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2016-01-19 16:46:33 -0500 commented question Including nonfree modules in OpenCV 3.1

it works fine on these samples but if i try this it produces a lot of errors

2016-01-19 16:32:29 -0500 commented question Including nonfree modules in OpenCV 3.1

i've just tried surf_matcher.cpp

opencv2/xfeatures2d.hpp: file or directory not exist #include "opencv2/xfeatures2d.hpp" ^ compilation terminated.

2016-01-19 15:56:04 -0500 asked a question Including nonfree modules in OpenCV 3.1

Hi i'm trying to work on a code that use the extra modules of opencv. I've installed the extra modules following the readme txt

$ cd < opencv_build_directory > $ cmake -DOPENCV_EXTRA_MODULES_PATH=< opencv_contrib >/modules < opencv_source_directory > $ make -j5

it works but when i try to compile the code it says that error: ‘xfeatures2d’ is not a namespace-name (in the code there is using namespace cv::xfeatures2d; )


2016-01-17 06:13:54 -0500 asked a question Compiling error with -lippicv

Hi,i've just installed opencv 3.1 and i'm trying to compile a simple code written in c++. When i try to compile ,it appears this :

/usr/bin/ld: cannot find -lippicv
 collect2: error: ld returned 1 exit status

i've find same responses for this problem but none of this seems to work Thank you