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几种经典的图像噪声方差估计方法

于 2021-04-06 发布文件大小:4450KB

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几种经典的图像噪声方差估计方法（论文和源代码）(Several classical noise estimation method (articles and source code))

文件列表：

noise estimation
................\Automatic noise estimation in images using local statistics.pdf,880314,2011-04-27
................\icip2012_camera_ready.pdf,1049102,2013-03-02
................\Image Noise Level Estimation by.pdf,3007879,2014-12-15
................\PCAnoise.m,3616,2015-01-15
................\PCANoiseLevelEstimator.m,6211,2012-06-15
................\varmode.m,625,2015-01-14

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guangbanzhongxintiqu
本程序主要实现暗背景下含高斯噪声的光斑滤除噪声，实现光斑中心提取。采用了sobel算子和梯度倒数加权滤噪、最大类间方差法（Otsu）确定阈值、质心法提取光斑中心坐标。(The program is mainly realized under a dark background Gaussian noise spot containing noise filtering, to achieve spot center extraction. Using sobel operator and gradient inverse weighting filter noise, Otsu method (Otsu) to determine the threshold, the center coordinates of the spot centroid extraction.)

2020-09-24 14:37:48下载

积分：1
Joint entropy
计算两个离散变量x和y的联合熵z = H（x，y）。输入：x，y：两个相同长度的整数向量输出：z：联合熵可以使用，有利于学习目的(Compute joint entropy z=H(x,y) of two discrete variables x and y. Input: of x, y: two integer vector of the same length Output: z: joint entropy good for learning purposes)

2020-06-23 11:20:01下载

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decon
基于最小相位雷克子波反褶积的matlab程序，有脉冲反褶积，最小平方反褶积和预测反褶积(Matlab program based on the the Leike Zi wave pulse deconvolution)

2012-05-25 13:56:49下载

积分：1
2
说明： Research on TDOA / AOA Hybrid Positioning System Based on Kalman filtering

2012-08-26 10:57:34下载

积分：1
speedyGeneticalgorithm
Speedy GA Graphical analysis

2018-03-08 15:01:20下载

积分：1
picture--chasing
背景建模和前景分割的方式把运动车辆提取出来。并进行最近临关联，输出目标轨迹。 MeanShift运动目标跟踪 matlab程序 1.截取跟踪目标矩阵rect 2.求取跟踪目标的加权直方图hist1 3.读取视频序列中的一帧，先随机取一块与rect等大的矩形，计算加权直方图hist2。 4.计算两者比重函数，如果后者差距过大，更新新的矩阵中心Y，进行迭代（MeanShift是一种变步长可以迅速接近概率密度峰值的方法），直至一定条件后停止。这两种算法为处理图像跟踪的基本方法 (Background modeling and foreground segmentation the extracted moving vehicles. Pro associated output and the target locus. Target tracking matlab program MeanShift movement. Interception tracking the target matrix rect strike a tracking target weighted histogram hist1 3. Reads a video sequence, randomly take a with the rect large rectangular, calculate the weighted histogram hist2. 4. Calculate both the proportion of function, if the latter gap is too large to update the new center of the matrix Y conducted the iteration (MeanShift is a variable step size can be rapidly approaching the peak of the probability density) until certain conditions to stop. The basic method of these two algorithms for processing the image tracking)

2012-11-12 16:44:21下载

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wavelet-image-fusion
小波方法的多焦点图像融合，用的融合规则为Yong Yang：A Novel DWT Based Multi-focus Image Fusion Method的方法(Wavelet method for multi-focus image fusion, the fusion rules: A Novel DWT Based Multi-focus Image Fusion Method method Yong Yang,)

2012-12-08 22:20:40下载

积分：1
基于图象小波变换的图象编码的经典算法SPIHT(Matlab)
基于图象小波变换的图象编码的经典算法．程序中包括压缩和解压缩的过程，有可执行的示例．(Image-Based Wavelet Transform Image Coding Algorithm classic. Procedures, including compression and decompression process, the sample has executable.)

2020-07-07 14:28:57下载

积分：1
image_segment
Random Walker图像分割Matlab源代码，需要安装图形分析工具箱，地址http://eslab.bu.edu/software/graphanalysis/，给出了一个应用例子。(Random Walker Image Segmentation Matlab source code, need to install the graphical analysis toolbox, address http://eslab.bu.edu/software/graphanalysis/, gives an application example.)

2010-02-28 00:47:44下载

积分：1
Texture
计算四个方向的灰度共生矩阵，将其作为纹理特征，是一种纹理特征提取算法。(Calculation of the four directions of Gray Level Co-occurrence matrix as texture features, is a kind of texture feature extraction algorithm.)

2008-03-11 19:51:54下载

积分：1

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几种经典的图像噪声方差估计方法

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