搜索资源列表
RdwtSvdWatermarking
- 将原始载体图片经过一维冗余离散小波变换分成四个子频带，分别对每个子频带进行奇异值分解， 将水印图片灰度值直接按比例缩小嵌入到奇异值矩阵中，再将此矩阵进行一次奇异值分解得到奇异值当做此子带的奇异值， 重建此子带矩阵，而后将进行反冗余离散小波变换得到嵌入载体后的水印图像。-The original image after the one-dimensional vector redundant discrete wavelet transform is divided into four subba
DWT2
- 利用离散小波变换DWT实现关于图像水印处理方面的功能-Image watermarking program
02
- 2.1 傅里叶变换 2.1.1 经典傅里叶变换 2.1.2 傅里叶变换的基本性质 2.1.3 快速傅里叶变换 2.1.4 短时傅里叶变换 2.2 小波分析与多分辨率分析的历史 2.3 小波分析与傅里叶变换的对比 2.4 小波变换 2.4.1 连续小波变换 2.4.2 离散小波变换 2.4.3 高维小波连续变换 2.5 常用小波基函数 2.5.1 小波函数 2.5.2 小波函数系 2.5.3 复数小波 2.6 构造紧支撑正常小波基 2
DTWKbigBlock
- 首先将一幅图象分解成若干个块，在对各个块进行离散小波分解-First decompose an image into several blocks, each block in the discrete wavelet decomposition
DWT_1D
- 离散小波变换是指在特定子集上采取缩放和平移的小波变换，是一种兼具时域和频域多分辨率能力的信号分析工具。此变换运用可以缩放平移的小波代替固定的窗进行计算分析，主要应用于信号编码和数据压缩。-Discrete wavelet transform refers to the specific subset take scaling and translation on the wavelet transform, is a kind of multi-resolution ability both t
DWT-vs-DLWT
- 离散小波变换和方向提升小波变换的小波系数以及分解，重构。-Discrete wavelet transform and direction of lifting wavelet coefficients of wavelet transform and decomposition, reconstruction.
DWT_Trans_C_Programming
- 实现二维图像的离散小波变换，并扩展了小波基。-Realization of two-dimensional image of the discrete wavelet transform and expand the wavelets.
Wavelet1D
- 1维离散小波算法的实现与信号处理,VC6.0环境-And signal processing to achieve a dimensional discrete wavelet algorithm
Wavelet2D
- 2维离散小波算法的实现及信号处理，VC6.0环境-And signal processing to achieve a two-dimensional discrete wavelet algorithm, VC6.0 environment
dwt
- 离散小波变换DWT以及快速傅里叶变换程序-Discrete wavelet transform DWT and the procedures of fast Fourier transform
DWT-OMP
- 离散小波变换，再用OMP算法重构出原始信号-DWT transmission，OMP
DSP-CWT-DWT-STWT
- 这是我们数字信号处理实验DSP程序 附带matlab源代码实习小波变换、离散小波变换、短时傅立叶变换功能-This is our experimental DSP digital signal processing matlab source code internship program with the wavelet transform, discrete wavelet transform, Fourier transform functions
dwt_sj
- 离散小波变换dwt,常用于视频传输网络中，压缩视频图像-The discrete wavelet transform DWT, commonly used in video transmission network, video compression
WaveletClassLib
- 一个多维离散小波变换类代码。这个类可以分析的多维输入信号和处理后合成它。输入信号可以是一维信号（例如一个波），二维信号（如图像）或多维信号。 - a class of multidimensional discrete wavelet transform. This class can analyze the multidimensional input signal and synthesize it after process. The input signal can be
xiaobobianhuan
- 一种离散小波变换的快速分解和重构算法，详细介绍了算法的过程-A fast discrete wavelet transform decomposition and reconstruction algorithm, described in detail the process of the algorithm
wavelet
- 离散小波变换实现一维离散时间信号的迭代重构-One-dimensional discrete wavelet transform signal reconstruction
1-D-DWT
- 这是一维离散小波变换程序，里面附带程序说明，及实例讲解。-This is a one-dimensional discrete wavelet transform procedure, which comes with the program instructions and examples to explain.
2-D-DWT
- 这是二维离散小波变换程序，里面附带程序说明，及实例讲解。-This is a two-dimensional discrete wavelet transform, which comes with the program instructions and examples to explain.
3-D-dwt
- 这是三维离散小波变换程序，里面附带程序说明，及实例讲解。-This is a three-dimensional discrete wavelet transform, which comes with the program instructions and examples to explain.
daima
- 基于小波变换的图像数字水印算法研究 分析讨论了数字水印技术的基本原理、典型算法及数字水印的攻击方法，提出了一种基于离散小波变换的数字水印算法。该算法实现了基于小波变换的盲数字水印的嵌入和提取，提高了水印的安全性；将水印嵌入到原始图像离散小波变换的低频子带中，保证了算法的鲁棒性；利用人类视觉系统确定水印的嵌入强度，提高了水印的不可感知性。并在Matlab的环境下对该算法进行了实验。实验结果表明该算法对滤波、JPEG2000压缩等攻击手段具有较强的鲁棒性。-Image digital waterma