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image_compress
本程序利用奇异值分解对3通道彩色图像进行压缩分解，具体步骤如下：
压缩过程：
1. 选取子图像大小K值，把图像分解成M×M个子图像，IMG(s),s=1,2,…, M2，其中M=N/K，原始图像IMG大小为N×N。
2. 计算这M2个子图像的平均值average，对每幅子图像减去均值图像得到新图像。
3. 计算相关矩阵R，其元素定义为 。
4. 计算R的特征值与特征向量，计算每幅子图像与最大特征向量的内积，便得到编码，即压缩后的图像。
(This procedure using singular value decomposition of 3-channel color image compression decomposition, concrete steps are as follows: compression process: 1. Select the sub-image size K value, the image is decomposed into M × M sub-image, IMG (s), s = 1, 2, ..., M2, in which M = N/K, the original image IMG size N × N. 2. M2 calculate the average of sub-image average, for each sub-image minus the new images mean images. 3. Calculation of correlation matrix R, defined as its elements. 4. Calculation of the characteristics of R value and eigenvector calculated each sub-image with the largest eigenvector of the inner product, they will have to code, that is, the compressed images.)
- 2008-01-03 23:00:33下载
- 积分：1
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FDTD3D_PML
三维时域有限差分matlab程序，带完美匹配层(Three-dimensional finite-difference time-domain matlab program, with perfectly matched layer)
- 2013-12-16 13:15:58下载
- 积分：1
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matlab_classic_book
有关matlab较为基础的入门书籍。很适合初学者学习借鉴和使用。(For more matlab basic introductory books. It is suitable for beginners to learn and use.)
- 2013-07-24 21:28:45下载
- 积分：1
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EMD
介绍了其中处理EMD端点效应的方法，还有其中两种改进算法的程序，适合EMD的学者。(Introduces seven kinds of processing methods of endpoint effect the EMD, and one of the two kinds of improved algorithm procedures, suitable for scholars of the EMD.)
- 2015-07-06 20:41:37下载
- 积分：1
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my_QPSKmod_201107
QPSK调制解调仿真
从基带信号产生——IQ映射——调制——信道加噪——解调——判决及反映射——接收信号输出，每个步骤都画出了图形。
(QPSK modulation and demodulation simulation generated from the baseband signal- IQ Mapping- Modulation- channel plus noise- demodulation- judgment and reflect radio- reception signal output, each step to draw the graph.)
- 2020-09-13 12:47:58下载
- 积分：1
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Three_Phase_ACDCAC_PWMconverter
三相PWM交流-直流-交流变换器 (380V-680V-380V)(Three-Phase AC-DC-AC PWM converter)
- 2017-01-20 15:07:55下载
- 积分：1
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sourcecodematlabwatermarking.zip
matlab source code of water marking
- 2010-08-03 22:56:25下载
- 积分：1
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e7
说明： e7力线通信中的部分关键技术研究，拿来分享下
(e7 power line communications in some of the key technical studies, brought to share the next)
- 2010-03-15 11:29:34下载
- 积分：1
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diagramtheory
说明： 图论算法及其matlab程序.pdf，希望对大家有所帮助(The diagram theory calculate way and the procedure.pdf of its matlab
)
- 2009-07-24 12:16:15下载
- 积分：1
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Population-Graph
Population Graph in matlab R2010a
- 2013-05-08 03:31:45下载
- 积分：1
