一、安转步骤
- download QT5.9
- download Cmake
- download openCV3.2 sources code
- make & make insatll opencv with using Cmake
- 配置环境变量
- run a demo
二、软件下载
- QT5.9下载地址:http://download.qt.io/official_releases/qt/
- Cmake 3.9 下载地址:https://cmake.org/download/
- openCV 3.2源码下载地址:https://codeload.github.com/opencv/opencv/zip/3.2.0
三、用Cmake编译openCV3.2
打开Cmake gui,选择openCV3.2源码地址和build目标文件 如果结果报错且出现下载opencv_ffmpeg失败的话用以下方法处理: 手动下载oepncv_ffmpeg,链接:https://pan.baidu.com/s/1kUDgB5P密码:mnua 下载完成之后,ffmpeg_version.cmake、opencv_ffmpeg.dll、opencv_ffmpeg_64.dll 三项复制到opencv源码目录下的3rdpartyffmpeg目录下面替换,打开文件 ffmpeg.cmake ,将其内容修改为: message(STATUS"FFMPEG: Package successfully downloaded")
include(${CMAKE_CURRENT_LIST_DIR}/ffmpeg_version.cmake)
?
?
打钩WITH_QT和WITH_OPENGL ?
当Configure完成之后,还是会有报错,我们需要如下修改 在前面红色高亮地方一次修改Value的值,然后再次点击configure E:QtQt5.9.05.9mingw53_32libcmakeQt5Concurrent
E:QtQt5.9.05.9mingw53_32libcmakeQt5Core
E:QtQt5.9.05.9mingw53_32libcmakeQt5Gui
E:QtQt5.9.05.9mingw53_32libcmakeQt5OpenGL
E:QtQt5.9.05.9mingw53_32libcmakeQt5Test
E:QtQt5.9.05.9mingw53_32libcmakeQt5Widgets
等待上面操作完成之后,关闭CMake。 到 opencv源码下找到 OpenCVCompilerOptions.cmake,打开文件OpenCVCompilerOptions.cmake,找到add_extra_compiler_option(-Werror=non-virtual-dtor),将其注释掉变为#add_extra_compiler_option(-Werror=non-virtual-dtor)
make & make install
- 在前面build指定的文件夹下打开命令中断,输入:mingw32-make -j4
- 编译好之后,输入: mingw32-make install
配置环境变量
- 在PATH中加入:F:openCV3_2installx86mingwbin;F:openCV3_2bin
- 重启电脑
四、demo
#include<iostream>
#include<opencv2/opencv.hpp>
using namespace std;
using namespace cv;
int main(int argc,char *argv[])
{
cv::Mat img;
while(1)
{
img =imread("C:Users用户Picturesee.png");
cv::imshow("a",img);
cv::waitKey(10);
}
}
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(编辑:李大同)
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