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Description: 利用小波分解与重构,实现图像增强和融合,可灵活选用其他小波,简单易懂,特别适合小波初学者.-using wavelet decomposition and reconstruction, image enhancement and integration, the flexibility to choose other wavelet is simple to understand and Wavelet particularly suitable for beginners.
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Author: whq |
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Description: 这是一个基于提升小波的图像压缩MATLAB程序，希望对大家有帮助-This is a lifting wavelet-based image compression MATLAB program, and they hope to have everyone help
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Author: andandan |
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Description: 利用小波提升算法和huffman编码进行图像的无算压缩，压缩比约50％，vc6编译-Using Wavelet Lifting Scheme and huffman coding image without operator compression, the compression ratio of about 50, vc6 compiler
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Author: vic |
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Description: 由于小波变换转换过程中出现浮点数,使得256*256的图像压缩后不能为128*128.采用小波提升算法可以解决这个问题,由于小波提升算法可以实现整数到整数的变换,且可以完全重构信号.并且采用提升算法可以提高算法执行的速度.-Wavelet transform as a result of the conversion process appear in floating-point numbers, making the image 256* 256 can not be compressed to 128* 128. Wavelet lifting scheme can solve this problem, as the wavelet lifting scheme can realize integer to integer transform, and can be completely remodeling signal. and using lifting scheme algorithm can improve the speed of implementation.
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Author: desertwing |
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Description: 用matlab编写的提升小波算法，应用于图像处理，很好用-Matlab prepared using lifting wavelet algorithm used in image processing, very good use
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Author: xiaodaoer |
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Description: 第二代小波变换，基于提升格式的整数小波实现数字图像的无损压缩编码-Second-generation wavelet transform, lifting scheme based on integer wavelet realize the lossless compression of digital image coding
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Author: angy |
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Description: 针对小波变换和多级树集合分裂图像编码具有浮点数运算、算法复杂等特点,采用整数实现的提升格式代替了原来的小
波变换,并结合提升小波变换和DCT变换的特点,提出了一种改进方案。-For wavelet transform and multi-level set to split the tree image coding with floating-point computation, algorithmic complexity, etc., realize the upgrading of the use of integer format instead of the original wavelet transform, combined with lifting wavelet transform and DCT transform, an improved program.
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Author: jingjing |
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Description: 利用提升方案实现db9/7和db5/3小波滤波器，并用该小波进行图像的分解
-Use lifting scheme to achieve db9/7 and db5/3 wavelet filter, and the wavelet decomposition of image
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Author: 许全盛 |
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Description: 本文通过比较第一代和第二代小波算法特点,引入二代小波提升结构的概念,提出了一种基于二代小波提升结构的快速图像边缘检测算法 对三次B样条小波基实现提升格式,通过计算大尺度下分解子图的模值和幅角来确定边缘 经过实验比较,能比经典的边缘检测算法得出更精确的边缘图像,同时通过与基于第一代小波算法的边缘检测比较,基于二代小波提升格式的边缘检测算法计算更快速,更高效。-In this paper, by comparing first-and second-generation wavelet algorithm features, the introduction of second generation wavelet to enhance the concept of structure, a second generation wavelet-based structure to enhance the rapid image edge detection algorithm on the three B-spline wavelet lifting scheme to achieve through Calculation of large-scale mold subgraph decomposition value and increase the edge angle to determine the experimental comparison, than the classical edge detection algorithm to draw a more accurate edge image, at the same time with the first generation of wavelet-based edge detection algorithm comparison, based on the Second generation wavelet lifting scheme edge detection algorithm is faster and more efficient.
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Author: 赵丽娜 |
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Description: 探讨了一种新的基于提升小波变换的图像融合算法，提升小波的构造不依赖于傅立叶变
换，应用它进行图像融合可以提高处理速度，节约内存空间。-To explore a new lifting wavelet transform based image fusion algorithm, the structure of lifting wavelet is not dependent on the Fourier transform, applied it to image fusion can improve processing speed and save memory space.
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Author: lieutenant |
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Description: 这是一篇基于Hash函数敏感性的医学图像精确认证.本文提出了一种基于提升格式的整数小波变换和Hash函数敏感性相结合的易碎水印方法-This is a Hash Function Based on the sensitivity of the medical image accurate authentication. In this paper, a lifting scheme based on integer wavelet transform and Hash function that combines the sensitivity of fragile watermarking method
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Author: hj |
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Description: A collection of functions is presented which includes 2nd generation wavelet decomposition and reconstruction tools for images as well as functions for the computation of moment invariants. The wavelet schemes rely on the lifting scheme of Sweldens. Rectangular grids are split into quincunx grids, also known as red-black ordering. The prediction filters include Neville filters as well as a few nonlinear ones fairly capable of preserving local maxima or minima. The decomposition and reconstruction functions are called in the style of the Matlab Wavelet Toolbox. Many small and a few elaborate examples have been included, ranging from the
computation of moment invariants to
multiresolution image fusion. Please
see Contents.m for an exhaustive list.
-A collection of functions is presented which includes 2nd generation wavelet decomposition and reconstruction tools for images as well as functions for the computation of moment invariants. The wavelet schemes rely on the lifting scheme of Sweldens. Rectangular grids are split into quincunx grids, also known as red-black ordering. The prediction filters include Neville filters as well as a few nonlinear ones fairly capable of preserving local maxima or minima. The decomposition and reconstruction functions are called in the style of the Matlab Wavelet Toolbox. Many small and a few elaborate examples have been included, ranging from the computation of moment invariants to multiresolution image fusion. Please see Contents.m for an exhaustive list.
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Author: yuan |
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Description: 小波变换的MATLAB源代码实现。主要是用作图像融合的。-Wavelet Transform MATLAB source code to achieve. Is used mainly for image fusion.
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Author: simon liu |
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Description: 这是《小波分析理论与MATLABR2007实现》的源代码。主要是基于Matlab的小波工具箱实现小波基选择、小波包分解、Mallat变换以及小波变换在边缘提取、图像去噪、数据压缩等中的应用，特别包含了二代提升小波的相关内容，理论与实际相结合。大家想要了解的二进小波、正交镜像滤波器组[QMF]等概念这里都有体现。-This is 《MATLABR2007 wavelet analysis theory and implementation》 of the source code. Mainly based on the Matlab wavelet toolbox implementation of wavelet selection, wavelet packet decomposition, Mallat transform and wavelet transform in edge detection, image denoising, data compression, such as the application, in particular, contains a second generation of relevant content Lifting Wavelet theory and reality. Everyone wanted to know about the dyadic wavelet, quadrature mirror filters [QMF] concepts are embodied here.
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Author: 吴 |
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Description: waili小波算法包，在windows下编译通过的lib-Uses integer wavelet transforms based on the lifting Scheme
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Provides various wavelet transforms of the Cohen-Daubechies-Feauveau family of biorthogonal
wavelets
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Provides crop and merge operations on wavelet-transformed images
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Provides noise reduction based on wavelet thresholding using Generalized Cross Validation
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Provides scaling of images
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Provides edge enhancement of images
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Provides also some simple image operations(addition and subtraction of images)
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Allows different image representations(RGB,YUV,Lab,...)
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Author: jiaozi |
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Description: ：根据航空图像压缩系统的特点和要求，选择提升小波+SPIHT算法作为系统的实现方案。
为了提高算法的执行效率，对提升小波中的边界处理问题进行了合理简化，同时对SPIHT算法的实现
进行了改进。根据系统的实时性要求，选择TI公司的TMS320C6416 DSP芯片作为系统的实现内核，并
采用优化设计对关键代码进行优化，最后给出了系统的硬件实现框图。s-: According to the Aviation image compression system characteristics and requirements, choose the lifting wavelet+ SPIHT algorithm as a system implementations.
In order to improve the implementation of the algorithm efficiency, improve the boundary treatment wavelet conducted a reasonable and simplified, while SPIHT Algorithm
Has been improved. According to the system s real-time requirements, choose the TI s TMS320C6416 DSP chip as a system implementation of the kernel, and
Using optimal design of key code optimization Finally, the system block diagram of hardware implementation.
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Author: lx |
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Description: image compression using the lifting
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Author: KIKI |
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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
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Author: zephilix |
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Description: NONLINEAR WAVELET TRANSFORMS
FOR IMAGE CODING VIA LIFTING
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Author: violette |
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Description: 该程序实例首先对二维图像进行提升小波分解，然后构造传统小波分解结构[c,s]，接着使用函数ddencmp()获取信号压缩阈值，再采用函数wdencmp()实现图像压缩-First,the program decomposes the image use lifting wavelet , and then construct the traditional wavelet decomposition structure [c, s], then use the function ddencmp ()to obtain signal compression threshold, and then use the function wdencmp () to achieve image compression
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Author: 岳明彦 |
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