License plate recognition system based on opencv template matching

This paper introduces a license plate recognition system which uses opencv open source library for license plate location, projection method for license plate character segmentation, and template matching method for character recognition. ##1. Use opencv for graphics processing. After finding a vehicle ...

Posted on Fri, 21 Feb 2020 07:29:54 -0500 by Highland3r

The Science of Scientific Writing

The science of scientific writing The authors are George D. Gopen and Judith A. Swan, originally published in the American Journal of scientists. 0 Introduction The key point of paragraphs (1) - (2) is that in order to improve writing, we must understand how readers read, rather than the author's en ...

Posted on Fri, 21 Feb 2020 07:05:01 -0500 by jeffgman

2, python parsing XML documents

1. What is an XML document? Extensible Markup Language,Standard General Markup Language A subset of, or XML for short. It is used to mark electronic documents to make them structural Markup Language.  [1]  In an electronic computer, a marker means Computer Information symbols that can be understoo ...

Posted on Fri, 21 Feb 2020 05:35:17 -0500 by Spekta

3D reconstruction: PCL Point Cloud Filtering

The reconstructed point cloud obtained by binocular stereo vision usually has more noise points. The main reason for this phenomenon is that the error of algorithm matching point leads to the error of disparity calculation. SGBM algorithm is good in traditional binocular stereo vision, but it still has ...

Posted on Fri, 21 Feb 2020 03:56:34 -0500 by didgydont

Using Python to create a spy program

Knowledge points This time we use python to create a spyware program Many knowledge points will be used in the program, roughly divided into four parts win32API can be viewed on MSDN here Python foundation focuses on the use of cpytes library. Please click here Fundamentals of C language   Hook The basic principle of the program is to record ...

Posted on Fri, 21 Feb 2020 03:00:24 -0500 by riddhi

Basic usage of Numpy Scientific Computing Library

NumPy Is the basic package of scientific computing in Python. It is a python library that provides multidimensional array objects, various derived objects (such as mask array and matrix), and various routines for array quick operation, including mathematics, logic, shape operation, sorting, selection, ...

Posted on Fri, 21 Feb 2020 02:16:58 -0500 by dnszero

ECharts mapping - (national epidemic simulation example)

National epidemic simulation example Before drawing, we need to know some basic components of Echarts: 1.geo geo is the geographic coordinate system component of the ECharts chart. The geographic coordinate system component in ECharts can be used for map drawing. It supports the drawing of scatter map ...

Posted on Fri, 21 Feb 2020 01:00:00 -0500 by Tonisius

Detailed analysis of MySQL execution plan and cost model

background In order to facilitate subsequent communication, a ** Stack-Java Technology Exchange Group ** was created in the morning of 2020,213, which also facilitates active participation by scanning QR codes. If the QR code is out of date, you can add the mini-signal (lastpass4u) of the stack culture-assistant and let him pull you into the g ...

Posted on Thu, 20 Feb 2020 20:16:45 -0500 by curlious

Shortest and longest LIS (difficulty 3 stars)

Original question link: https://codeforces.com/contest/1304/problem/D Title Description Gildong recently studied LIS (Longest Increasing Subsequence, Reference link )The problem. Now Gildong has come up with a problem: given a string of length n-1 composed of "< < and" > > " ...

Posted on Thu, 20 Feb 2020 05:35:44 -0500 by danieliser

When the length of JDK1.8 HashMap link list is greater than 8, it will be converted to red black tree

——Light Rose appears frequently, pure aloe blossoms cautiously. May the motherland overcome the epidemic as soon as possible! Go China! Come on, Wuhan! 1. JDK1.8 HashMap source code /** * Implements Map.put and related methods * * @param hash hash for key * @param ke ...

Posted on Thu, 20 Feb 2020 04:44:02 -0500 by zachatk1