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[Opencv-python] Image feature extraction and description in OpenCV part V (i)

, lots of glass in the building", and you can search for the same area in other images. Basically, you are describing features. Similarly, the computer must describe the area around the feature so that it can find the same feature in other images. We refer to this description as a feature description. Once you have a description of the features, you can find the same feature in all the images and you can do whatever you want to do.In this chapter we are going to use the various algorithms in

Opencv learning notes () -- use opencv to recognize human faces and gender recognition contrib

The story of face recognition can't be told. Let's leave the investigation to everyone. Here we are talking about face recognition with opencv. Because it is real face recognition and not funny entertainment, the database must be powerful. We recommend a website http://www.face-rec.org/databases /. Here is an overview of the most comprehensive face database. I hope you can find the desired face Library (PS: I need a 3D face library, but I don't know w

OpenCV Study Notes (62)--"OpenCV computer Version with Python" Reading summary

Now Python fire Ah, each OPENCV comes with the ML module let me call the pit Dad, simply ready to use Python to do OPENCV later machine learning algorithm processing. So hurriedly picked up the book to read.Suitable for OpenCV and Python have a certain foundation .... Since all are more familiar with these two things, I read before the more concerned about only a

Matlab and C ++ mixed programming (dependent on OpenCV), and Matlab OpenCV

Matlab and C ++ mixed programming (dependent on OpenCV), and Matlab OpenCVMatlab and C ++ hybrid programming is actually to compile C ++ code into executable files and function interfaces that Matlab supports calling through Matlab's Mex tool. In this way, you can use the functions that have been compiled in Matlab, even though this function is written in C ++. Communication without borders is achieved, and there is no one who is unified, and there is

Use opencv official file configuration, static compilation, and run OpenCV-2.3.x/2.4.x instance

Copyright Notice: All original articles in this blog can be used for personal, educational, or non-commercial purposes, however, it is important to ensure the integrity of the article and to indicate the original author, source and this statement in the form of a hyperlink without any modification. Blog address: Http://blog.csdn.net/shuxiao9058 Original Author: Ji ya When we need to test the program or send the program to other colleagues or students to let them run to test the program performa

Androidstudio OPENCV configuration without installing OpenCV Manager

Follow these steps to configure and test, no problem. Download OpenCV SDK for Android, unzip (my decompression address is F:\OPENCV-ANDROID-SDK) 1) New Project project, named Opencvtest (name Random)2) Minimum SDK selection API 19:android 4.4 (KitKat)3) Select Empty Activity Android Studio Menu-->file-->new-->import Module1) Select F:\opencv-android-sdk/s

[Ubuntu + opencv] matrix creation and initialization of opencv-learning notes [4]

. CvcreatedataAllocates array data // allocate memory space for the ArrayVoid cvcreatedata (cvarr * ARR );Arr array header // arr is the array Header The function allocates image, matrix or multi-dimen1_array data. Note that in the caseOf Matrix types opencv allocation functions are used and in the case of iplimage they are usedUnless CV turn on IPL compatibility was called. In the latter case IPL functions are usedTo allocate the data. // This funct

OPENCV Learning Note 1 Configuring OPENCV

OpenCV is a powerful image and video processing library, code open source, I mainly think that MFC inside the read image and output image is too troublesome, so directly with the OPENCV inside the library function to read, output image.I'm using a opencv2.4.9+vs2010.Opencv2.4.9:hereInstallation Guide: HereIf you want to see the source code in VS, you can refer to this:"

OpenCV from getting started to giving up (1) virtual machine ubuntu16.04+ python installation OpenCV

Download the Linux version of the OPENCV compression pack on the OPENCV official website (http://opencv.org/). Then select the OpenCV download folder, enter in the Terminal: CD (compressed package address); Unzip the downloaded fileUnzip Opencv-3.2.0.zipEnter the opencv-3.2.

Ros-kinetic <使用cv_bridge进行opencv和ros图像处理></使用cv_bridge进行opencv和ros图像处理>

1. Environmental Preparedness Ubuntu16.04 ros-kinetic opencv3.3.1 VIDEO-STREAM-OPENCV a USB camera VIDEO-STREAM-OPENCV is a USB camera driver, for the introduction of it, please see GITHUB:HTTPS://GITHUB.COM/ROS-DRIVERS/VIDEO_STREAM_OPENCV Install VIDEO-STREAM-OPENCV CD ~/catkin_ws/src/ git clone https://github.com/ros-drivers/video_stream_opencv.git CD ~/catk

"OpenCV &amp; CUDA" OpenCV and CUDA combined programming

One, using the GPU module provided in the OPENCV At present, many GPU functions have been provided in OpenCV, and the GPU modules provided by OPENCV can be used to accelerate most image processing. Basic use method, please refer to: http://www.cnblogs.com/dwdxdy/p/3244508.html The advantage of this method is simple, using Gpumat to manage the data transfer betwee

Learning OpenCV---() opencv Hough Transform: Hough line transformation, Hough Circle transformation

Tag: ble init IDT process ogr expression direction requires harIn This article, we will study the knowledge points related to Hough transform in OpenCV, and understand the use of HOUGHLINES,HOUGHLINESP functions to realize the OPENCV transformation in the The method of using the Houghcircles function of the Huffman Circle transform is realized. Let's have a taste of it. One of the sample programs runs:First

OpenCV learning notes () -- OpenCV Computer Version with Python reading abstract, pythonopencv

OpenCV learning notes () -- OpenCV Computer Version with Python reading abstract, pythonopencv Now, python is quite popular. Every time the ml module of OpenCV comes, I am calling myself, so I simply want to use python for processing machine learning algorithms later on OpenCV. So I quickly picked up the book and read

[OpenCV] video reading and some simple image processing, opencv reading

[OpenCV] video reading and some simple image processing, opencv reading1. Preface As a computer image processing tool, openCV began to show some irreplaceable advantages due to free disclosure, copyright, and so on (it has been shown for a long time ). Well, I have been working with MATLAB in my graduate school. I always feel like debugging, verification, or MATL

OpenCV 2.4.9 Study Notes (2)--OPENCV memory Automatic Management

OPENCV Automatic memory managementThe current version of OPENCV is automatically processing all of its own memory, although that is not very rigorous. OpenCV introduced a new C + + interface in version 2.0, using automatic memory management to give a new way to solve the problem. With this approach, developers don't have to tangle with managing memory, and your c

OpenCV Learning Series (0) Mac OpenCV + Xcode environment setup

Tags: writing 10.10 demo installation. NET Development Practices Type code# OPENCV Learning Series (0) Mac OpenCV + Xcode environment setup[-= blog Directory =-] 1-Learning Goals 1.1-Introduction to this chapter 1.2-Practice Content 1.3-related instructions 2-Learning process 2.1-homebrew Installation 2.2-Install CMake with homebrew 2.3-Source

[Opencv Notes] use vs2012 and opencv2.4.9 to build and configure the opencv Development Environment

MS Visual C ++ is used to create the opencv project. Because different vs Versions differ in the configuration process, the configuration process is summarized to facilitate use by yourself and other friends. 1. Software preparation Install visual studio2012 and opencv2.4.9 Here we will not describe the installation of software and the setting of environment variables. The settings in other similar articles are almost similar. This article focuses on

"OpenCV learning" using OPENCV and two cameras to achieve dual target and ranging

Directory Directory Description Binocular ranging code in previous articles Binocular visual code with better results Implementation of binocular visual code with better effect 1 Calibration Process 2 ranging process Some problems and how to solve them To say. 1 descriptionI've written an article about the realization of binocular depth of field and distance measurement based on OpenCV compl

OPENCV First Station: Configuring the OPENCV Environment (2015-12-12)

Today's Forum application book "OpenCV Computer Vision programming strategy (China Work Letter publishing house)" arrived, ready to study machine vision.Installed in the evening vc2008 and OpenCV the latest version of 3.0.0, tried a variety of configurations are error prompts "error lnk2019:unresolved external symbol", the final suspicion of the version, downloaded 2.3.1 version tried to run the normal, rea

OpenCV Arm porting (cross-compiling OpenCV)

 part of the content is from the following 2 articles:http://www.cnblogs.com/emouse/archive/2013/04/01/2993842.htmlhttp://blog.csdn.net/satanhbl/article/details/25734887ARM-OE-LINUX-GNUEABI-GCC compiling opencv3.1.0Installation of CMakeOpenCV 2.2 will require CMake to generate the makefile file, so you will need to install CMake first.Installing CMake under Ubuntu is relatively simple,Apt-get Install CMakeIf you feel that your own version does not meet the requirements, you can download the in

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