数字处理及显示技术专辑 106册 913M数字图像处理(K.R.Castkeman) 583页 26.1M.pdf
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上传时间： 2014-05-05
上传用户：时代将军
超声,红外,激光,无线,通讯相关专辑 183册 1.48GITU-R BT.656数据协议 15页 0.4M.pdf
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上传时间： 2014-05-05
上传用户：时代将军
可以将图像中r,g,b三个分量分别提取出来，并显示
上传时间： 2015-06-27
上传用户：lyx1998
matlab有限元网格划分程序 DistMesh is a simple MATLAB code for generation of unstructured triangular and tetrahedral meshes. It was developed by Per-Olof Persson (now at UC Berkeley) and Gilbert Strang in the Department of Mathematics at MIT. A detailed description of the program is provided in our SIAM Review paper, see documentation below. One reason that the code is short and simple is that the geometries are specified by Signed Distance Functions. These give the shortest distance from any point in space to the boundary of the domain. The sign is negative inside the region and positive outside. A simple example is the unit circle in 2-D, which has the distance function d=r-1, where r is the distance from the origin. For more complicated geometries the distance function can be computed by interpolation between values on a grid, a common representation for level set methods. For the actual mesh generation, DistMesh uses the Delaunay triangulation routine in MATLAB and tries to optimize the node locations by a force-based smoothing procedure. The topology is regularly updated by Delaunay. The boundary points are only allowed to move tangentially to the boundary by projections using the distance function. This iterative procedure typically results in very well-shaped meshes. Our aim with this code is simplicity, so that everyone can understand the code and modify it according to their needs. The code is not entirely robust (that is, it might not terminate and return a well-shaped mesh), and it is relatively slow. However, our current research shows that these issues can be resolved in an optimized C++ code, and we believe our simple MATLAB code is important for demonstration of the underlying principles. To use the code, simply download it from below and run it from MATLAB. For a quick demonstration, type "meshdemo2d" or "meshdemond". For more details see the documentation.
标签： matlab有限元网格划分程序
上传时间： 2015-08-12
上传用户：凛风拂衣袖
R语言经典入门
标签： R语言经典入门.pdf
上传时间： 2015-12-21
上传用户：wcj1345
R&S自动测试设备操作指导书A0
标签： R&S自动测试设备操作指导书A0
上传时间： 2016-02-29
上传用户：UlikeKK
The goal of the present document is to give a starting point for people newly interested in R. I chose to emphasize on the understanding of how R works, with the aim of a beginner, rather than expert use.
标签： R
上传时间： 2016-04-08
上传用户：mrchen...
用于学习R软件的，主要涉及统计中的一些基本方法
上传时间： 2016-05-08
上传用户：wql13090
一本强大的关于R语言实例分析的应用书籍
标签： R语言
上传时间： 2016-07-08
上传用户：VanRoseham
数值型随机森林R代码，供数值型数据进行决策树构建
上传时间： 2016-10-29
上传用户：友禾步渴
