Description: 一个提升小波变换的matlab工具包。可以实现97，53，haar等系列的提升小波分解与重构。-an upgrade wavelet transform Matlab tool kit. 97,53 can be achieved, haar series of lifting wavelet decomposition and reconstruction. Platform: |
Size: 58958 |
Author:周瑞 |
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Description: 本人原创代码，实现了图像的97小波，Haar小波变换，并实现了基于小波系数选择的图像融合处理，程序简单易懂，界面简洁，希望朋友们能够喜欢。-my original code, the images of 97 Wavelet, Haar transform, and achieve a choice based on wavelet coefficients of image fusion, procedures are simple, concise interface, hope to be able to like a friend. Platform: |
Size: 2762752 |
Author:Lqh |
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Description: This program compress and recostruct using wavelets. We can select level of decomposition(here maximum 4 levels are given) of images using selected wavelet.
For eg:-wavelets can be haar, db1, db2,dmey...............
Decomposition can be viewed in figure.
(Please note that select 256X256 image for better result.)
Then compression can performed,
PERFL2 give compression score.
Then reconstruction can be performed.
Each decompsition we can choose different threshold values.
For each threshold value we can calculate mse,psnr,pq(picture quality),
bit ratio etc. To get pq install pqs function . -This program compress and recostruct using wavelets. We can select level of decomposition (here maximum 4 levels are given) of images using selected wavelet.For eg:-wavelets can be haar, db1, db2, dmey ........ ....... Decomposition can be viewed in figure. (Please note that select 256X256 image for better result.) Then compression can performed, PERFL2 give compression score.Then reconstruction can be performed.Each decompsition we can choose different threshold values . For each threshold value we can calculate mse, psnr, pq (picture quality), bit ratio etc. To get pq install pqs function. Platform: |
Size: 3072 |
Author:陈语恬 |
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Description: ezw编码，外加haar基变换，简单明了，适合初学者-EZW coding, plus the base haar transform, simple and clear, suitable for beginners Platform: |
Size: 154624 |
Author:wangyun |
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Description: 实现连续小波变换。本程序使用Haar小波为母函数，要求输入为一维文本信号，输出为小波变换系数，呵呵，比较适合小波课程的入门哦-The realization of continuous wavelet transform. This procedure using the Haar wavelet function for the mother, asked to enter text for the one-dimensional signal, the output for the wavelet transform coefficients, huh, huh, more suitable for entry-Oh wavelet courses Platform: |
Size: 10240 |
Author:zhang |
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Description: 稀疏重建与压缩感知源代码，对一幅图像lena进行M尺度的Haar小波变换-Sparse Reconstruction and compressive sensing source code, to be an image lena M scale Haar wavelet transform Platform: |
Size: 216064 |
Author:叶圣超 |
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Description: 对2维图像进行小波变换，滤除图像中的噪声，提取轮廓信息。-Wavelet transform is carried out for 2 dimensional image, and the noise of the image is filtered, and the contour information is extracted.. Platform: |
Size: 2048 |
Author:LZ |
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Description: 提出了一种多迸制频移键控(M娲K)信号调制分类及解调方法，选取截获接收机输出的MFSK信
号的时频脊线作为分类特征，利用无监督聚类算法求取最佳聚类数M．利用时频脊线的Ham：小波变换
估计码元宽度，并且利用对应最佳聚类数的聚类中心确定抽判门限，通过对时频脊线抽样判决，实现了
MFSK信号的解调．理论分析和对实际信号的处理结果证明了此算法的可行性．-new algorithm is proposed for elassillcation and demodulation of MFSK signals．The ridge of time—
frequency representation of MFSK signals is analyzed．Modulation elassi_fieation is realized by using the unsupervised
clustering algorithm to determine the optimal nulnllt2r of clusters．In order to demodulate MFSK signals，the Haar
wavelet transform is used to estimate the code—width and the centers of optimal clusters are used to determine
thresholds．Theoretical analysis and practical signal processing results justify the robusticity and the efficiency of the
new classification and demodulation Mgorithm． Platform: |
Size: 219136 |
Author:张洋 |
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Description: The Haar transform is the simplest of the wavelet transforms. This transform cross-multiplies a function against the Haar wavelet with various shifts and stretches, like the Fourier transform cross-multiplies a function against a sine wave with two phases and many stretches Platform: |
Size: 2048 |
Author:rajendra p |
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Description: 关于小波变换的练习程序，小波变换步骤：
1.把小波w(t)和原函数f(t)的开始部分进行比较，计算系数C。系数C表示该部分函数与小波的相似程度。
2.把小波向右移k单位，得到小波w(t-k)，重复1。重复该部知道函数f结束.
3.扩展小波w(t)，得到小波w(t/2)，重复步骤1,2.
4.不断扩展小波，重复1,2,3.
这里使用的haar小波，缩放函数是[1 1]，小波函数是[1 -1]。-Exercise programs on wavelet transform, wavelet transform steps: 1. wavelet w (t), and the original function f (t) of the beginning of comparison, calculation of the coefficient C. Coefficient C indicates the degree of similarity that part of the function and wavelets. 2. Wavelet k units to the right, to give the wavelet w (tk), repeat 1. Repeat this section to know the end of the function f. 3. Extend the wavelet w (t), to obtain the wavelet w (t/2), repeat steps 1, 2, 4. expanding wavelet, repeat 1,2,3. As used herein, haar wavelet , zoom function is [11], the wavelet function is [1-1]. Platform: |
Size: 64512 |
Author:tianye |
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Description: ASK信号的连续小波变换,并提取信号的幅度信息-ASK signal of the continuous wavelet transform and extracts the signal amplitude information Platform: |
Size: 2048 |
Author:likun |
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Description: 随着计算机科技的发展，图像检索的应用也越来越成熟，根据检索性质可分为两类：基于文本的图像检索和基于内容的图像检索。本论文通过研究基于内容的图像检索中的几个核心算法，用于聚类分析的K-means算法，通过haar小波变换来提取图像底层视觉特征，以及使用F-范数理论来进行相似性度量，来设计一个离线的图像检索系统。(With the development of computer technology, the application of image retrieval is more and more mature. According to the nature of retrieval, they can be divided into two categories: text based image retrieval and content based image retrieval. This paper studies the core algorithm in content based image retrieval, K-means algorithm for clustering analysis, through Haar wavelet transform to extract image visual features, and using F- norm theory to similarity measure, image retrieval system to design an offline.) Platform: |
Size: 3736576 |
Author:笨笨熊笨笨
|
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Description: 完成对bmp图像的傅立叶变换;
完成对bmp图像的Haar小波分解与重构(Fourier transform of the BMP image is completed.
Haar wavelet decomposition and reconstruction of BMP images) Platform: |
Size: 272384 |
Author:别来无恙- |
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Description: 实现了二维离散傅里叶变换和haar小波变换，附了一些冈萨雷斯教材的图片，做了一个GUI，一些参数可调。对图像处理的初学者应该有所帮助。(The two-dimensional discrete Fourier transform and Haar wavelet transform are realized, and some pictures of Gonzales textbook are attached, and a GUI is made, and some parameters are adjustable. It should be helpful for the beginner of image processing.) Platform: |
Size: 1989632 |
Author:风小麟 |
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