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How to manually build OpenCV to work with ROS?

asked 2013-03-06 04:37:38 -0500

AdrianPeng gravatar image

updated 2014-01-28 17:15:33 -0500

ngrennan gravatar image

Since ROS doesn't have binary package for ARM, I cannot use "apt-get install ros-groovy-opencv2" to download and install OpenCV libraries for ROS ("E: Unable to locate package" will appear). Can anyone give me some hints to manually download, install and wrap OpenCV libraries with ROS?

Thanks for any help in advance!

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answered 2013-03-06 04:55:01 -0500

stantol gravatar image

updated 2013-03-06 04:56:17 -0500

I haven't done anything similar with groovy, but I think it should work more-or-less the same, since it's all CMake based. When I wanted to install OpenCV with CUDA, I did the process below. Note: I am a novice at building with CMake, so there are probably better ways of doing this.

  1. Install OpenCV to a specific directory following the instructions on their website.

  2. Create a CMakeModule folder within your working program directory, find a version of FindOpenCV.cmake to copy into that folder, then specify the path to OpenCV by adding the line:

    set(OpenCV_DIR "/directory/to/opencv2")

  3. In your program's CMake file, add:

    SET(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${PROJECT_SOURCE_DIR}/CMakeModules/")

    find_package(OpenCV REQUIRED) include_directories(${OpenCV_INCLUDE_DIRS}) add_definitions(${OpenCV_DEFINITIONS}) MESSAGE(STATUS "OpenCV at: ${OpenCV_INCLUDE_DIRS}")

    more code

    target_link_libraries(executable_name ${OpenCV_LIBRARIES})

There might be some specifics that are incorrect, but I think the general idea should work.

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Thanks for your reply! I will try it. By the way, which opencv version do you suggest for ARM?

AdrianPeng gravatar image AdrianPeng  ( 2013-03-06 05:24:02 -0500 )edit

I have no experience with ARM processors, so I can't offer any advice.

stantol gravatar image stantol  ( 2013-03-06 05:32:12 -0500 )edit
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answered 2013-05-21 04:46:05 -0500

enddl22 gravatar image

Thank you for your short tutorial.

I am quite new to CMake and have questions.

  1. Which file do I need to set OpenCV_DIR, I guess it should be FindOpenCV.cmake.

  2. Where can I get FindOpenCV.cmake file? Is it right? http://opencv.willowgarage.com/wiki/FindOpenCV.cmake

  3. set(OpenCV_DIR "/directory/to/opencv2"), where is /directory/to/opencv2? Is this the installation directory(default: /usr/local) or source root directory or build root directory?

It keeps saying

/usr/local/include/opencv/highgui.h:45:33: fatal error: opencv2/core/core_c.h: No such file or directory compilation terminated.

Thank you.

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  1. Yes, the way that I did it, I set that variable in FindOpenCV.cmake.
  2. That FindOpenCV.cmake should probably work fine.
  3. /directory/to/opencv2 should be the directory of the OpenCV you want to use (e.g., one that you compiled with CUDA, a newer/older version, etc.).
stantol gravatar image stantol  ( 2013-05-21 09:45:41 -0500 )edit

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Asked: 2013-03-06 04:37:38 -0500

Seen: 2,202 times

Last updated: May 21 '13