搜索资源列表
DWT
- 小波变换和小波逆变换的C++实现,令附有测试数据和结果供参照。-Wavelet transform and wavelet inverse transform of the C++ implementation, so that with test data and results for reference.
dwt
- 实现基于小波变换数字水印的嵌入和提取,并实现对压缩,噪声等攻击的检测。-Using the same key after a chaotic sequence of scrambling the watermark information to achieve the double encryption, consider the wavelet energy distribution problem, the watermark information embedded in low-freq
src
- Rice 小波变换工具箱,国外好多matlab程序都需要引用这个工具箱中的函数。-Rice dwt
PMatermarkingr
- 提出一种基于DWT和DCT域的有意义二值图像数字水印算法 利用Arnold变换对水印序列进行置乱,消除象素的空间相关性,增加水印的安全性 而结合小波波变换和离散余弦变换的特性,将水印信息嵌入到图像变换域的低频和中频系数中,提高水印的鲁棒性和不可见性 实验证明该算法具有较好的抗压缩、抗噪音和抗剪切性。 -Making meaningful binary image digital watermarking algorithm based on DWT and DCT domain using
DWT
- 基于Opencv4.2实现的离散小波变换及其逆变换,编程环境visual studio 2010,编程语言c-DWT based on opencv4.2 with visual studio 2010 and C++
erweixiaobo
- 实现二维小波变换此示意程序用DWT
pm_haar
- MATLAB函数为pm哈尔1-D DWT算法 离散哈尔的基本原理小波变换-MATLAB function for pm Haar 1-D DWT algorithm,Fundamentals of the discrete Haar wavelet transform
matlab-dwt-shuiyin
- matlab小波变换 实现数字水印 源码-matlab shuiyin
DWT
- 此代码为多分辨率小波变换,可对原始信号进行多尺度分解-This code for multi-resolution wavelet transform, the original signal can be multi-scale decomposition
mallat
- 离散小波变换 mallat算法实现 小波变换-DWT wavelet transform algorithm mallat
Image-segmentation
- 这个是2D-DWT的函数,是haar小波 c是图像像素矩阵 steps是变换的阶数-This is a function of Haar, is 2D-DWT wavelet C is the image pixel matrix steps is the order of the transformation
DWT
- 小波变换矩阵函数,可以调用各种函数,实现多层小波变换-Wavelet Transform Function
FWT_DB
- 此示意程序用DWT实现二维小波变换,二维信号可以是实测二维数据,也可以是图像(需转换为二维数据)-This schematic procedure DWT is used to implement the two-dimensional wavelet transform, the two-dimensional signal can be measured in 2 d data, can also be a image (need) is converted into a 2 d data
小波变换
- DFT小波变换,主要用于图像视频处理中,是DFT的最基本变换形式。(Discrete wavelet transform,is mainly used for image processing,and it's the most basic form of the transformation.)
Digital-Watermarking-master
- 将要嵌入的多张水印图利用不同正交码调制,之后嵌入到被嵌入图片的小波变换系数中,对小波系数做逆变换,得到已嵌入水印图的图像。利用逆过程可提取出被嵌入的图像(The multiple watermark images to be embedded are modulated by different orthogonal codes, and then embedded into the wavelet coefficients of the embedded images, and the inv
心电信号检测与分类算法的研究
- (1)心电信号预处理 心电信号是一种低频且含有众多噪声干扰的信号。针对心电信号存在的 噪声干扰问题,本文采用了平稳小波变换结合双变量阈值的方法对其进行去 噪处理。通过对心电信号进行八层平稳小波变换,得到不同的小波系数,采 用双变量阈值函数表达式对其进行处理得到新的小波系数,最后进行逆平稳 小波变换实现小波重构,完成心电信号去噪。Matlab 仿真结果显示,本文算 法的准确率较高,信噪比达到 84.5934dB。 (2)心电信号波形识别 反映心电信号的特征部分往往是信号的突变点,因此需