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二维提升小波,matlab实现.Multi-level discrete two-dimension wavelet transform based on lifting method.
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小波基的构造
求解小波尺度函数离散整数点的值
本函数实现尺度函数经伸缩后的离散值
采用双尺度方程求解小波基函数
多孔trous算法(undecimated wavelet transform)实现小波变换
绘图-Wavelet base structure
Solving discrete wavelet multi-scale functions the value of the integer point
This function by the expan
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Multi-level discrete 2-D wavelet transform with the Cohen-Daubechies-Feauveau (CDF) 9/7 wavelet. -Multi-level discrete 2-D wavelet transform with the Cohen-Daubechies-Feauveau (CDF) 9/7 wavelet.
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离散小波变换,单尺度一维离散小波分解,多层一维分解,对雷达单道数据进行小波离散处理及显示-Discrete wavelet transform, a single one-dimensional discrete wavelet scale, multi-dimensional decomposition, single-channel radar data processing and display discrete wavelet
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研究了基于多尺度分析的图像融合算法体系,以及离散小波变换的移变性原因,提出了一种混合融合算法。-Studied the image fusion algorithm based on multi-scale analysis system, and move the degeneration reasons of discrete wavelet transform, a hybrid fusion algorithm is proposed.
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小波变换的基本原理仿真附加部分,包含方波信号多级离散小波处理结果及其应用-
The basic principle of wavelet transform simulation additional portion comprising a square wave signal of multi-level discrete wavelet processing results and its application
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在MATLAB环境中,进行图像的离散傅里叶变换和离散余弦变换
在MATLAB环境中,进行图像的离散小波变换,观察子带对重建图像的影响,理解小波变换的多分辨率特性(In the MATLAB environment, the image of the discrete wavelet transform, observe the sub-band on the reconstruction of the image, understand the multi-resolution characte
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本课题为基于MATLAB的小波变换dwt和离散余弦dct的多方法对比数字水印系统。带GUI交互界面。有一个主界面GUI,可以调用dwt方法的子界面和dct方法的子界面。流程包括,读取宿主图像和水印图像,嵌入,多种方法的攻击(剪切,加噪,旋转等),提取,最后利用psnr峰值信噪比进行评价不同攻击下,鲁棒性的好坏。(This topic is based on MATLAB wavelet transform DWT and discrete cosine DCT multi method comp
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本课题为基于MATLAB的小波变换dwt和离散余弦dct的多方法对比数字水印系统。带GUI交互界面。有一个主界面GUI,可以调用dwt方法的子界面和dct方法的子界面。流程包括,读取宿主图像和水印图像,嵌入,多种方法的攻击(剪切,加噪,旋转等),提取,最后利用psnr峰值信噪比进行评价不同攻击下,鲁棒性的好坏。(This project is based on MATLAB wavelet transform DWT and discrete cosine DCT multi method co
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