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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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NormFitGA
NormFitGA 用动态线性标定适应值的遗传算法求解一维无约束优化问题
(NormFitGA dynamic linear calibration to adapt to the value of the genetic algorithm for solving one-dimensional unconstrained optimization problems)
- 2012-12-03 23:20:19下载
- 积分:1
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createfigure_PDF_CK
plot of 5 variable in a graph
- 2010-10-05 20:42:17下载
- 积分:1
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PV_ThreePhase_PQ_bingwang
对严重故障情况下该微电网系统故障恢复能力和维持电能质量能力进行仿真试验 ,
结果表明所建微电源及微电网模型都能较好模拟实际运行情况 ,为微电网的进一步研究提供了仿真平台 。(Under the condition of severe fault, the fault recovery ability and power quality of power system are simulated,
The results show that the micro power supply and micro grid model can better simulate the actual operation situation, and provide a simulation platform for the further study of microgrid.)
- 2021-03-19 22:29:18下载
- 积分:1
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GA
说明: matlab 遗传算法求解tsp,有详细的交叉,变异说明,适合初学者(matlab genetic algorithm tsp, detailed crossover, mutation description, suitable for beginners)
- 2011-08-13 12:04:14下载
- 积分:1
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PWVD
时频分析中重要的wignal分布的离散化过程,并附带时频图。(Time-frequency analysis the important wignal distribution discrete process, along with the time-frequency diagram.)
- 2020-12-05 09:59:27下载
- 积分:1
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Contingency-NewtonRaphson
good for power analysis
- 2015-03-14 13:43:42下载
- 积分:1
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5l
A commonly used control device called a programmable logic controller, or a PLC, is used to read a set of digital and analog inputs, apply a set of logic statements, and generate a set of analog and digital outputs. Using the example in the previous paragraph, the room temperature would be an input to the PLC. The logical statements would compare the setpoint to the input temperature and determine whether more or less heating was necessary to keep the temperature constant. A PLC output would then either open or close the hot water valve, an incremental amount, depending on whether more or less hot water was needed. Larger more complex systems can be controlled by a Distributed Control System (DCS) or SCADA system.
- 2013-08-16 16:54:36下载
- 积分:1
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S-Function
matlab的s函数的编写教程,十分详细(matlab s function to write the tutorial, very detailed)
- 2012-05-21 15:10:55下载
- 积分:1
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labview
基于labview时频分析,在线故障诊断(for labview)
- 2021-01-18 15:18:45下载
- 积分:1