如何安装opencv与tbb启用使用mingw [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？

我尝试了以下操作：

1）下载TBB包。

2）使用以下命令生成

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

3）我将环境变量路径设置为d：\tbb\build\ windows_ia32_gcc_mingw_release

3）现在使用cmake，我启用了WITH_TBB并编译了opencv。

  [22％]建立目标pch_Generate_opencv_core 
链接CXX共享库.. \..\ bin \libopencv_core245.dll 
c：/ mingw / bin /../ lib / gcc / mingw32 / 4.6.2 /../../../../ mingw32 / bin / ld.exe：can not fin 
d -ltbb 
 collect2：ld返回1退出状态
 make [2]：*** [bin / libopencv_core245.dll]错误1 
 make [1]：** * [modules / core / CMakeFiles / opencv_core.dir / all]错误2 
 make：*** [all]错误2 
  

我缺少任何东西...
请咨询..

解决方案

有相同的问题，以下是为了消除tbb链接错误：

（假设你已经建立了tbb，因为你已经在你的问题中解释） p>

• 从CMake配置一次OpenCV


WITH_TBB ，请小心不启用 BUILD_TBB ：自动下载和构建OpenCV我尽管许多努力。如果您以前启用了 BUILD_TBB ，我的建议是从头开始重新启动，清除cmake缓存。



• 第二次配置OpenCV




• 现在应该出现一些变量： TBB_INCLUDE_DIRS 。对我来说，分别设置以下值：

  
  
  

  tbb41_20130314oss / include

  
  

• 出现2个新变量： TBB_STDDEF_PATH 和 TBB_LIB_DIR 。他们被赋予一些明显合理的价值。对我来说， TBB_STDDEF_PATH 是正确的，但 TBB_LIB_DIR 不是！所以我将其更正为：

  
  
  

  tbb41_20130314oss / build / windows_ia32_gcc_mingw4.8.1_release

  
  
  

  ，我留下 TBB_STDDEF_PATH ，因为它是：

  
  
  

  tbb41_20130314ossoss / include / tbb / tbb_stddef.h




• 设定第三 / li>
  

• 最后，点击Generate并准备建立 mingw32-make -j7

  
  

• 一旦您开始使用opencv库，请使用您的路径中的tbb DLL。

How to install Opencv with TBB enabled?

I tried the following:

1) Downloaded the TBB package.

2) Build using the below command

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

3) I set the Environmental variable path as "d:\tbb\build\windows_ia32_gcc_mingw_release

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

its throwing the below error.

[ 22%] Built target pch_Generate_opencv_core
Linking CXX shared library ..\..\bin\libopencv_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

Am I missing anything... Please advice..

解决方案

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

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

• From CMake, configure one time OpenCV

• 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.

• Configure a second time OpenCV

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

  tbb41_20130314oss/include

• 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

  and I left TBB_STDDEF_PATH as it was:

  tbb41_20130314oss/include/tbb/tbb_stddef.h

• Configure a third time

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

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

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