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MATLAB
matlab常见的算法,很有用的,里面有很多的算法,工程人员很有用。(matlab common algorithm, very useful, there are many algorithms, engineers useful.)
- 2010-06-18 17:30:46下载
- 积分:1
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dc
说明: 用PSCAD做的三电平svpwm,对学电力电子和风力发电的人应该有用。(svpwm)
- 2009-12-17 20:09:03下载
- 积分:1
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levelsetcode
用matlab编的基于水平集的图像分割.m文件(Matlab code using level set based image segmentation. M file)
- 2010-05-18 21:21:51下载
- 积分:1
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DCTlicheng
研究表明,构成K一L变换矩阵的向量也就是ToePhtz矩阵的特征向量。与此同时,离散
余弦变换矩阵逼近于ToePutz矩阵的特征向量矩阵,所以离散余弦变换矩阵与自然图像的
K一L变换矩阵十分相似。经过离散余弦变换后的变换系数块的协方差矩阵Cy非常接近对角
阵,即除了对角线元素以外,其它很多元素都近似为0,并且在左上角集中了主要能量。这
反映了自然图像大部分区域变化不大,亮度突变只占少数,即图像能量以低频成分为主的特
性。通过变换后的量化,舍弃对视觉效果影响较小的次要信息,可达到进一步的压缩效果。
虽然从去相关性能的意义上讲,DCT是一种次于K一L变换的准最佳变换,但是从算法实现的角度来看,DCT则远远优于K一L变换。首先,当图像的分块大小确定后,DCT的变换矩阵也就随之确定了,不随输入信号的统计特性变化而变化 其次,二维DCT能够分解成两次一维DCT,有利于硬件实现。
(Studies have shown that constitute a K L transformation matrix vector is ToePhtz eigenvector of the matrix. At the same time, discrete
The cosine transform matrix approximation in ToePutz matrix eigenvector matrix, so the discrete cosine transform matrix and natural images
Is very similar to a K L transformation matrix. After discrete cosine transform, the transform coefficient block of Cy is very close to the diagonal of covariance matrix
Matrix, namely except diagonal elements, many other elements are approximate to 0, and focused the main energy in the upper left corner. this
Reflects the natural images most area changed little, brightness mutations accounted for only a few, the energy is given priority to with low frequency components of image
Sex. Through quantitative after transformation, abandoning smaller effect on the visual performance of secondary information, can achieve further compression effect.
Although from related to the performance of the sense, DCT is a kind o)
- 2013-11-25 16:00:24下载
- 积分:1
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MATLAB5.3精彩 编程及高级应用
MATLAB精彩编程及高级应用,适用于进阶编程人员学习参考(Advance Application for MATLAB)
- 2017-07-10 06:22:36下载
- 积分:1
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genm
说明: m序列生成程序matlab实现此函数用来生成最大长度线性移位寄存器序列(m sequence generated matlab program to achieve this function used to generate the maximum length linear shift register sequence)
- 2008-09-16 16:23:28下载
- 积分:1
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apprentissage_MLP_sin(2x)
Apprentissage de la fonction sin(2x)
- 2013-01-29 09:23:13下载
- 积分:1
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freetype-2.3.5-src
FreeType is a software font engine. version 2.3.5(FreeType is a software font engine that is designed to be small, efficient, highly customizable and portable while capable of producing high-quality output (glyph images). It can be used in graphics libraries, display servers, font conversion tools, text image generation tools, and many other products as well.)
- 2014-09-09 19:15:53下载
- 积分:1
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[IEEE]SystemC.std.1666-2011
SystemC官方最新资料,出自IEEE计算机协会,由设计自动化委员会资助。(SystemC latest official information the IEEE Computer Society, funded by the Design Automation Committee.)
- 2015-03-26 15:09:02下载
- 积分:1
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chua2
说明: 混沌时序多步预测函数 chen函数的matlab仿真,非常有用,连续的非线性函数(Multi-step prediction of chaotic time series function chen function matlab simulation, very useful, continuous nonlinear function)
- 2011-03-23 22:16:41下载
- 积分:1