例如,错误信息可能是“undefined reference to cv::VideoCapture::VideoCapture()”或“undefined reference to cv::imread”。 检查OpenCV库的安装: 确保OpenCV库已经正确安装在你的系统上。你可以通过运行pkg-config --modversion opencv(在Linux系统上)来检查OpenCV的版本。 如果OpenCV未安装或版本不匹配,你需要重新...
可通过cv.namedWindow()实现创建一个空窗口,然后将图像加载到该窗口,其第二个参数为一个标志,默认为cv.WINDOW_AUTOSIZE,若将标志指定为cv.WINDOW_NORMAL,可调整窗口大小,当图像尺寸过大及向窗口添加跟踪栏时,很有用处。 可使用cv.destoryWindow()函数,传递窗口名称为参数,销毁特定的窗口。 Matplotlib是Python的绘...
2月 15, 2023 Knowledge 标题 69166 - OpenCV Libraries - undefined reference to `cv::imread, namedWindow, imshow, waitKey Description Xilinx SDK includes an openCV example template with matrix operations, based on the pre-built openCV libraries. ...
undefined reference to `cv::imread(std::string const&, int)' undefined reference to `cv::noArray()' undefined reference to `cv::_OutputArray::_OutputArray(cv::Mat&)' undefined reference to `cv::_InputArray::_InputArray(cv::Mat const&)' undefined reference to `cv::imwrite(std::string ...
一般出现Undefined reference的错误时主要有一下几点: CMakeLists.txt中链接opencv动态库时是否链接成功(TARGET_LINK_LIBRARIES(${OpenCV_LIBS})) CMakeLists.txt中没有include opencv的头文件目录或者include错了目录,比如include了其他版本的opencv头文件 (INCLUDE_DIRECTORIES(${OpenCV_INCLUDE_DIRS})) ...
编译: cmake .. make 1. 2. 参考文章: fatal error: opencv2/opencv.hpp: No such file or directory undefined reference to `cv::imread(std::__cxx11::basic_string<char, std::char_traits<char>, std::all...
libopencv_world.so: undefined reference to `cv::dnn::opt_NEON::convBlock_F32 [ 65%] Linking CXX executable ../../bin/opencv_model_diagnostics../../lib/libopencv_world.so: undefined reference to `cv::dnn::opt_NEON::convBlock_F32(int, float const*, float const*, float*, int, bo...
text+0x64b): undefined reference to `cv::_InputArray::_InputArray(cv::Mat const&)' release/widget.o:widget.cpp:(.text+0x66a): undefined reference to `cv::cvtColor(cv::_InputArray const&, cv::_OutputArray const&, int, int)' release/widget.o:widget.cpp:(.text+0x6c9): undefined ...
I am building a project with OpenCV 4 beta and when I use the function cv::imread or cv::imwrite I get an undefined reference to the functions. My CMakeLists.txt is as follows: cmake_minimum_required(VERSION 3.1.0) project(myImageProgram) set(CMAKE_PREFIX_PATH /home/marios-cellink/...
undefined reference to `cv::imshow(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, cv::_InputArray const&)' [build] D:/keypro/mingw64posix/bin/../lib/gcc/x86_64-w64-mingw32/13.1.0/../../../../x86_64-w64-mingw32/bin/ld.exe: D...