@小鱼 安装的是 sudo apt install ros-melodic-desktop-full

输入dpkg -l | grep opencv提示的是i libopencv 4.1.1-2-gd5a58aa75 arm64 Open Computer Vision Library
ii libopencv-calib3d3.2:arm64 3.2.0+dfsg-4ubuntu0.1 arm64 computer vision Camera Calibration library
ii libopencv-core3.2:arm64 3.2.0+dfsg-4ubuntu0.1 arm64 computer vision core library
ii libopencv-dev 4.1.1-2-gd5a58aa75 arm64 Development files for Open Source Computer Vision Library
ii libopencv-features2d3.2:arm64 3.2.0+dfsg-4ubuntu0.1 arm64 computer vision Feature Detection and Descriptor Extraction library
ii libopencv-flann3.2:arm64 3.2.0+dfsg-4ubuntu0.1 arm64 computer vision Clustering and Search in Multi-Dimensional spaces library
ii libopencv-highgui3.2:arm64 3.2.0+dfsg-4ubuntu0.1 arm64 computer vision High-level GUI and Media I/O library
ii libopencv-imgcodecs3.2:arm64 3.2.0+dfsg-4ubuntu0.1 arm64 computer vision Image Codecs library
ii libopencv-imgproc3.2:arm64 3.2.0+dfsg-4ubuntu0.1 arm64 computer vision Image Processing library
ii libopencv-ml3.2:arm64 3.2.0+dfsg-4ubuntu0.1 arm64 computer vision Machine Learning library
ii libopencv-python 4.1.1-2-gd5a58aa75 arm64 Python bindings for Open Source Computer Vision Library
ii libopencv-samples 4.1.1-2-gd5a58aa75 arm64 Samples for Open Source Computer Vision Library
ii libopencv-videoio3.2:arm64 3.2.0+dfsg-4ubuntu0.1 arm64 computer vision Video I/O library
ii opencv-licenses 4.1.1-2-gd5a58aa75 arm64 Open Computer Vision Library
ii ros-melodic-vision-opencv 1.13.1-1bionic.20221025.230333 arm64 Packages for interfacing ROS with OpenCV, a library of programming functions for real time computer vision.