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Learn more about Labs can't add cv.h to project Ask Question Asked 11 years, 9 months ago Modified 9 years, 10 months ago Viewed 21k times 3

I'm new in Xcode. And i need a help to add lib to my project. I've downloaded opencv framework. I've added it to my project. In main.h i have:

#include <stdio.h> #include <cv.h> #include <highgui.h> #import <UIKit/UIKit.h> #import "AppDelegate.h" int main(int argc, char *argv[]) { @autoreleasepool { return UIApplicationMain(argc, argv, nil, NSStringFromClass([AppDelegate class])); }

}

When i run my project I got an error like this: cv.h not found, highgui.h not found. I check /usr/include via terminal and i saw that cv.h and highgui.h are located there. Tell me somebody what should i do?

• xcode
• opencv

Share Improve this question Follow asked Feb 16, 2013 at 18:29 user2032083user2032083 31322 gold badges44 silver badges1515 bronze badges Add a comment |

4 Answers 4

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try

#include <opencv/cv.h> OR #include <opencv2/opencv.hpp>

For more information about OpenCV installation - Click Here

Share Improve this answer Follow answered Feb 16, 2013 at 18:32 GuruGuru 22k1010 gold badges6767 silver badges104104 bronze badges 1

• I replace stdio.h to /usr/include/opencv. And there is no error with stdio.h. Xcode see this lib perfectly clearly. – user2032083 Commented Feb 16, 2013 at 18:44

Add a comment | 3

try this:

#include <opencv/cv.h> #include <opencv/highgui.h>

if this still does not work for you try to install opencv with MacPorts. You can find module on this link: https://www.macports.org/ports.php?by=library&substr=opencv

Share Improve this answer Follow answered Jan 6, 2015 at 11:02 Matej SerbecMatej Serbec 3122 bronze badges Add a comment | 1

You have to update your build settings in xcode. the error message is telling you that xcode does not know where to locate these files. There are two settings you need to update in your xcode build settings.

1. Library Search Paths

There are a lot of settings in xcode. To reduce the number of fields you have to search through use the search box in the top right hand corner. If you type in Library you will see a section title search paths that has the setting Library Search Paths. Update that field with the location of your library headers. The most common place is /usr/local/lib.

1. Header Search Paths

Just like step 1, you can reduce the number of options xcode displays by using the search box. Search for Header and you will see a section labeled Search Paths with the option of Header Search Paths. Update that field with the location of your library headers.

Share Improve this answer Follow edited Feb 16, 2013 at 18:47 answered Feb 16, 2013 at 18:37 FreddyFreddy 2,27911 gold badge2222 silver badges3232 bronze badges 8

• Thank you VERY much. But i have a little question also. I found "Header Search Path". When i click it i got "Debug +" and "Release +". Click "+" and i got "Any Architecture | Any SDK" and type box. Where exactly i have to include the path location? – user2032083 Commented Feb 16, 2013 at 18:57
• via terminal I see libs in /usr/include and in /usr/local/lib i have nothing – user2032083 Commented Feb 16, 2013 at 19:02
• It depends how you installed the library. I use brew for most of my third party libraries which puts them in /usr/local/lib & /usr/local/include. How did you install the library? – Freddy Commented Feb 17, 2013 at 0:22
• I was following this instruction. And i have no /usr/local/lib folder. What should i do when i click "Header Search Path" i got "Debug +" and "Release +". Click "+" and i got "Any Architecture | Any SDK" and type box. Where exactly i have to include the path location? – user2032083 Commented Feb 17, 2013 at 13:13
• I don't understand one thing. In /usr/include i have stdio.h. And It's ok, no errors. cv.h is located there too and i can't run my project – user2032083 Commented Feb 17, 2013 at 13:34

| Show 3 more comments 0

Make sure the installed location for your OpenCV headers is in your user header search path in Xcode. You can set this either in the project settings or the build settings for your target.

Share Improve this answer Follow answered Feb 16, 2013 at 18:35 iluvcaprailuvcapra 9,46622 gold badges3131 silver badges3232 bronze badges Add a comment |

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