QA Official

OpenCV Learning Notes-Introduction to OpenCV 3 Programming reading notes

https://qaofficial.com/post/2019/05/13/71779-opencv-learning-notes-introduction-to-opencv-3-programming-reading-notes.html 2019-05-13
This reading notes mainly records reading notes who I read "Introduction to OpenCV3 Programming". The book written by Mao Xingyun is very suitable for beginners who come into contact with OpenCV. Although the theoretical content is a brief summary, it can still be roughly understood..The best part of this book is the code that provides a large number of complete examples, which is quite helpful for beginners to get started.

opencv Computer Vision Learning Note 1

https://qaofficial.com/post/2019/05/13/71767-opencv-computer-vision-learning-note-1.html 2019-05-13
Chapter II Handling File Cameras and Graphical User Interface 1 basic i/o scripts read and write image files The sample code is as follows: #!/usr/bin/env python # -*- coding: utf-8 -*- # @Time : 2016/11/27 12:22 # @Author : Retacn # @Site : 读/写图像文件 # @File : imageReadWrite.py # @Software: PyCharm import cv2 import numpy as np from matplotlib import pyplot as plt #

opencv Human Face Detection

https://qaofficial.com/post/2019/05/13/71918-opencv-human-face-detection.html 2019-05-13
1, Face and Eye Detection Based on PicturesPrinciple: OpenCV uses Haar features of samples for classifier training to obtain cascade boosted classifier, which can detect the eyes (also supported human face, mouth, nose and body) in the picture. 2. I used vs2015+opencv310 (look at opencv3.4.1, the face detection classifier is not updated). //#include "stdafx.h" #include "opencv2/objdetect/objdetect.hpp" #include "opencv2/highgui/highgui.hpp" #include "opencv2/imgproc/imgproc.hpp" #include <cctype> #include <iostream> #include <iterator> #include <stdio.h> using namespace

opencv example

https://qaofficial.com/post/2019/05/13/71911-opencv-example.html 2019-05-13
Mat is the interface matrix class of OpenCV and C++, ImlImage is the structure of the interface of OpenCV and c.IplImage to Mat// uses Mat's constructor: MAT:: MAT (CONST IplImage * IMG, BOOL COPYDATA = FALSE);CopyData is false by default IplImage * srcimg = cvloadimage ("lena.jpg");//note: the following three effects are consistent, all of which are shallow copy Mat M(srcImg);Mat M(srcImg, false);Mat M = srcImg;//note: when the parameter copyData is

vs2010 c# EmguCV environment construction and configuration

https://qaofficial.com/post/2019/05/13/71830-vs2010-c#-emgucv-environment-construction-and-configuration.html 2019-05-13
Recently, a project was made under the C# platform. Template matching is required. The original template matching was made under C++OpenCV. Therefore, EmguCV is intended to be used for this function. 1. Download Address: https://sourceforge.net/projects/emgucv/files/emgucv/3.1.0/ I downloaded: libemgucv-windesktop-3.1.0.2282.exe originally downloaded the latest version of libemgucv-windesktop-3.1.0.2504-r16.12.exe, but found an exception "popup" Emgu.CV.CvInvoke "threw an exception."Can't solve, according to the way can be found on the Internet can't solve, don't feel like a dynamic library connection problem, like cvextern.

&amp;quot;Unable to load DLL&amp;quot; oramts.dll &amp;quot;:The specified module cannot be found.(exception from HRESULT:0x8007007E). &amp;quot;-solution

https://qaofficial.com/post/2019/05/13/71845-ampquotunable-to-load-dllampquot-oramts.dll-ampquotthe-specified-module-cannot-be-found.exception-from-hresult0x8007007e.-ampquot-solution.html 2019-05-13
Oramts.dll File Publicly Registers Public API in Transactions Initiated by Microsoft Distributed Transaction Coordinator (MSDTC) Involved in Oracle Connections.Oracle client assemblies call these apis when running in a transaction environment.Earlier versions of the System.Data.OracleClient assembly did not support distributed transactions.Therefore, this dependency does not exist before system.data.oracleclient assembly version 1.1.Oracle Client assemblies use Oramts.dll files when you perform distributed transaction activities.Oracle client assemblies are not loaded when you try to perform non-transacted activities or when you use local transactions.

AdaBoost-based Face Detection with Source Code

https://qaofficial.com/post/2019/05/13/71882-adaboost-based-face-detection-with-source-code.html 2019-05-13
Need complete source code contact me QQ [email protected] Face DetectionI. Purpose of ExperimentMaster the basic method of face detection using AdaBoost and cascade classifiers, and deepen the understanding of basic concepts through experiments. 2 Experimental PrincipleFace detection refers to searching any given image with a certain strategy to determine whether it contains a face, and if so, returning the position, size and posture of the face.Adaboost's core idea is to train the classifier to obtain the detection purpose.

DLL &amp;quot;oramts.dll&amp;quot; could not be loaded: the specified module could not be found

https://qaofficial.com/post/2019/05/13/71855-dll-ampquotoramts.dllampquot-could-not-be-loaded-the-specified-module-could-not-be-found.html 2019-05-13
Today, I tried to use System. Transactions. Transactional Scope to manage transactions, because I saw the official sample: Microsoft sample code for distributed transactions. I am very happy that I can support distributed transactions, but after seeing one sentence, it became cool. The original words are as follows: “由 System.Transactions 命名空间中的类提供的基础结构通过支持在

Dark Horse Programmer-Regular Expressions Commonly Used in Java

https://qaofficial.com/post/2019/05/13/71833-dark-horse-programmer-regular-expressions-commonly-used-in-java.html 2019-05-13
--< a href = "http://www.itheima.com" target = "blank" > Android training < /a >, < a href = "http://www.itheima.com" target = "blank" > Java training < /a >, looking forward to communicating with you!---------- Common Regular Expressions (1) "\ d+$"//Non-negative integer (positive integer+0) (2) "[0-9] * [1-9] [0-9] * $"//positive integer (3) "((-\ d+) | (0+)) $"//Non-positive integer (negative integer+0) (4) "-[0-9] * [1-9] [0-9] * $"//negative integer

Explanation of Face Detection in OpenCV

https://qaofficial.com/post/2019/05/13/71901-explanation-of-face-detection-in-opencv.html 2019-05-13
OpenCV for Basic Learning Notes (1): Analysis of facedetect Examples in OpenCV