Description: JPEG 标准的最新进展是 1996 年开始制定， 2001 年正式成为国际标准的 JPEG 2000 。与 JPEG 相比， JPEG 2000 作了大幅改进，其中最重要的是用离散小波变换（ DWT ）替代了 JPEG 标准中的离散余弦变换。在文件大小相同的情况下， JPEG 2000 压缩的图像比 JPEG 质量更高，精度损失更小。作为一个新标准， JPEG 2000 暂时还没有得到广泛的应用，不过包括数码相机制造商在内的许多企业都对其应用前景表示乐观， JPEG 2000 在图像压缩领域里大显身手的那一天应该不会特别遥远。 -JPEG standard on the latest progress of the development started in 1996 and in 2001 became the international standard JPEG 2000. Compared with JPEG, JPEG 2000 made substantial improvements, the most important of which is discrete wavelet transform (DWT) instead of the JPEG standard discrete cosine transform. The file size under the same circumstances, JPEG 2000 compressed images of higher quality than JPEG, precision small loss. As a new standard, JPEG 2000 has not yet been widely applied, including digital camera manufacturers in many enterprises have their applications are optimistic about the prospects of the JPEG 2000 image compression areas prone to the day should not particularly remote. Platform: |
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Author:ldwe |
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Description: The JPEG-2000 Still Image Compression Standard 《JPEG-2000静止图像压缩标准》英文-The JPEG-2000 Still Image Compression Standard "JPEG-2000 still image compression standard" English Platform: |
Size: 311149 |
Author:景仁 |
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Description: 新一代静止图像压缩算法JPEG2000的参考代码，采用C＋＋实现，非常易懂，是学习JPEG2000编程应用的好东东。-new generation of geostationary JPEG2000 image compression algorithm reference code using C++, very easy to understand, learn JPEG2000 is a good application programming Wanton. Platform: |
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Author:王青海 |
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Description: The JPEG-2000 Still Image Compression Standard 《JPEG-2000静止图像压缩标准》英文-The JPEG-2000 Still Image Compression Standard "JPEG-2000 still image compression standard" English Platform: |
Size: 311296 |
Author:景仁 |
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Description: 新一代静止图像压缩编码标准JPEG2000概述* 丁贵广 郭宝龙 西安电子科技大学 机电工程学院 西安 710071 guiguangd@263.net 摘要随着多媒体技术应用的不断增加图像压缩技术不仅要求具有较高的压缩性能而且还要求有新的特征来满足一些特殊的要求为此国际标准化组织ISO指定了新一代静止图像压缩标准JPEG2000本文通过对JPEG2000中核心算法EBCOT的详细分析阐述了JPEG2000压缩标准新的特征以及与现有压缩标准相比显示出来的优越性能 关键词JPEG2000小波变换EBCOT彩色图像编码-new generation of static image compression coding standard JPEG2000 outlined* Ding Guang Guo Baolong Xi'an University of Electronic Science and Electrical and Mechanical Engineering College, Xi'an 710071 guiguangd@263.net Abstract multimedia technology with the increasing use of image compression technology not only requires a high compression performance, but also requires new features to meet the special requirements for this ISO designation of a new generation of still image compression standard JPEG2000 Based on the core JPEG2000 algorithm EBCOT the detailed analysis described JPEG2000 compression standard and the new features with the existing compression standard compared to demonstrate the superiority can Keywords JPEG2000 wavelet transform EBCOT Color Image Coding Platform: |
Size: 257024 |
Author:景仁 |
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Description: JPEG 标准的最新进展是 1996 年开始制定， 2001 年正式成为国际标准的 JPEG 2000 。与 JPEG 相比， JPEG 2000 作了大幅改进，其中最重要的是用离散小波变换（ DWT ）替代了 JPEG 标准中的离散余弦变换。在文件大小相同的情况下， JPEG 2000 压缩的图像比 JPEG 质量更高，精度损失更小。作为一个新标准， JPEG 2000 暂时还没有得到广泛的应用，不过包括数码相机制造商在内的许多企业都对其应用前景表示乐观， JPEG 2000 在图像压缩领域里大显身手的那一天应该不会特别遥远。 -JPEG standard on the latest progress of the development started in 1996 and in 2001 became the international standard JPEG 2000. Compared with JPEG, JPEG 2000 made substantial improvements, the most important of which is discrete wavelet transform (DWT) instead of the JPEG standard discrete cosine transform. The file size under the same circumstances, JPEG 2000 compressed images of higher quality than JPEG, precision small loss. As a new standard, JPEG 2000 has not yet been widely applied, including digital camera manufacturers in many enterprises have their applications are optimistic about the prospects of the JPEG 2000 image compression areas prone to the day should not particularly remote. Platform: |
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Author:ldwe |
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Description: DIGITAL IMAGERY is pervasive in our world today. Consequently,
standards for the efficient representation and
interchange of digital images are essential. To date, some of
the most successful still image compression standards have resulted
from the ongoing work of the Joint Photographic Experts
Group (JPEG). This group operates under the auspices of Joint
Technical Committee 1, Subcommittee 29, Working Group 1
(JTC 1/SC 29/WG 1), a collaborative effort between the International
Organization for Standardization (ISO) and International
Telecommunication Union Standardization Sector (ITUT).
Both the JPEG [1–3] and JPEG-LS [4–6] standards were
born from the work of the JPEG committee. For the last few
years, the JPEG committee has been working towards the establishment
of a new standard known as JPEG 2000 (i.e., ISO/IEC
15444). The fruits of these labors are now coming to bear, as
JPEG-2000 Part 1 (i.e., ISO/IEC 15444-1 [7]) has recently been
approved as a new international standard.-DIGITAL IMAGERY is pervasive in our world t oday. Consequently, standards for the efficient representation an d interchange of digital images are essential. To date, some of the most successful still image compres sion standards have resulted from the ongoing w contex of the Joint Photographic Experts Group (JP EG). This group operates under the auspices of J oint Technical Committee 1 Subcommittee 29. Working Group 1 (JTC 1/SC 29/WG 1) a collaborative effort between the Internatio 44 Organization for Standardization (ISO) an d Stan International Telecommunication Union dardization Sector (ITUT). Both the JPEG [1-3] and JPEG-LS [4-6] standards were born from the w contex of the JPEG committee. For the last few years , the JPEG committee has been working towards th e establishment of a new Platform: |
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Author:slam |
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Description: 本作品是基于Windows平台使用Visual C++工具开发的多文档应用程序。本课题组成员在对DICOM3.0医学影像存储与传输的国际标准和JPEG 2000静态图像压缩标准学习的基础上，实现了基于JPEG 2000标准的医学图像高效压缩功能，压缩比可在1～300间可调；同时该软件兼容JPEG压缩，压缩比可在1～100间可调。该软件操作简单、界面友好，是PACS系统的一个重要组成部分，对于缓解传输带宽和存储容量的压力具有一定意义。-of the book is based on the Windows platform using Visual C development tool for the multi-document applications. The members of the task group on DICOM3.0 medical imaging storage and transmission of international standards and JPEG 2000 Static state image compression standard on the basis of studies, Based on the realization of the JPEG 2000 standard medical image compression function efficiently, compression ratio can be an adjustable-300; The software also compatible JPEG compression, compression ratio in a ~ 100 adjustable. The software is simple, friendly interface and PACS system is an important component of the For ease transmission bandwidth and storage capacity of the pressure with a certain sense. Platform: |
Size: 920576 |
Author:袁耀辉 |
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Description: 介绍了有关静态图像压缩标准的核心算法,基于图像的小波变换对小波系数进行量化和用EBCOT算法进行压缩编码-Introduced the still image compression standard of the core algorithms, image-based wavelet transform of the wavelet coefficients used to quantify and EBCOT coding algorithm Platform: |
Size: 77824 |
Author:何文婷 |
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Description: JPEG 2000正式名称为ISO 15444，是一种基于离散小波变换的新型图像压缩方法，与基于离散余弦变换的JPEG压缩方法相比较，具有多分辨率表达、更好的去相关能力、高压缩比、按视觉模型量化等优点，并同时提供无损和有损压缩算法-JPEG 2000 is formally known as ISO 15444, is a discrete wavelet transform based on a new type of image compression methods, and based on the discrete cosine transform JPEG compression method, compared with the expression of multi-resolution, better related to ability, high compression ratio, by the visual model to quantify the advantages, as well as providing lossless and lossy compression algorithms Platform: |
Size: 762880 |
Author:zhenzhen |
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