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image-compression-with-PCA
说明: 对400幅灰度图像用分块PCA的方法进行压缩,进行通信时只用传输主元和特征向量。其中,pcaxiefangcha.m用于图像压缩,imresume.m用于图像恢复和部分图像的显示,chaweight.m用于绘制特征值比重-主元个数关系图,crdraw.m用于绘制压缩比-主元个数关系图,psnrdraw.m用于绘制总误差PSNR-主元个数关系图,psnrlocation.m用于绘制单幅图像误差PSNR分布图。(On the 400 block with a gray image compression method of PCA, to communicate only the main elements and characteristics of transfer vectors. Which, pcaxiefangcha.m for image compression, imresume.m parts of the image for image restoration and display, chaweight.m characteristic value for the draw weight- the main element number diagram, crdraw.m used to draw the compression ratio- the primary element number diagram, psnrdraw.m used to draw the total number of errors PSNR-principal component diagram, psnrlocation.m PSNR used to draw a single image error distribution.)
- 2011-04-06 21:37:21下载
- 积分:1
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LDPC
针对LDPC码在理论和实现两方面分别进行了较深的研究。深入了解了LDPC码编码方法、译码方法以及性能等知识,重点研究了用MATLAB如何构造奇偶校验矩阵、如何编码和如何解码的算法,而且实现了在相同码率、信噪比下LDPC码性能与卷积码性能的对比。(LDPC codes for both theory and implementation were carried out deeper study. In-depth understanding of the LDPC coding method, decoding method and performance of such knowledge, focuses on how to use MATLAB parity check matrix structure, how to encode and decode algorithms how, but also achieved at the same rate, SNR LDPC codes Comparative performance and convolution code performance.)
- 2014-11-23 08:31:49下载
- 积分:1
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masplinehh
用途:三阶样条插值(一阶导数边界条件)
格式:m=maspline(x,y,dy0,dyn,xx), x为节点向量,y为数据,
dy0,dyn为左右两端点的一阶导数如果xx缺省,则输出各节点的
的一阶导数值,,m为xx的三阶样条插值(Uses: third-order spline interpolation (first order derivative boundary condition) format: m = maspline (x, y, dy0, dyn, xx), x is the node vector, y for the data, dy0, dyn left and right ends of points a derivative, if xx default, then the output of each node of the of a first derivative values,, m for the third-order spline interpolation xx)
- 2009-12-16 16:38:40下载
- 积分:1
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PSO
particul swarm optimization matlab code
- 2013-08-15 12:53:41下载
- 积分:1
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sphereRCS
说明: 计算金属球体RCS的MATLAB程序.
就是教科书上金属球体RCS曲线计算的MATLAB程序.(RCS calculation of the metal sphere of MATLAB procedures. Is textbook metal sphere RCS curve calculated MATLAB program.)
- 2008-11-17 11:29:22下载
- 积分:1
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CH3-Source-Seeking
《Extremum seeking control and
applications》
第三章实例代码(Extremum seeking control and
applications
code of the third chapter )
- 2014-11-03 13:05:57下载
- 积分:1
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feixianxing1
四阶龙哥库塔法 实现非线性控制 及其matlab实现(Fourth-order Long Ge Kuta method for nonlinear control and realize matlab)
- 2013-05-09 15:11:57下载
- 积分:1
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erlang
Matlab实现:erlang 公式,并且几种模式下的实现(erlangB and erlangC/engset model
matlab)
- 2009-02-06 04:41:51下载
- 积分:1
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hist_matching
Histogram matching is used for contrast stretching in the image.
- 2010-10-30 00:49:17下载
- 积分:1
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FFT
傅立叶变化的Matlab实现,对于学习FFT非常有帮助。FFT文件夹内有多个程序。(Matlab Fourier realize change, for learning FFT very helpful. FFT folder has a number of procedures.)
- 2008-07-09 17:02:27下载
- 积分:1