## 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**