Computational Statistics-Chap4 Generation of Random Variables General Technology

Original Link: http://www.cnblogs.com/pegasus/archive/2010/12/01/1892648.html Many computational statistical methods need to generate random variables from known probability distributions, which is also the core of Monte Carlo methods f ...

Posted on Tue, 13 Aug 2019 12:53:08 -0700 by semlabs

Image Processing-Linear Filtering-2 Image Differentiation (1,2 Derivatives and Laplace Operators)

Original Link: http://www.cnblogs.com/pegasus/archive/2011/05/20/2051780.html More complex filter operators generally start with a Gaussian filter to smooth, and then compute their first and second derivatives.Because they filter out hi ...

Posted on Tue, 13 Aug 2019 12:17:39 -0700 by m00ch0

Image Enhancement (1-Gray Level Transform) - Intensive MATLAB Source Code

Starting with three questions: First question: What is the enhancement of digital images? Personal understanding is that by smoothing and denoising the image, changing the gray level or enhancing the edge, we can show some image features we want more clearly. This is image enhancement, which focuse ...

Posted on Wed, 07 Aug 2019 06:15:02 -0700 by karlitosphere

Instructions on the Use of armadillo Matrix Library in C++

stay http://blog.csdn.net/piaoxuezhong/article/details/58055709 The use of eigen matrix library is introduced in this blog. Here we introduce another matrix library: armadillo.~ Armadillo: A Substitute for Matlab in C++ Armadillo is one of the widely used C++ matrix operation libraries at present. Many of the matrix operation functions of M ...

Posted on Thu, 04 Jul 2019 11:06:59 -0700 by trukfixer

Using Douban Short Comment Data to Generate Word Cloud

In the previous article, we got the short comment content of bean Crep crawling and summarized it in a file. However, the data that has not been used is meaningless. As mentioned in the previous article, there is a practical record of the production of word clouds in a Weixin tweet, which is ready to be tested. Thinking analysis read file Read ...

Posted on Sun, 02 Jun 2019 16:43:10 -0700 by MDanz

Centrifugal pump hydraulic design —— impeller design ——7 blade axle section

1. Design and calculation of impeller 1.14 as axle section of blade In fact, it is to project the intersection of the vertical lines and streamlines on the grid to the projection map of the impeller's axle surface, and to connect the three intersections on each vertical line smoothly into a curve, that is, the axle section o ...

Posted on Tue, 14 May 2019 17:51:41 -0700 by wilhud

Gray Range Matrix-GLRLM for Feature Extraction in Matlab

Gray Range Matrix for Feature Extraction-GLRLM Gray Range Matrix-GLRLM for Feature Extraction in Matlab Gray Range Matrix-GLRLM for Feature Extraction in Matlab A few days ago, I participated in the Mathematical Modeling Competition and found that there are few matlab reference materials for feature extraction in the whole ...

Posted on Mon, 29 Apr 2019 07:30:36 -0700 by fred12ned

NumPy Learning Notes

NumPy: NumPy is a powerful third-party library (which needs to be installed by itself), mainly used for computing multi-dimensional arrays. It provides a large number of library functions and operations that can help programmers perform numerical calculations more easily. 2. It can be used with two other third-party libraries, SciPy and Mat ...

Posted on Mon, 22 Apr 2019 11:24:34 -0700 by FrozNic

R Series: Word segmentation, word deactivation, word cloud painting (word cloud shape can be customized)

Note: Don't ask me why I wrote so fast. It was written in 16 years. Advantages of R: Free, friendly interface (without matlab friendliness, MATLAB in my mind is the representative of minimalism in statistical software), small (compressed package is tens of M, compressed package of MATLAB.R2009b is 1.46G), many (really many, friends often upload ...

Posted on Fri, 05 Apr 2019 23:30:30 -0700 by diondev

Digital Image Processing Experiment (16): PROJECT 06-03, Color Image Enhancement by Histogram Processing

Experiments require: Objective: To know how to implement image enhancement for color images by histogram processing. Note that the definition of histogram for color images differs from that of histogram for gray images. Main requirements: Ability of programming with C, C++, or Matlab. Instruction manual: (a) Downloa ...

Posted on Wed, 13 Feb 2019 11:33:18 -0800 by Mystis