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二维小波变换
- 关于二维小波变换的程序 [精华] 说明:此算法重在概念,速度并不是很快。因为FOR循环的缘故。此程序从循环矩阵的观点出发,把圆周卷积和快速幅里叶变换建立了联系。实现了分解和无失真重构。它只做了一层分解,即将256x256图形分解成为64x64的四个图形,避免了使用WKEEP()的困惑。主要思想为用小波滤波器族构造正交阵W,变换写为B=W*A*W ,反变换为:A=W *A*W,这与所有正交变换无异。W为循环正交矩阵,因此可用FFT实现快速运算,难点就在重构矩阵上。若用矩阵概念明确,一个
wavelet_signal
- 采用mallat算法进行小波分解/重构的程序,支持一维和二维信号-Mallat algorithm using wavelet decomposition / remodeling process, support one-and two-dimensional signal
5_3_lifting
- 采用5/3小波提升算法编写的一维和二维信号小波分解与重构程序。给出了图象分解的演示示例。-using 5 / 3 wavelet algorithm to enhance the one-and two-dimensional wavelet decomposition and reconstruction process. Given the decomposition of images demonstration examples.
FRIT
- 计算小波变换的Mallat算法需要逐级分解和重构,而本文通过矩阵变换方法,给出不需逐级计算的小波分解和重构矩阵的构造方法,并给出9/7小波的分解和重构矩阵的基向量及波形图。
suanfa
- 给出了一种基于小波变换的图像融合方法,对小波分解后的低频分量通过度量其图像块空间频率和对比度来确定融合图 像的低频分量,对分解后得到的高频分量,选择高频系数时,基于绝对值最大的原则,并对选择结果进行一致性验证,最后重构得 到融合图像。从仿真结果可以看出,给出的方法很好地保留了多幅原图像的有用信息,融合图像清晰度和对比度都较好,是一种有 效的图像融合算法
wave.rar
- 小波滤波的MALLAT算法,程序编写的很容易懂,能实现bd1-db10的小波分解和重构,比我前一次发的小波算法更简单易懂,Wavelet filtering MALLAT algorithm, programming is very easy to understand, to achieve bd1-db10 wavelet decomposition and reconstruction, than I made the previous wavelet algorithm is more
imagereconstruction
- 基于小波和插值的超分辨率图像重建算法,通过插值后将小波分解应用于图像中,再通过逆变换得到重构图像-And interpolation based on wavelet super-resolution image reconstruction algorithm by interpolating the image after the wavelet decomposition used, then the reconstructed image through the inverse tran
wavelet
- 通过matlab实现二维离散小波变换的Mallat快速算法源程序和对二维图像进行多级分解与重建-Matlab achieved by two-dimensional discrete wavelet transform Mallat fast algorithm and multi-dimensional image decomposition and reconstruction
wavelet
- VC++编写的小波变换源码,可以实现小波分解与重构算法-VC++ Prepared wavelet transform source code, you can achieve the wavelet decomposition and reconstruction algorithm
63535316jiqishijue
- 视频文字识别在视频分析与检索中有着重要作用,该算法对字幕图像进行N层小波分解,获得该视频文字的低频分量,再借助相似性度量方法实现视频文字的识别。-Video character recognition in the video analysis and retrieval plays an important role in the algorithm of subtitles images N layer wavelet decomposition, which is low-frequenc
wavelet
- 实现小波变换对图像进行压缩。先进行db1小波二层分解,然后由均匀量化算法对其进行量化实现压缩。-The realization of wavelet transform for image compression. First two db1 wavelet decomposition, and then by the uniform quantization algorithm to quantify the achievement of its compression.
waveleseriestthreshoding
- 使用matlab的小波分解和重建函数对24位的ADC采样数据进行小波变换和去噪,去噪使用阈值算法,阈值的选取具体使用了6种方法进行对比,对于不同信号其效果是不同的!把去噪后的信号和原始信号放在一个图中,使用不同颜色的曲线进行对比,效果可以很直观的表现。-Using matlab wavelet decomposition and reconstruction of the function for 24-bit ADC sampling data wavelet transform and de
Wavelet
- 使用二次样条小波的多尺度小波分解及重构算法,为非抽样小波-wavelet transform using quadratic spline wavelet filters
tool_image_6
- 基于fft和二进小波编写的二维小波多孔算法图像分解,效果不错-Fft and based on dyadic wavelet algorithm for the preparation of porous two-dimensional wavelet image decomposition, good results
tuxiangpipei
- 基于小波变换的多分辨匹配算法: 首先利用小波的多分辩率特性将匹配图像和模板图像分解到乙层上,并且只保留LL低频部分,然后利用归一化相关法作为相似性度量,进行由粗到细的相关匹配过程,每次利用下一层的匹配结果在上层小范围内搜索。这样做极大地减少了搜索空间,而且减少了每次匹配计算相似度的数据量。 -Wavelet multiresolution matching algorithms: a wavelet multi-resolution feature will match the imag
waveletDB4PRO
- 在理解了离散小波变换的基本原理和算法的基础上,通过设计VC程序对简单的一维信号进行小波分解系数;再通过改变分解得到的各层高频系数进行信号的小波重构达到消噪的目的-Understand the discrete wavelet transform in the fundamental principles and algorithms, based on the VC program by designing a simple one-dimensional signal wavelet coef
Waveletdec
- 小波分解,二近小波的分解算法,完全自己编写的-Second, wavelet decomposition algorithm almost completely write your own
haarfenjie
- 形态学HAAR小波分解算法,用形态学算子替代了原有的小波分解算子,使其在边缘细节的处理更好。-Morphological HAAR wavelet decomposition algorithm, using morphological operators to replace the original wavelet decomposition operator to handle better edge detail in.
Wavelet_Decomposition_For_Images
- 小波算法,用于小波分析,数据,图像等。一维,二维数据的小波分解。(Wavelet algorithm is used for wavelet analysis, data, images and so on. Wavelet decomposition of one dimensional and two dimensional data.)
二维离散小波变换
- mallatm.m:一维mallat快速分解函数 mallatr.m:一维mallat快速重建函数 mallatm2d.m:二维mallat快速分解与合成算法的演示函数,要调用mallatm.m与mallatr.m 在matlab命令行键入(Two dimensional discrete wavelet transform)