如何使用 mingw 在启用 tbb 的情况下安装 opencv [英] How to install opencv with tbb enabled using mingw

问题描述

如何在启用 TBB 的情况下安装 Opencv?

How to install Opencv with TBB enabled?

我尝试了以下方法:

1) 下载了 TBB 包.

1) Downloaded the TBB package.

2) 使用以下命令构建

2) Build using the below command

 mingw32-make compiler=gcc arch=ia32 runtime=mingw default

3) 我将环境变量路径设置为d: bbuildwindows_ia32_gcc_mingw_release

3) I set the Environmental variable path as "d: bbuildwindows_ia32_gcc_mingw_release

3) 现在使用 cmake，我启用了WITH_TBB"并编译了 opencv.

3) Now using cmake, I enabled "WITH_TBB" and compiled the opencv.

它抛出以下错误.

[ 22%] Built target pch_Generate_opencv_core
Linking CXX shared library ....inlibopencv_core245.dll
c:/mingw/bin/../lib/gcc/mingw32/4.6.2/../../../../mingw32/bin/ld.exe: cannot fin
d -ltbb
collect2: ld returned 1 exit status
make[2]: *** [bin/libopencv_core245.dll] Error 1
make[1]: *** [modules/core/CMakeFiles/opencv_core.dir/all] Error 2
make: *** [all] Error 2

我是不是遗漏了什么...请指教..

Am I missing anything... Please advice..

推荐答案

我遇到了同样的问题，以下解决了 tbb 链接错误:

I had the same problem, the following worked out for removing the tbb linking error:

(假设您已经构建了 tbb，正如您已经在问题中解释的那样)

(Assuming you have already built tbb, as you are already explaining in your question)

• 从 CMake，配置一次 OpenCV

• From CMake, configure one time OpenCV

启用WITH_TBB，小心不要启用BUILD_TBB:尽管付出了很多努力，OpenCV的自动下载和构建还是失败了.如果您之前启用了 BUILD_TBB，我的建议是从头开始，清除 cmake 缓存.

Enable WITH_TBB, be careful not enabling BUILD_TBB: the automatic downloading and building of OpenCV failed miserably for me despite many efforts. If you had previously enabled BUILD_TBB, my suggestion is to restart from the beginnning, clearing cmake cache.

第二次配置 OpenCV

Configure a second time OpenCV

现在应该出现一些变量:TBB_INCLUDE_DIRS.对我来说，我设置了以下值(分别):

Now some variables should appear: TBB_INCLUDE_DIRS. For me I set the following values (respectively):

tbb41_20130314oss/include

出现 2 个新变量:TBB_STDDEF_PATH 和 TBB_LIB_DIR.它们被分配了一些明显合理的值.对我来说，TBB_STDDEF_PATH 是正确的，但 TBB_LIB_DIR 不是！所以我更正为:

2 new variables appears: TBB_STDDEF_PATH and TBB_LIB_DIR. They are assigned some apparently reasonable values. For me, TBB_STDDEF_PATH was correct, but TBB_LIB_DIR was not! So I corrected it to be:

tbb41_20130314oss/build/windows_ia32_gcc_mingw4.8.1_release

然后我保留了 TBB_STDDEF_PATH 原样:

and I left TBB_STDDEF_PATH as it was:

tbb41_20130314oss/include/tbb/tbb_stddef.h

配置第三次时间

最后点击Generate，你就可以构建mingw32-make -j7

Finally, click Generate, and you are ready to build mingw32-make -j7

一旦您开始使用 opencv 库，请确保 tbb DLL 在您的路径中

Once you start using the opencv library, make sue the tbb DLLs are in your path

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