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基于形态学的权重自适应图像去噪
基于形态学的权重自适应图像去噪,通过形态学的图像去噪效果,引入加权形态学去噪的应用。(Based on the morphological weight adaptive image denoising, through the morphological image denoising effect, the introduction of weighted morphological denoising application.)
- 2021-04-15 22:28:54下载
- 积分:1
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Locating-Voltage-Sags
电压跌落是最严重的动态电能质量问题之一,
精确定位电压跌落起止时间是应对电压跌落问题的
重要前提和基础。由于电压采样信号往往有噪声分
量,现有的方法在定位电压跌落的起止时间时存在
局限性。本文提出利用多小波变换及相邻系数去噪
的电压跌落定位方法。多小波兼有对称性、正交性、
有限支撑性和二阶消失矩等优异的信号处理性能,
利用GHM多小波可以准确定位电压跌落起止时间。
多小波变换系数在每层之间具有对应关系,多小波
相邻系数将紧相邻的若干个系数作为一个整体来确
定阈值,考虑了系数之间的相关性,能获得更好的
去噪效果。通过 Matlab 进行仿真验证,仿真结果表
明,所提出的方法的正确性。
(Voltage sag is one of the most serious
dynamic power quality problems. Critical start-time
and end-time are important indices for voltage sags.
But the sampling signals often have noisy component,
the locations of start-time and end-time are hard to get.
Wavelet is an effective tool for those non-stationary
signal processing and has been used in this field. Local
feature in the signal can be enlarged after the
transformation using the scalar wavelet. But scalar
wavelets cannot contain orthogonality, symmetry,
compact support and higher order of vanishing
moments simultaneously. In this thesis, multi-wavelets
GHM is used to detect and locate power quality
disturbances. Multi-wavelets offer many excellent
properties such as the same approximation order but
more compact support. The dependence of the
multi-wavelets coefficients varies with the level, so
neighboring coefficien)
- 2014-03-25 17:08:50下载
- 积分:1
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edge_detect
本代码为Canny检测算法的实现,功能为对图象边缘确定与提取(The code for the the Canny detection algorithm, determine and extraction the edge of the image)
- 2013-04-29 11:02:33下载
- 积分:1
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facereganization
人脸识别的实例,其中含有项目题目,解决方案以及实现程序和工具箱(Examples of face recognition, which contains the project topic, the solution as well as the implementation procedures and toolbox)
- 2009-02-23 20:15:23下载
- 积分:1
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vortex beam
matlab程序,产生涡旋光束,光强以及相位图,在科研上很有用,简单快速。(The matlab program produces vortex beams, light intensities, and phase diagrams, which are useful, simple, and fast in scientific research.)
- 2017-08-31 15:49:16下载
- 积分:1
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WPSNR
计算信噪比的测试程序代码,利用对比敏感度函数(CSF)测量失真图像的空间频率。(Calculation of the test code SNR, the contrast sensitivity function (CSF) measurement of the spatial frequency of image distortion.)
- 2017-09-04 11:12:15下载
- 积分:1
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555712
RGB颜色转换源码程序,根据RDB颜色组成结构,使用位运算实现RGB颜色转换。(RGB color conversion source program, according to RDB color composition structure, using bit operations to achieve the RGB color conversion.)
- 2014-12-09 22:47:54下载
- 积分:1
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85375527common_im_processing
说明: 这是一个实现图像缩放的MATLAB源代码,可以有用户自己调节缩放的倍数(This is an image scaling to achieve the MATLAB source code, users can zoom in multiples of its own regulation)
- 2008-11-04 21:57:02下载
- 积分:1
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gravity
用重心法实现光斑中心定位,matlab程序(Facula Center Location by the Method of Center of Gravity)
- 2020-06-24 19:00:01下载
- 积分:1
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CustomLinkLibrary
说明: Custom Link Library example source code
- 2020-03-01 21:33:36下载
- 积分:1