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数字内容安全LSB替换算法MATLAB实现
matlab实现lsb替换算法，包括水印嵌入、提取及PSNR计算评估。(Matlab implements LSB replacement algorithm, including watermark embedding, extraction and PSNR computation and evaluation.)
- 2018-10-31 11:03:06下载
- 积分：1
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多阈值
基于多阈值的图像分割()
- 2020-07-09 20:38:55下载
- 积分：1
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311826200337647
该算法是通过对图像使用色彩滤波矩阵来检测图像是否进行了篡改(The algorithm detects whether the image is tampered with by using the color filter matrix.)
- 2018-05-07 13:49:27下载
- 积分：1
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pca
运用pca算法降维，提取主要特征值，从而达到降维目的(Dimensionality reduction using pca algorithm, extract the main features of the value of)
- 2020-12-18 01:39:12下载
- 积分：1
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kpca
KPCA是一种PCA的改进方法,很值得一看,很实用!(KPCA is an improved method of PCA, it is worth a visit, it is useful!)
- 2020-09-18 15:27:53下载
- 积分：1
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jQueryUploadifyDemo
他很反感；归属地分块地方好法国号法国号韩国胡富国(He was disgusted attribution to block a good place to Hu Fuguo French horn French horn Korea)
- 2013-11-02 11:16:46下载
- 积分：1
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画线,园,矩形,VC
图形编程：画线,园,矩形,VC(graphical programming : line drawing, the landscape, rectangular, VC)
- 2005-01-02 22:22:43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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小波变换c代码
说明： 利用c语言快速实现各类小波变换，案例丰富(Using C language to realize all kinds of wavelet transform quickly, with rich cases)
- 2021-03-12 17:59:25下载
- 积分：1
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find_-contours
可以采用形态学方法找出边界，比较有益的初学者的学习方法。(It s very good for a newer to learning about image processing.)
- 2013-12-30 14:44:05下载
- 积分：1
