I have tried today for five hours to install OpenCV and run a simple program to check that it works. I have not been able to do this despite looking at several tutorials and youtube video's. Could anyone tell me firstly if there is a difference between using cygwin or mingw? Why is it so hard to link the OpenCV libraries to netbeans. I love the IDE but will have to use Visual Studio if I cant get it working tomorrow. I have not been able to find a tutorial that references opencv2.4.6 which is the latest version and netbeans 7.4. For anyone interested the cygwin version I down loaded was 1.7.25. The main problem I am having is finding out how to correctly link the OpenCV headers etc to netbeans. If anyone has made a record of how to do this then sharing it would be great. Maybe I'm going wrong with the system variables I'm just not sure. As said any help or directions to up to date tutorials would be a great help. I love Netbeans and want to keep using it.
Thanks
I stumbled across this post while trying to set up OpenCV with Netbeans 7.4 on windows 7.
After finally getting everything to work I wrote this guide: OpenCV Netbeans C++ setup guide
I was able to get all the libraries linked. Also the clean/Build and run works for my C++ opencv 2.4.7 app from netbeans 7.4. Hope this can help anyone else who might want to use Netbeans for OpenCV coding.
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I'm new to coding so please forgive me if I've asked something too obvious.
I'm trying to set up Visual Studio Code (Version 1.46.1) on my Mac running Catalina (10.15.4), and I want to build my C++ code using gcc. I understand that Mac uses Clang and since I want to get into Competitive Coding, I'd prefer if gcc was used in VSC when I build my code. How do I do that?
I've tried following the documentation as well as various YouTube videos but I can't find anything given in a simple structure. Also, I wanted to make sure that I was using C++ 17 and not any other version.
Thanks in advance!
I am right now trying to solve the exercises of the free cs106b class, but cannot succeed to setup the needed libraries. I am new to C++ and not that experienced in XCode. I tried to to directly copy the library files I found on [Github] into my XCode project. I tried now for hours to get this package working but it seems they have to be installed in a special way.
I would be glad if somebody could give me some references on how to install a C++ library in XCode, especially the library given by Stanford.
P.S. with the "old" class I was given an .pkg installer, which I installed but did not seem to change anything.
I cannot help much with the XCode IDE. I have personally completed the course myself; however I used QT creator. The CS106B or CS106X official website (version 2016) provides very good documentation about how someone can go about and get started. http://web.stanford.edu/class/cs106b//handouts/qt-creator.html
A point to note: I used the SEE CS106B videos (the online cs106B) to complete the 2016 CS106X course. Please have a look around for the assignment files, in the official cs106B/cs106X website. In case you cannot find it, let me know, I can send it to you. I hope this helps.
I've got a C++ VS2013 solution with 3 projects, using OpenCV 2.4.10, easylogging++ and Dlib libraries. The problem is that our client is now migrating to Linux (Ubuntu Server). I've looked into Cygwin and MinGW and a few questions here on stackoverflow, but I'm still lost as to where I should start. I need this done as soon as possible, so the simpler solution would be best. I really appreciate any help you can provide.
I recommend using cmake build system on ubuntu. Using Opencv and easylogging on ubuntu out of the box could be a matter of minutes. dlib's website also mentions a simple cmake building steps that works on ubuntu.
After you get your libraries up and running, build your code and see if there are any system-dependent functions then google how to standardize them across systems. If your code is already standardized it should run right then and there.
You can then ask about any specific issues you meet on the way.
After big struggle with me and OpenCV I finally found this tutorial:
OpenCV with MinGW on Eclipse Tutorial (Scroll to "OpenCV - with CMake & MinGW")
I did everything as it has been written, but everytime I try to launch application it stops to respond just after few seconds and Windows alert communicate is shown. I noticed, that I can freely run standard C++ programs and include headfiles, but after single line of OpenCV code it fails to work properly. Also there is no information about error.
why don't you try the official tutorial http://docs.opencv.org/doc/tutorials/introduction/linux_eclipse/linux_eclipse.html#linux-eclipse-usage
this is the official site in opencv documentation which should get you started, it includes tutorials to get you started on lots of other platforms
http://docs.opencv.org/doc/tutorials/introduction/table_of_content_introduction/table_of_content_introduction.html#table-of-content-introduction
I also had a touch time getting OpenCV running but finally I found something that worked (I use Qt Creator as my IDE, not Eclipse, but maybe the problem and solution is similar).
At first I tried to download OpenCV 2.4.8, but I found it didn't include any MinGW binaries. I followed a forum on the web and installed CMake, but it seemed like OpenCV 2.4.8 didn't contain the CMake target for MinGW. After reading some more forums, I downloaded OpenCV 2.4.3 and was able to use CMake along with MinGW 4.8 (version that came with Qt 5.2) to build OpenCV. This got me to a point where I could compile my programs and attempt to run them. Some of the pure c commands even worked like cvLoadImage, but any of the c++ commands like imread or Mat::zeros(3,3, CV_8UC1) would cause a crash.
I tried building openCV a few more times with different options. Some sites suggested turning off SSE and SSE2 or building the debug version, but none of this worked for me.
Finally I ended up downloading TDM-GCC-32. I downloaded the on demand installer and made sure to get the dw2 version of the compiler (since a while ago I spent some time dealing with dw2 vs sjlj incompatibilities). Finally I rebuilt OpenCV with the TDM-GCC and also set TDM-GCC as the compiler in Qt Creator. This ended up being the fix.
I think there are some incompatibilities between the reference counting / allocation code used by the OpenCV Mat type and some versions of MinGW. I say this because all my crashes seemed to come from sections of code using the openCV matrix. (It seemed like it wasn't properly initialized or something). Switching to the TDM-GCC compiler fixed the problem.
I have seen other questions relating to this but I'm having trouble with the basics. My computer and programming knowledge is very limited, please bear with me.
I am using Xcode4.4 for c++ on a MacBook Pro and I'm trying to use the gmp library. I have gone to the gmp site: http://gmplib.org and have clicked on the download gmp-5.1.tar.lz but what is downloaded seems very cryptic and I'm not sure on how to proceed. I know that once you've got the library on your computer you can then link it into your project and use header files to use the library. I am also not sure how to do this.
Could anyone walk me through the process of downloading the gmp library and then using it in a c++ project on Xcode?
Any other comments/advice on this would also be great.
Thanks.