0030_OpenCV.md

OpenCV

学习OpenCV的基本使用方法

参考文档

• ImportError: libcblas.so.3: cannot open shared object file: No such file or directory
• OpenCV-Python Tutorials
• OpenCV-Python中文教程
• 树莓派OpenCV教程

python3 Install OpenCV

• sudo pip3 install opencv-python
• sudo apt-get install -y libhdf5-dev libhdf5-serial-dev libatlas-base-dev libjasper-dev libqtgui4 libqt4-test

python3 import cv2

pi@raspberrypi:~ $ python3
Python 3.7.3 (default, Apr  3 2019, 05:39:12)
[GCC 8.2.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import cv2
>>>

usb camera

• sudo apt-get install fswebcam
• fswebcam image.jpg
• fswebcam -r 1280x720 image2.jpg

Learning source code

OpenCV_Code