, or to minimize the number of bits representing the image signal subject to some allowable loss of information. In this way, a much greater reduction in bit-rate can be attained as compared to lossless compression, which is necessary for enabling many real-time applications involving the handling and transmission of audiovisual information. The function of compression is often referred to as coding, for short.
Coding techniques are crucial for the effective transmission or storage of data-intensive visual information. In fact, a single uncompressed color image or video frame with a medium resolution of 500 500 pixels would require 100 seconds for transmission...
Products & Services
Topics of Interest
Chapters List Chapter 6.1: Basic Concepts and Techniques of Video Coding and the H.261 Standard Chapter 6.2: Interframe Subband/Wavelet Scalable Video Coding Chapter 6.3: Digital Video...
5.2 Compression Techniques for Digital Video Coding As with image coding, the objectives of video coding are bitrate reduction in storage and transmission by the use of both statistical and...
Overview Image compression is the application of data compression techniques to two-dimensional digital images I( x, y), to reduce the redundancy of the image data for storage or transmission in an...
Paul Davies Broadcast Systems Manager Dolby Laboratories, Inc. Non-linear Audio Systems are those systems which encode audio to reduce the data rate, allowing the signal to pass through a network...
Chapter List Chapter 38: JPEG and Motion-JPEG (M-JPEG) Compression Chapter 39: DV Compression Chapter 40: MPEG-2 Video Compression This chapter describes JPEG, a standard for lossy...