opencv scalar

Original: http://blog.csdn.net/yang_xian521/article/details/7107786I remember the beginning of contact with OPENCV is because an algorithm inside a 2-dimensional dynamic array, then look at the core this part is also a cursory, with the increase in use, the structure of the mat more and more like, also feel the need to warm so that the new, so this time to see the mat.The biggest advantage of mat and STL very similar, are the memory of dynamic managem

A mainstream face detection method is like Haar + embedding sting, which is also used in opencv. This method can be applied to the detection of rigid objects, provided that the cascade classifier (for example, the Haar-like feature) is trained. Once the training data is completed, the cascadeclassifier class in opencv is called directly, you can use several simple member functions to complete the detection

OpenCV learning notes (1) -- OpenCV Development Environment Configuration Abstract: Due to the recent popularity of AR (Augmented Reality), various AR-based applications and games are gradually oriented to the public. The two most important technologies in AR are tracking, recognition, and enhanced rendering, tracking and recognition is implemented through the open-source computer vision library

[Opencv Article 1] install opencv This article mainly introduces how to download the opencv installer and how to install and configure opencv under vs2008. Finally, it introduces a simple example of using opencv. Opencv Getting St

Opencv achieves the combination of two images, and opencv implements the imageIntroduction This article uses ROI and addWeighted on opencv to mix two images.ROI First, let's take a look at the implementation of ROI. In "Draw box _ opencv (1) () where the image needs to be located", we have already discussed the use of

[OpenCV Article 1] install OpenCV This article describes how to download the OpenCV installer and how to install and configure OpenCV under VS2008. At last, it also describes a simple example of using OpenCV. OpenCV Getting Starte

"OpenCV First" installation OpenCVThis article mainly describes how to download the OPENCV installation program, how to install the configuration under VS2008 OpenCV, the article finally introduced a simple sample using OPENCV.the O Pencv Getting Started Guide series article address: http://blog.csdn.net/morewindows/article/category/1291764A Download of OpenCVTo

Learning the learning notes series of OpenCV-Environment configuration 2, opencv learning notes To learn OpenCV well, you must first know how to configure the environment. Take your own configuration environment as an example. The steps are as follows. Step 1 download and decompress the OpenCV source code Although many

_ • Cv_8u-8-bit unsigned integers (0 .. 255) • Cv_8s-8-bit signed integers (-128 .. 127) • Cv_16u-16-bit unsigned integers (0 .. 65535) • Cv_16s-16-bit signed integers (-32768 .. 32767) • Cv_32s-32-bit signed integers (-2147483648 .. 2147483647) • Cv_32f-32-bit parameter oating-point numbers (-flt_max..flt_max, INF, Nan) • Cv_64f-64-bit parameter oating-point numbers (-dbl_max..dbl_max, INF, Nan) Note that many opencv functions support only

Today finally the QT + OPENCV configuration succeeded, there are some twists in the middle, recorded here.vs2013 + OpenCV's method was previously documented, but this time it's not quite the same, we started with this article configuring proA tutorial on OPENCV development in QT5However, the result is not, the study found that we use MinGW is not vs, this method is suitable vs compiler (for reference: Win7

One, Ubuntu installation Ubuntu is a Linux distribution, I think people who know about Linux should know that we directly to the official online download is good, is free to use. Website download link I'm using the newest ubuntu14.04 here. Because I am using the Mac system, directly with the VMware fusion7 virtual machine will download a good mirror CD-ROM installation can be, and the real system installation, Ubuntu installation process is very user-friendly, all the way to set the past. Secon

This article mainly introduces how to use Python and OpenCV libraries to convert URLs into OpenCV formats. at the same time, NumPy and urllib are used. For more information, see Today's blog is directly from my own tool library. In the past few months, some PyImageSearch readers emailed me: "How to get the image pointed to by the URL and convert it to OpenCV f

This paper describes how to build a OPENCV environment under the MAC system. Software Requirements: Mac OS (Mine is 10.11.6), Xcode (My is 8.1), OpenCV (not recommended to the official website to download first, the specific follow-up will be explained). 1. Installation HomebrewBrew official website Installation method: Open Mac Terminal, enter the following command: Ruby-e "$ (curl-fssl htt

turn from: http://blog.sciencenet.cn/home.php? Collcc=3456986939collcc=3456885714mod=spaceuid=702148do=blogquickforward=1id= 657754%20%e5%9c%a8mac%e4%b8%8b%e4%bd%bf%e7%94%a8opencv%ef%bc%8c%20%e5%9c%a8xcode%e4%b8%8b%e4%bd%bf%e7%94% A8OPENCVPenis a small Mac white, recently started a MacBook Air, has no time to build a programming environment, the two days finally out of time to start using the Mac system. The current programming tools mainly for Eclipse and Xcode, I first chose to use Xcode, beca

The OPENCV provides a Python interface with key features such as: Provides a python interface that is very similar to the latest C + + interface in OpenCV 2.x, and includes C interfaces not included in C + + Provides bindings for all major components in the OpenCV 2.x: Cxcore (almost complete), Cxflann (complete), Cv (complete), Cvaux (c + + part alm

Today's blog is a direct source of my own personal tool function library. In the past few months, some Pyimagesearch readers emailed me: "How to get a picture that the URL points to and convert it to OPENCV format (without having to write it to disk and then read back)". In this article I will show you how to implement this function. In addition, we will also see how to use Scikit-image to download an image from a URL. Of course the road ahead will al

Today's blog is directly derived from my own personal tool library. Over the past few months, some pyimagesearch readers have emailed me: "How do I get the picture that the URL points to and convert it to the OPENCV format without having to write it to disk and then read back?" In this article I will show you how to implement this function. Additional, we will also see how to use Scikit-image to download an image from the URL. Of course there will b

This article mainly describes how to configure OPENCV with vs2012 and then modify the code for debugging OpenCV.1, Configuration OpenCV ProjectHere is the main introduction of how to compile the source code through VS2012, the specific steps can be consulted:"OpenCV Introductory Tutorial VII"

Opencv learning notes 4 and opencv learning notes 4 Generally, more advanced morphological transformations, such as open and closed operations, morphological gradient, "Top Hat", and "Black Hat", can be combined with common corrosion expansion techniques to achieve the desired effect. 1. open operation:First corrosion and then expansion, used to eliminate small objects, separation objects at slender points,

OpenCV 3.0 for Windows (: http://opencv.org/)In this test, the OPENCV installation directory: D:\Program FILES\OPENCVThe steps are as follows:1. First install the VS and Opencv,opencv installation is actually the official download EXE decompression of their own designated directory;2. Configure