Topic
Lossless JPEG
About: Lossless JPEG is a research topic. Over the lifetime, 2415 publications have been published within this topic receiving 51110 citations. The topic is also known as: Lossless JPEG & .jls.
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16 May 2005
TL;DR: In this article, the authors present a robust rate control algorithm for JPEG compression, mainly used in digital cameras, based on the statistical properties of JPEG compressed images, the relationship between the coding bit rate and the percentage of zeros among the quantized transform coefficients.
Abstract: The work presents a robust rate control algorithm for JPEG compression, mainly used in digital cameras. The overall control is based on the statistical properties of JPEG compressed images, the relationship between the coding bit rate and the percentage of zeros among the quantized transform coefficients. It allows a good trade off between resources and precision to be obtained.
2 citations
01 Oct 2001
TL;DR: A new and robust watermarking method in the frequency domain that improves over the existing ones and is robust to JPEG compression, very configurable, simple, efficient and very easy to implement.
Abstract: This article presents a new and robust watermarking method in the frequency domain that improves over the existing ones. It is robust to JPEG compression, very configurable, simple, efficient and very easy to implement. Apart from JPEG test, it shows very good results in all tests applied.
2 citations
2 citations
01 Jan 2003
TL;DR: The JPEG-LS algorithm is described and it includes an overview and descriptions of the context-based modeling, extension to multicomponent images, error correction and quantization, and entropy coding.
Abstract: This chapter explains about JPEG-LS lossless and near lossless image compression. The original JPEG lossless compression component contained eight options for differentially encoding images. The Context Adaptive Lossless Image Compression (CALIC) algorithm was developed in response to a call for proposals for a replacement lossless image compression standard in 1994. The JPEG-LS standard is derived from a Hewlett-Packard scheme called LOCO-I that is much simpler than CALIC, but which incorporates some of the key features of CALIC: context-based adaptive prediction with context-dependent adaptive bias removal. In this chapter, the JPEG-LS algorithm is described and it includes an overview and descriptions of the context-based modeling, extension to multicomponent images, error correction and quantization, and entropy coding. This section also discusses the various blocks of the JPEG-LS encoding algorithm. The final section presents some example results using the JPEG-LS coding algorithm in both lossless and near lossless modes.
2 citations