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123
说明： 绝对经典的模拟退火算法源文件
含遗传算法(Absolute classic simulated annealing algorithm with genetic algorithm source files)
- 2009-08-18 17:01:36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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Exp2
MATLAB simulation of group velocity dispersion in an optical fiber
- 2011-02-10 22:25:34下载
- 积分：1
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xuedingyu-yuanma
说明： 控制系统计算机辅助设计第二版--MATLAB语言与应用一书中的 源码(Computer Aided Control System Design Second Edition- MATLAB language and application of a source book)
- 2011-03-24 21:57:26下载
- 积分：1
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hemant13
WIND FRAM CONNECTED WITH GRID
- 2013-12-03 13:22:45下载
- 积分：1
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yhwxbm
迂回位相编码全息再现，是基于MATLAB的全息再现术。(Detour phase encoding holographic reproduction is based on the MATLAB representation of the holographic technique.)
- 2008-02-03 18:42:38下载
- 积分：1
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Wavelet-Recognition-matlab
基于Yale-B和CMU-PIE 人脸库上的实验结果显示本文算法对复杂光照具有较强鲁棒性，具备提取复杂光照条件下人脸图像有效特征的能力。小波变换 特征提取 matlab仿真(Experimental results based on Yale-B and CMU-PIE face show that the proposed algorithm has a strong light on the complexity of robustness, with the extraction of complex lighting conditions in human face images effective feature capabilities. Wavelet transform feature extraction matlab simulation)
- 2015-03-28 15:12:19下载
- 积分：1
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MATLABProgrammingIntroductionaclearversion
MATLAB编程-菜鸟入门清晰版，还不错的入门教材。(MATLAB Programming- Introduction to a clear version of rookie)
- 2010-09-24 10:12:30下载
- 积分：1
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linearmusic
说明： 经典MUSIC在均匀线阵的情况。本例给出了MUSIC算法估计出的算法图，从图中可以直接看到估计的角度。我们的仿真实验用的是8个阵列，2个接受信号。MUSIC算法的精度很高。(MUSIC classic in the case of uniform linear array. In this case gives the MUSIC algorithm to estimate the algorithm maps directly from the chart to see the estimated angle. Our simulation experiments using 8 arrays, two acceptable signals. MUSIC algorithm for high precision.)
- 2008-10-24 16:28:43下载
- 积分：1
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matode
userguide for solving odes with matlab for engineers
- 2010-05-14 19:50:58下载
- 积分：1
