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Ubuntu在CMakeLists.txt中指定OpenCV版本的参考方法

写在前面

自己的测试环境:
  Ubuntu20.04, ROS-Noetic, OpenCV-4.2.0, OpenCV-4.5.4。

一、问题描述

编译运行OpenCV遇到如下报错:

terminate called after throwing an instance of 'cv::Exception'
  what():  OpenCV(4.5.4) /home/wong/third_party/opencv-4.5.4/modules/core/src/matrix.cpp:250: error: (-215:Assertion failed) s >= 0 in function 'setSize'

在这里插入图片描述

二、解决方法

出现上述报错的原因是 OpenCV 库版本不兼容的问题,因此需要在CMakeLists.txt中指定 OpenCV 4.2.0 的路径:

set(OpenCV_DIR /usr/lib/x86_64-linux-gnu/cmake/opencv4/)
find_package(OpenCV REQUIRED)
message("OpenCV_DIR: ${OpenCV_DIR}")
message("OpenCV_INCLUDE_DIRS: ${OpenCV_INCLUDE_DIRS}")
message("OpenCV version: ${OpenCV_VERSION}")
# 打印结果
# OpenCV_DIR: /usr/lib/x86_64-linux-gnu/cmake/opencv4/
# OpenCV_INCLUDE_DIRS: /usr/include/opencv4
# OpenCV version: 4.2.0

然后重新编译,重新运行即可。

参考链接

[1] wonghome. OpenCV报错遇到 No rule to make target ‘/usr/lib/x86_64-linux-gnu/libopencv_dpm.s‘ 的参考解决方法 [EB/OL]. https://blog.csdn.net/qq_39779233/article/details/142202706, 2024-09-13/2024-09-13.


原文地址:https://blog.csdn.net/qq_39779233/article/details/142202528

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