嘿我试图在基本操作系统上使用OpenCV Lib(基于Ubuntu)。
我遵循了本教程:
https://www.youtube.com/watch?v=i1K9rXiei9I
我将这些行添加到CmakeList.txt:
find_package(OpenCV REQUIRED)
include_directories(${OpenCV_INCLUDE_DIRS})
target_link_libraries(myOpenCVTest ${OpenCV_LIBS})
但是当我构建项目时,它会失败并出现一些错误:
/usr/bin/ld: cannot find -lopencv_core
...
任何人都可以帮助我吗?
答案 0 :(得分:15)
我解决了这个问题。
首先,我删除了所有旧的OpenCV文件和安装。
之后我按照guide来安装OpenCV和所有必需的软件包。
现在一切都在使用这个CmakeList.txt:
cmake_minimum_required(VERSION 2.8.4)
project(OpenCVTest)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
find_package( OpenCV REQUIRED )
set(SOURCE_FILES main.cpp)
add_executable(${PROJECT_NAME} ${SOURCE_FILES})
include_directories(${OpenCV_INCLUDE_DIRS})
target_link_libraries( ${PROJECT_NAME} ${OpenCV_LIBS} )
答案 1 :(得分:0)
我必须在cmake文件中强制声明OpenCV_FOUND 1
,整个文件看起来像:
cmake_minimum_required(VERSION 3.3)
project(testing)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
set(OpenCV_FOUND 1)
find_package( OpenCV REQUIRED )
set(SOURCE_FILES main.cpp)
add_executable(testing ${SOURCE_FILES})
target_link_libraries(testing ${OpenCV_LIBS})
答案 2 :(得分:0)
(在我们在评论部分聊天之后)
我不确定您用于安装的视频是什么,但假设您使用了基于cmake的安装,则通常会运行make
,然后sudo make install
将所有内容复制到正确的位置
或者您可以添加link_directories(home/Projects/opencv/opencv-3/build/lib/)
和include_directories((home/Projects/opencv/opencv-3/include/)
到您的CMakeLists.txt