使用eclipse和ubuntu 13.04构建opencv2.4.5应用程序时出错

error while building opencv 2.4.5 application with eclipse and ubuntu 13.04

本文关键字:应用程序 出错 opencv2 构建 eclipse ubuntu 使用      更新时间:2023-10-16

这可能是一个棘手的问题,但我已经被困了一段时间,我很感激任何帮助。。。

我已经能够安装opencv并使用终端运行示例应用程序,没有任何问题,但我想使用eclipse轻松管理我的项目。。。

我遵循了opencv教程中给出的说明[链接]http://docs.opencv.org/doc/tutorials/introduction/linux_eclipse/linux_eclipse.html

我遵循了一切,我仍然得到以下错误

/usr/bin/ld: cannot find -llibopencv_calib3d
/usr/bin/ld: cannot find -llibopencv_contrib
/usr/bin/ld: cannot find -llibopencv_core
/usr/bin/ld: cannot find -llibopencv_features2d
/usr/bin/ld: cannot find -llibopencv_flann
/usr/bin/ld: cannot find -llibopencv_gpu
/usr/bin/ld: cannot find -llibopencv_highgui
/usr/bin/ld: cannot find -llibopencv_imgproc
/usr/bin/ld: cannot find -llibopencv_legacy
/usr/bin/ld: cannot find -llibopencv_ml
/usr/bin/ld: cannot find -llibopencv_nonfree
/usr/bin/ld: cannot find -llibopencv_objdetect
/usr/bin/ld: cannot find -llibopencv_photo
/usr/bin/ld: cannot find -llibopencv_stitching
/usr/bin/ld: cannot find -llibopencv_superres
/usr/bin/ld: cannot find -llibopencv_ts
/usr/bin/ld: cannot find -llibopencv_video
/usr/bin/ld: cannot find -llibopencv_videostab
collect2: error: ld returned 1 exit status
make: *** [Test_OpenCV01] Error 1

我能在我的步骤和教程之间找到的唯一区别是:当我运行命令时:

pkg-config --libs opencv

这是我的输出

/usr/local/lib/libopencv_calib3d.so /usr/local/lib/libopencv_contrib.so /usr/local/lib/libopencv_core.so /usr/local/lib/libopencv_features2d.so /usr/local/lib/libopencv_flann.so /usr/local/lib/libopencv_gpu.so /usr/local/lib/libopencv_highgui.so /usr/local/lib/libopencv_imgproc.so /usr/local/lib/libopencv_legacy.so /usr/local/lib/libopencv_ml.so /usr/local/lib/libopencv_nonfree.so /usr/local/lib/libopencv_objdetect.so /usr/local/lib/libopencv_photo.so /usr/local/lib/libopencv_stitching.so /usr/local/lib/libopencv_superres.so /usr/local/lib/libopencv_ts.so /usr/local/lib/libopencv_video.so /usr/local/lib/libopencv_videostab.so 

所以库的名称有点不同,所以我使用我现有的名称。

eclipse自动执行的命令行是

g++ -L/usr/local/lib/ -o "Test_OpenCV01"  ./src/main.o   -llibopencv_calib3d -llibopencv_contrib -llibopencv_core  -llibopencv_features2d  -llibopencv_flann -llibopencv_gpu -llibopencv_highgui -llibopencv_imgproc -llibopencv_legacy -llibopencv_ml -llibopencv_nonfree -llibopencv_objdetect -llibopencv_photo -llibopencv_stitching -llibopencv_superres -llibopencv_ts -llibopencv_video -llibopencv_videostab

它明确指定库路径为/usr/local/lib/,这是共享库所在的位置,但在错误中它表示在/usr/bin/ld 中找不到lib文件

p.s。两种我都试过了

1) 配置OpenCV以使用共享库:

sudo gedit/etc/ld.so.conf.d/opencv.conf

并在文件的末尾添加以下行

/usr/local/lib保存后正在运行的sudo ldconfig。

2) 运行命令

export LD_LIBRARY_PATH=/usr/local/lib

我还添加了

PKG_CONFIG_PATH=$PKG_CONFIG _PATH:/usr/local/lib/pkgconfig导出PKG_CONFIG_PATH

到/etc/bash.bashc文件的末尾。

提前感谢您的帮助。

您的链接步骤错误地指定了库。如果库是libfoo.so,那么您需要说-lfoo

更换

g++ -L/usr/local/lib/ -o "Test_OpenCV01"  ./src/main.o   -llibopencv_calib3d -llibopencv_contrib -llibopencv_core  -llibopencv_features2d  -llibopencv_flann -llibopencv_gpu -llibopencv_highgui -llibopencv_imgproc -llibopencv_legacy -llibopencv_ml -llibopencv_nonfree -llibopencv_objdetect -llibopencv_photo -llibopencv_stitching -llibopencv_superres -llibopencv_ts -llibopencv_video -llibopencv_videostab

带有

g++ -L/usr/local/lib/ -o "Test_OpenCV01"  ./src/main.o   -lopencv_calib3d -lopencv_contrib -lopencv_core  -lopencv_features2d  -lopencv_flann -lopencv_gpu -lopencv_highgui -lopencv_imgproc -lopencv_legacy -lopencv_ml -lopencv_nonfree -lopencv_objdetect -lopencv_photo -lopencv_stitching -lopencv_superres -lopencv_ts -lopencv_video -lopencv_videostab

您可以在此处阅读有关链接选项的更多信息。

尽管文件名类似/usr/local/lib文件夹下的liblibopencv_core.so,但在GCC C++链接器库中只提到opencv_core。对要添加到库中的其他文件执行相同操作。