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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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Fouriertransform
傅里叶变换可谓是应用于工程科学等各个领域,本文本内容少可以很好的匹配傅里叶变换各种问题(Fourier transform can be described as applied to engineering science and other fields, the contents of this article can be a good match fewer problems Fourier Transform)
- 2011-01-07 15:17:04下载
- 积分:1
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s_fun_CVT
主要是利用恒压方法实现光伏阵列的最大功率点跟踪(Method is to use constant pressure to achieve the main solar array maximum power point tracking)
- 2011-05-24 15:49:57下载
- 积分:1
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MadgwickAHRS
在matlab环境中将陀螺仪加速度计以及磁传感器数据转为四元数的脚本。(The script will change accelerometers and gyroscopes magnetic sensor data into a quaternion In the matlab environment.)
- 2013-10-01 16:55:01下载
- 积分:1
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zuisuxiajiang
最速下降法,优化算法的一种,具有二次收敛性,若目标函数为二次正定函数,经有限步可达到极小点(Steepest descent method, an algorithm with quadratic convergence, if the objective function is quadratic positive definite function can be achieved by the finite step minima)
- 2010-12-26 22:11:32下载
- 积分:1
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suzuki_fading
suzuki模型matlab仿真,给大家参考参考(suzuki model matlab simulation, for everyone to refer to the reference)
- 2011-01-20 16:38:57下载
- 积分:1
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wKA
ωKA是实现SAR图像成像的一种方法,该程序实现了ωKA的近似和精确两种成像方式,仿真参数参考《合成孔径雷达成像——算法与实现》,利用Stolt插值实现了目标成像,最后在方位向和距离向进行切片,观察成像结果。(ωKA is one of the point target imaging algorithms of SAR . This program implements both exact and approximate ways of imaging. Simulation parameters refer to the book Synthetic Aperture Radar imaging- Algorithms and Implementation .)
- 2021-03-12 15:49:25下载
- 积分:1
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statisticalSIgLab
Statistical Signal Processing Lab
- 2012-01-11 06:52:59下载
- 积分:1
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BARLISAN_GROUP2_ACT1
This is a code for admittance matrix formulation. Given that its inputs are bus, to bus, impedance, susceptance and tap transformer.
- 2021-03-25 08:39:14下载
- 积分:1
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BVAR_Gibbs
贝叶斯分析,比较复杂的自回归分析。VAR模型,注意比AR要先进的多!(Bayesian estimation, prediction and impulse response analysis in VAR models using the Gibbs sampler.)
- 2021-04-07 11:49:01下载
- 积分:1