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: 有两个vc工程文件，分别是lzc编码和解码。算法主要可以对灰度图像进行压缩和解压缩，效果比jpeg要好。其实这就是jpeg2000的原型。-two vc engineering documents were lzc encoding and decoding. This algorithm can be gray image compression, the effect is better than jpeg. This is actually the prototype JPEG2000. Platform: |
Size: 37888 |
Author:骆平 |
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Description: 用VC写的一个小波正反变换.新一代静止图像压缩标准JPEG2000将离散小波变换(DWT)作为其核心变换技术.-VC write a wavelet transform pros. A new generation of geostationary JPEG2000 image compression standard of discrete wavelet transform (DWT) as its core technology transformation. Platform: |
Size: 79872 |
Author:阿良 |
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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: matlabBank-Based Kalman Filtering Technique for] - A Filter-Bank-Based Kalman Filtering Technique for Wavelet Estimation and Decomposition of Random Signals.pdf
[DIP_dg.rar] - JPEG图像压缩像素之扫描方法之一（zigzag scan）这是用的循环法
[imagethreshold.zip] - 老外编写的阈值分割代码,非常的好,强烈推荐下载
[contour.rar] - 利用OpenCV进行轮廓提取，很好用！对于初学openCv的人来说是个很好的入门例程
[lu.rar] - 路径识别 -matlabBank-Based Kalman Filtering Technique for]- A Filter-Bank-Based Kalman Filtering Technique for Wavelet Estimation and Decomposition of Random Signals.pdf [DIP_dg.rar]- JPEG image compression, one pixel of the scanning method (zigzag scan) This is used Cyclic Law [imagethreshold.zip]- foreigners prepared threshold segmentation code, very good, strongly recommend to download [contour.rar]- use OpenCV for contour extraction, very good use! OpenCv for the beginner who is a good entry-routines [lu.rar]- Path Recognition Platform: |
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Author: |
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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: |
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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: |
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Author:zhenzhen |
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Description: 各种数字图像处理的算法及编程实现源码。主要内容包括：位图基础、图像的显示、图像的几何变换、图像灰度变换、图像的平滑处理、图像锐化处理及边缘检测、图像分割及测量、图像的形态处理学、图像的变换域处理及应用、图像的合成、24位彩色图像的处理、图像的小波变换和JPEG图像的压缩编码。-A variety of digital image processing algorithms and programming source code. The main contents include: basis bitmap, image display, image geometric transformation, image transformation, image smoothing, image sharpening and edge detection, image segmentation and measurement, image handle the form of science, image transform domain treatment and application, image synthesis, 24-bit color image processing, image of the wavelet transform and JPEG image compression coding. Platform: |
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Author:邓玥琳 |
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Description: 该程序主要实现图像的无损压缩，具体算法包括：
（1）整数小波变换＋SPIHT无损压缩
其中整数小波可以采用JPEG2000提供的5－3小波，也可以采用S＋P变换，本程序均已给出。
（2）DPCM＋算术编码
DPCM采用的是JPEG中采用的方法；
（3）JPEG－LS标准
JPEG－LS的无损压缩性能非常好，超过JPEG2000。-The program mainly realize lossless image compression, the specific algorithm include: (1) integer wavelet transform SPIHT Integer Wavelet lossless compression which can be used to provide the 5-3 wavelet JPEG2000, can also adopt the S P transform, the procedures are given. (2) DPCM arithmetic coding DPCM is used in JPEG methodology (3) JPEG-LS standard JPEG-LS lossless compression of very good performance, more than JPEG2000. Platform: |
Size: 103424 |
Author:yang |
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Description: 这个是二维小波变化的正反变化，采用9/7提升小波系数，在jpeg2000图像压缩系统中使用-This is a change in the pros and cons of two-dimensional wavelet changes, the use of 9/7 lifting wavelet coefficients in JPEG2000 image compression system used in Platform: |
Size: 2048 |
Author:钟毓秀 |
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Description: JPEG2000标准 图形压缩算法与集成电路架构-This book consists of 10 chapters.
The first two chapters provide an
overview of the principles and theory of data and image compression with numerous examples. In Chapter 3, we review the current JPEG still standard for image compression, discuss the advantages and disadvantages of current JPEG, and the need for the new JPEG2000 standard for still image com-
pression. We discuss the principles of discrete wavelet transformation and its implementation using both the convolution approach and the lifting approach in Chapter 4. In this chapter, we discuss the theory of multiresolution analysis and also the principles of lifting factorization for efficient implementation of discrete wavelet transform. In Chapter 5, we discuss VLSI algorithms
and architectures for implementation of discrete wavelet transform and review different architectures for lifting-based implementation. In Chapters 6 to 8, we concentra Platform: |
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Author:zephilix |
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Description: 图形图像处理中图像压缩的一些MATLAB代码，包括小波，jpeg等。-Graphic image compression image processing some MATLAB code, including wavelet, jpeg and so on. Platform: |
Size: 97280 |
Author:lite |
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Description: Digital Watermarking Using Discrete Wavelet Transform (DWT) & Singular Value Decomposition (SVD) & Checking its Robustness in the presence of JPEG Image Compression Platform: |
Size: 4096 |
Author:manjuatha vg |
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