一、安装环境

虚拟机：

Ubuntu 22.04

opencv

版本：

opencv-4.5.2

、

opencv_contrib-4.5.2

、

cvui-2.9.0-beta

二、编译opencv和opencv_contrib

1、源码下载：

opencv

：

https://github.com/opencv/opencv

链接

2

：

https://opencv.org/releases/

github下载

opencv_contrib

：

https://github.com/opencv/opencv_contrib

注意事项

:opencv_contrib

和

opencv

版本

要对应

2、安装前准备

在自己虚拟机的主目录中创建一个

opencv_build

，将两个源码包解压的文件夹放入

其中：

mkdir

~/opencv_build &&

cd

~/opencv_build/opencv-4.5.2/

mkdir

build

cd

build

安装依赖项 

安装

g++, cmake, make ,wget, unzip

sudo

apt install

-y

g

++

sudo

apt install

-y

cmake

sudo

apt install

-y

make

sudo

apt install

-y

wget

sudo

apt install

-y

unzip

安装opencv依赖的基本库

sudo

apt-get install build-essential libgtk2.0-dev libgtk-3-devlibavcodec-dev libavformat-dev libjpeg-dev libswscale-dev libtiff5-dev

3、编译安装 

cmake

配置

sudo

cmake

-DCMAKE_BUILD_TYPE

=

RELEASE \-

DCMAKE_INSTALL_PREFIX

=

/usr/local \-

DOPENCV_EXTRA_MODULES_PATH

=

/home/pjy/opencv_build/opencv_contrib-

4.5.2/modules .. \-

DWITH_CUDA

=

1

\-

DWITH_GTK

=

ON \-

DENABLE_FAST_MATH

=

1

\-

DCUDA_FAST_MATH

=

1

\-

DWITH_CUBLAS

=

1

\-

DOPENCV_GENERATE_PKGCONFIG

=

ON \-

DWITH_GSTREAMER

=

ON \..

-DOPENCV_EXTRA_MODULES_PATH=

/home/pjy/opencv_build/

opencv_contrib-4.5.2/modules

加粗部分换成自己的路径

-DOPENCV_EXTRA_MODULES_PATH=

/home/pjy/opencv_build/opencv_contrib-

4.5.2

/modules

指明

opencv_contrib

路径，这样好一起编译

如下图就成功：

 

make

编译

opencv

和

opencv_contrib

版本号一定要对应，不然编译会报错

sudo make

-j8

编译完成后，安装

sudo make install  

4、环境配置

配置

pkg-config

环境

sudo

gedit /etc/profile.d/pkgconfig.sh

 可能为空文件，在文件中加入

export

PKG_CONFIG_PATH

=

/usr/local/lib/pkgconfig:

$PKG_CONFIG_PATH

保存并退出，source激活

source /etc/profile  

验证是否成功

//

查看版本，有输出

4.5.2

就成功

pkg-config

--modversion

opencv4

//

查看库

pkg-config

--libs

opencv4

输出类似下面这样即为成功

配置动态库环境

sudo

gedit /etc/ld.so.conf.d/opencv4.conf

文件末尾加上

/usr/local/lib 

使配置生效

sudo ldconfig  

5、demo测试  

打开新终端，进入到

example_cmake

目录

cd

~/opencv_build/opencv-4.5.2/samples/cpp/example_cmake

cmake .

make

./opencv_example

6、最后在qt的.pro中加入头文件路径和库就可以在qt中使用了  

#

添加

opencv

头文件

INCLUDEPATH

+=

/usr/local/include/opencv4

INCLUDEPATH

+=

/usr/local/include/opencv4/opencv2

#

添加

opencv

库文件

LIBS

+=

-L

/home/geclab/buildroot-2016.11/output/host/usr/arm-none-

linux-gnueabi/sysroot/usr/local/lib

-lopencv_gapi -

lopencv_stitching -lopencv_aruco -lopencv_bgsegm -

lopencv_bioinspired -lopencv_ccalib -lopencv_dnn_objdetect -

lopencv_dnn_superres -lopencv_dpm -lopencv_face -lopencv_fuzzy -

lopencv_hfs -lopencv_img_hash -lopencv_intensity_transform -

lopencv_line_descriptor -lopencv_mcc -lopencv_quality -

lopencv_rapid -lopencv_reg -lopencv_rgbd -lopencv_saliency -

lopencv_stereo -lopencv_structured_light -lopencv_phase_unwrapping

-lopencv_superres -lopencv_optflow -lopencv_surface_matching -

lopencv_tracking -lopencv_highgui -lopencv_datasets -lopencv_text -

lopencv_plot -lopencv_videostab -lopencv_videoio -

lopencv_wechat_qrcode -lopencv_xfeatures2d -lopencv_shape -

lopencv_ml -lopencv_ximgproc -lopencv_video -lopencv_dnn -

lopencv_xobjdetect -lopencv_objdetect -lopencv_calib3d -

lopencv_imgcodecs -lopencv_features2d -lopencv_flann -

lopencv_xphoto -lopencv_photo -lopencv_imgproc -lopencv_core

我一般都是这样写

 #添加opencv 的头文件 ARM-OpenCV 环境

INCLUDEPATH += /opencv4-arm/include

INCLUDEPATH += /opencv4-arm/include/opencv4

INCLUDEPATH += /opencv4-arm/include/opencv4/opencv2

#添加OpenCV库文件

LIBS += -L/opencv4-arm/lib -lopencv_world

#Windows OpenCV 环境

#添加头文件

INCLUDEPATH += E:\OpenCV\include

INCLUDEPATH += E:\OpenCV\include\opencv2

#添加库文件

LIBS += E:\OpenCV\x64\mingw\lib\libopencv_*.a

三、cvui的安装  

1、源码下载：

https://github.com/Dovyski/cvui

2、编译安装

mkdir

-p

~/cvui-2.9.0-beta/build

cmake .

make

sudo make

install

3、查看是否安装成功 

ls

/usr/local/include

四、参考文章

参考博客：

https://blog.csdn.net/weixin_73378881/article/details/132167614?utm_medium=distribute.pc_relevant.none-task-blog-2~default~baidujs_baidulandingword~default-0-132167614-blog-125799361.235

https://blog.csdn.net/bjh123hxhdhd/article/details/134608662？spm=1001.2101.3001.6650.2&utm_medium=distribute.pc_relevant.none-task-blog-2%7Edefault%7ECTRLIST%7ERate-2-134608662-blog-132167614.235%5Ev43%5Econtrol&depth_1-utm_source=distribute.pc_relevant.none-task-blog-2%7Edefault%7ECTRLIST%7ERate-2-134608662-blog-132167614.235%5Ev43%5Econtrol&utm_relevant_index=5