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cs.rar
- 压缩传感理论的一个简单例子,首先对信号进行稀疏采样,然后利用MP算法对信号进行重建。,Compressed sensing theory of a simple example, first of all, the signal sparse sampling, and then use MP algorithm of signal reconstruction.
nsct_toolbox.rar
- 非下采样contourlet变换用于图像降噪,多尺度几何分析的应用。 ,Contourlet transform non-down-sampling for image noise reduction, multi-scale analysis of the application of geometry.
用Matlab实现的数字音频水印嵌入与提取
- 并且具有对抗加噪、重采样、重量化、滤波以及MP3有损压缩等攻击的良好鲁棒性,fimpr
mcmcstuff.rar
- 本源码是基于Markov chain Monte Carlo (MCMC)的Bayesian inference工具包,其中包括MCMC采样,基于MCMC的高斯分类,同时描述了采样的一些方法。其中还有使用文档,toolbox is a collection of Matlab functions for Bayesian inference with Markov chain Monte Carlo (MCMC) methods
resample.zip
- 用matlab 实现图像的采样,可实现128 ,64,32点采样,Using matlab to achieve the image sampling, can be realized 128, 64,32-point sampling
nsct_toolbox
- NSCT工具箱,研究非降采样contourlet变换的工具-NSCT toolbox to study the transformation of nonsubsampling contourlet
PLY_IO_Read_Write
- PLY文件的读取和写入程序:PLY文件是一个三维图形的数据存储格式,包括了三维曲面上所有采样点的坐标,以及所有采样点间的网络拓扑-A program which can read and write a PLY file
harris_corners_image_registration
- 应用harris算子进行角点检测,然后利用相关性检测得到匹配焦点,然后进行图像的重采样,适于对于彩色图像的处理,对于灰度图像,只要将harris算子检测时的图像从彩色道灰度图像的语句去掉即可-Application of operator harris corner detection, and then make use of relevant test match to be the focus, and then carried out resampling images, suitabl
resample
- 四邻域加权平均算法 实现了图像的高质量重采样-resample function
resampling
- 粒子滤波改进的重采样程序,Performs the resampling stage of the SIR -Improved particle filter resampling procedure, Performs the resampling stage of the SIR
code
- 无下采样的contourlet变换阈值去噪; 无下采样的contourlet变换matlab7.0工具箱-No down-sampling of Contourlet Transform Thresholding Denoising without down-sampling the transform Contourlet matlab7.0 Toolbox
shuangxianxingchazhisuofangtuxiang
- 本实验采用双线形插值技术进行图像的缩放。该方法输出的像素值是它在输入图像中2*2邻域采样点的平均值,它根据某像素周围4个像素的灰度值在水平和垂直方向两个方向上对其插值。在进行图像缩放时,其考虑到了相邻近的像素点间的关系。这种平均算法具有放锯齿效果,创造出来的图像拥有平滑的边缘,锯齿难以察觉,所以相对于最近邻法,其的效果比较好。在进行程序设计时,程序的输入参数为图像矩阵和结果图像的水平和垂直方向的像素数,可以忽略混叠效应。在程序运行之后可以对其前的实验结果进行比较分析异同,进而更深刻的理解最近邻插
lunkuobianhuan
- 一种非常新颖的多角度多尺度变换,轮廓变换的 改进,非下采样轮廓变换,可用于图像处理的多个方面-A very innovative multi-angle multi-scale transformation, transformation to improve the profile, non-down-sampling profile transform, image processing can be used in many areas of
yizhonggaoxiaodehunheyuantuoyuanjiancefangfa
- 提出了一种新的基于边缘连续特征的HT( ECHT) 混合圆/ 椭圆检测方法,利用连续的 边缘曲线段来决定HT 采样点,实验仿真结果表明该算法较好地解决了标准RHT 检测中无效 采样概率大、无效积累时间多的问题。-A new row based on the edge of the characteristics of HT (ECHT) mixed circle/ellipse detection method, using a continuous curve above the ed
yizhongsuijiduotuoyuanjiancedekuaisusuanfa
- 针对多椭圆检测问题提出了一种快速随机检测算法。该算法利用在图像中随机采样到的一个边缘点和 局部搜索到的两个边缘点以及这三个点的邻域信息确定候选椭圆,再将候选椭圆变换为对应圆,通过确认真圆来确 认真椭圆。在确定候选椭圆时,最大限度地减少随机采样点数 剔除更多的非椭圆点,降低了无效采样,减少了无效 计算。数值实验结果表明:该算法具有良好的鲁棒性,其检测速度比同类算法快-Ellipse detection problem for many a fast random detect
demo1
- 粒子滤波的一种实现形势,主要包括boots方法,重采样,以及基本的粒子滤波方法。-Particle filter implementation of a situation, including boots methods, resampling, as well as the basic particle filtering method.
CWsinal
- matlab绘制CW信号的时域波形,同时对信号进行频谱分析,并考察采样频率以及信噪比对频谱分析的影响。-matlab draw CW signal time-domain waveform, and spectral analysis of signals and the sampling frequency and signal to noise ratio study of the impact of spectrum analysis.
contourlet_toolbox
- contourlet工具箱,包括五株采样、方向滤波器、塔型滤波器及SNR等函数,可直接对图像进行基于contourlet的分解和重构-contourlet toolbox, including the five samples, the direction of filters, tower-type filter and the SNR, such as function, can be directly based on image decomposition and reconstruct
matlab
- 带通滤波器(Butterworth、椭圆、窗函数),采样率fs=2000Hz, 通带范围为300 -600Hz,阶数自选, 画出频率响应并分析比较, 对cameraman.tif图像分别添加椒盐噪声(密度为0.03)和高斯白噪声(均值为0,方差为0.02)的图像,利用三种方法进行去噪,显示原始图像、加噪图像和去噪图像并对实验结果进行分析(Band pass filter (Butterworth, ellipse, window function), sampling rate FS = 20
Matlab图像处理
- 图像处理中,msk的设计,可实现变密度采样(Variable density sampling)