搜索资源列表
MATLAB
- 对噪声信号中的正弦信号,通过Pisarenko谐波分解方法、Music算法和Esprit算法进行频率估计,信号源是: 其中, , , ; 是高斯白噪声,方差为 。使用128个数据样本进行估计。 1、用三种算法进行频率估计,独立运行20次,记录各个方法的估计值,计算均值和方差; 2、增加噪声功率,观察和分析各种方法的性能。-Sinusoidal signal in the noise signal through the Pisarenko harmonic decomposition metho
otsu
- 使用matlab实现最大类间方差法,即OTSU-The use of matlab for maximum between-class variance, that is, OTSU
Texture
- matlab的纹理计算程序,能够计算熵、对比度、均值、方差-texture calculation procedure using matlab
用matlab实现自适应图像阈值分割最大类方差法代码
- 这是一个关于图像自适应阈值分割的方法--最大类方差,这是该方法实现的代码
jiaozheng
- 这是一个阵列校正的程序,通过计算协方差矩阵,利用矩阵元素间的关系计算出阵列的幅相误差-This is an array of calibration procedures, by calculating the covariance matrix, the relationship between the matrix elements of the array to calculate the amplitude and phase errors
OTSU
- 利用最大类间方差法(OTSU)求出对图像进行二值化处理的最佳阈值,从而进行图像二值化处理。 -Using the maximum between-class variance method (OTSU) obtained image binarization best treatment threshold, and thus image binarization treatment.
otsu2
- 大津阈值分割法,也称最大类间方差法,利用图像的灰度分布密度函数定义图像的交叉熵。 交叉熵可看作是两个概率系统(即图像背景及目标)的信息量之间的差异。求出的交叉熵越大,则分割效果越好。 -Otsu threshold segmentation method, also known as Otsu method, the use of gray-scale image distribution density function definition images of cross-ent
imagequality
- 自己编写的图像质量评价函数,包括方差、平均梯度、模糊熵、信息熵-I have written the image quality evaluation function, including the variance, with an average gradient, fuzzy entropy, information entropy
KLtransform
- (1)应用9×9的窗口对上述图象进行随机抽样,共抽样200块子图象; (2)将所有子图象按列相接变成一个81维的行向量; (3)对所有200个行向量进行KL变换,求出其对应的协方差矩阵的特征向量和特征值,按降序排列特征值以及所对应的特征向量; (4)选择前40个最大特征值所对应的特征向量作为主元,将原图象块向这40个特征向量上投影,所获得的投影系数就是这个子块的特征向量。 (5)求出所有子块的特征向量。 -(1) the application of 9 × 9 window
otsu
- 最大类间方差法,给出了详细的介绍,希望能对大家学习图像处理有帮助-Otsu law, gives a detailed introduction to all of us hope to be helpful to learn image processing
otsu
- 最大类间方差法原理:最大类间方差法是由日本学者大津于1979年提出的,是一种自适应的阈值确定的方法,又叫大津法-Otsu Method: Otsu is Otsu scholars from Japan in 1979 to argue that there is an adaptive threshold to determine the method, also known Otsu method
shipin
- 利用改进的ostu即最大类间方差方法进行视频图像二值化-Ostu that the use of improved Otsu method of video image binarization
AStudyoWaveletImgaeCoding
- 通过测量小波变换产生图像的熵、方差、最大值、最小值、平均值及各子图像内小波变换系数间的相关性来确定各子图像应采取的编码策略-Wavelet transform generated by measuring the image entropy, variance, maximum, minimum, average and sub-image with the wavelet transform coefficients of correlation between each sub-image
imageevaluation
- 图像质量评价,熵、平均梯度、边缘强度、方差等-Image quality evaluation, entropy, average gradient, edge strength, variance, etc.
chap08
- ex6_1 ~ ex6_3二项分布的随机数据的产生 ex6_4 ~ ex6_6通用函数计算概率密度函数值 ex6_7 ~ ex6_20常见分布的密度函数 ex6_21 ~ ex6_33随机变量的数字特征 ex6_34 采用periodogram函数来计算功率谱 ex6_35 利用FFT直接法计算上面噪声信号的功率谱 ex6_36 利用间接法重新计算上例中噪声信号的功率谱 ex6_37 采用tfe函数来进行系统的辨识,并与理想结果进行比较 ex6_38 在置信度为0
VarAnalysis
- 清华大学数学实验之方差分析幻灯片与Matlab源码-Tsinghua University, Experimental Math slides of interpolation and fitting with the MAT-source
zishiying
- 基于辅助变量的最小方差自校正控制,有仿真程序和论文。-Auxiliary variable based on the minimum variance self-tuning control, a simulation program and papers.
im_mean_var
- 计算图像的均值和方差函数,matlab编写的,可以添加到自己的图像处理中-Calculated the mean and variance of the image function, matlab prepared, can be added to their own image processing
PCA-matlab
- 里面包含主元分析PCA的Matlab代码,包括提取主元,求方差贡献率,绘制贡献率直方图等-Which contains the principal component analysis PCA of the Matlab code, including the extraction of the main element, seeking variance contribution rate, contribution rate of histogram mapping, etc.
tvdenoise
- 彩色或灰度图像的tvd去噪 利用总方差最小化得方法实现图像的光滑去噪的matlab小程序 由Chambolle在2004年提出 -Tvd color or grayscale image denoising was used to minimize the total variance method to achieve a smooth image denoising matlab small program made in 2004 by Chambolle