Journal ArticleDOI
The JPEG still picture compression standard
TLDR
The Baseline method has been by far the most widely implemented JPEG method to date, and is sufficient in its own right for a large number of applications.Abstract:
For the past few years, a joint ISO/CCITT committee known as JPEG (Joint Photographic Experts Group) has been working to establish the first international compression standard for continuous-tone still images, both grayscale and color. JPEG’s proposed standard aims to be generic, to support a wide variety of applications for continuous-tone images. To meet the differing needs of many applications, the JPEG standard includes two basic compression methods, each with various modes of operation. A DCT-based method is specified for “lossy’’ compression, and a predictive method for “lossless’’ compression. JPEG features a simple lossy technique known as the Baseline method, a subset of the other DCT-based modes of operation. The Baseline method has been by far the most widely implemented JPEG method to date, and is sufficient in its own right for a large number of applications. This article provides an overview of the JPEG standard, and focuses in detail on the Baseline method.read more
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References
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Proceedings ArticleDOI
Overview of the JPEG (ISO/CCITT) still image compression standard
TL;DR: The Joint Photographic Experts Group (JPHEG) as discussed by the authors is an ISO/CCITT working group in the process of developing an international standard for general-purpose, continous-tone, still-image cornpression.
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