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dct1_embed
数字水印 DCT域嵌入方法 matlab代码(数 ?炙 ???DCT域??入 ??matlab)
- 2008-07-04 23:35:56下载
- 积分：1
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Fil
一维信号的形态学滤波实现，包括开，闭，腐蚀，膨胀功能(morphology filter for 1-D signal,include open,close,Corrosion and dilate)
- 2018-12-10 14:13:55下载
- 积分：1
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lvbo
通过小波阈值去噪，选取db5小波进行6层分解，对心音信号进行去噪(By wavelet thresholding, select db5 wavelet decomposition of six layers of the heart sound signal de-noising)
- 2014-05-24 20:55:53下载
- 积分：1
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GVF_Snake
GVF相关代码及相关论文资料()，含:
GRADIENT VECTOR FLOW DEMONSTRATION(GVF) matlab code,
ITERATIVE WATERSHED SEGMENTATION (c-code), 与SNAKE GUI代码。
(所含文件:gvf_v5.zip，MateiDemo.zip, snake_demo.zip)
(gradient vector flow code and related information paper (), containing : GRADIENT VECTOR FLOW DEMONSTRATION (gradient vector flow) matl ab code, ITERATIVE WATERSHED SEGMENTATION (c-code). with Snake GUI code. (Contained in documents : gvf_v5.zip, MateiDemo.zip. snake_demo.zip))
- 2021-02-03 17:49:58下载
- 积分：1
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dual-tree
首先将非平稳的故障振动信号进行双树复小波包分解，得
到不同频带的分量；然后对每个分量求其峭度值和相关系数并进行比较；最后选取峭度值和相关系数较大的分量
进行软阈值降噪和双树复小波包重构，即可有效地消除振动信号中噪声的干扰，同时保留信号中的有效信息即实
现了故障特征信息的提取。(In view of the above situation, a new fault diagnosis
method is proposed based on dual-tree complex wavelet packet transform and threshold de-noising. Firstly, the
non-stationary fault signal is decomposed into several different frequency band components through dual-tree
complex wavelet packet decomposition. Secondly, Kurtosis and the cross-correlation coefficient of each
component are obtained and compared. Due to the kurtosis reflecting the signal variations, if the kurtosis value is
bigger, the degree of the change of signal is bigger too. The correlation coefficient can reflect the proximity
between the component and the original signal at the same time, the correlation coefficient is bigger, the more
similar with the original signal. Finally, the components that have a bigger value are chosen to be de-noised by a
soft threshold and reconstructed by dual-tree complex wavelet packet transform. The noise interference was
eliminated effectively, and the effective si)
- 2014-05-28 17:02:14下载
- 积分：1
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daqituanliu
说明： 对灰阶图像进行大气湍流滤波，使图像达到需要达到的效果(The atmospheric turbulence filtering is applied to the gray scale image to achieve the desired effect)
- 2019-05-19 14:24:00下载
- 积分：1
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byjc
说明： 对于一些图像来说，常用的边缘检测算法有时候无法设立合适的阈值将它们的梯度较小的模糊边缘检测出来。为了解决这个问题，有两种解决方法：将图像方差标准化，拉大模糊边缘的梯度值，或通过设置sigmoid函数，将像素所在区域的信息传递到梯度值中去，对其进行调整，就能找到合适阈值，有效地将模糊边缘提取出来。本程序把这两种算法实现并与与传统算法进行了比较。(For some images, the commonly used edge detection algorithm sometimes can not be an appropriate threshold for the gradient of their smaller fuzzy edge detected. To solve this problem, there are two solutions: the image variance standardization, widening the fuzzy edge of the gradient value, or by setting the sigmoid function pixel region to disseminate the message to the gradient values to adjust, on the can find a suitable threshold, effectively extracted fuzzy edge. This procedure of these two algorithms with the traditional algorithm.)
- 2008-10-26 18:49:00下载
- 积分：1
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tiaxian
自适应波束形成的三个准则：MMSELCMVMSINR(Three criteria for adaptive beamforming: MMSELCMVMSINR)
- 2021-03-13 16:49:24下载
- 积分：1
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Exe7_2
设计一个9x9的棋盘窗口，用黑白相间颜色填充棋盘。棋盘大小为600x600，标题为“棋盘”，窗口大小不可改变。(The design of a 9x9 board window, with black and white and white and white. The size of the board is 600x600, the title is board , the window size can not be changed.)
- 2015-10-23 19:26:30下载
- 积分：1
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EOSap_Smoothing
能够实现对高光谱数据影像的平滑，可以根据需要设置平滑参数并且能够批量处理(Hyperspectral Smooth)
- 2015-04-28 08:26:52下载
- 积分：1
