5.12.1. 常用¶
安装:
pip install opencv-contrib-python
pip install opencv-contrib-python==3.4.1.15
使用:
import cv2
PyPI repository:
opencv-python: contains just the main modules
opencv-contrib-python: contains both the main modules along with the contrib modules
opencv-python-headless: Same as opencv-python but no GUI functionality. Useful for headless systems.
opencv-contrib-python-headless: Same as opencv-contrib-python but no GUI functionality. Useful for headless systems.
警告
You DO NOT want to install both opencv-python and opencv-contrib-python — pick ONE of them.
opencv 里面基础的模块是 core、highgui、imgproc 三个模块:
core 模块
实现最核心的数据结构及其基本运算，如绘图函数、数组操作相关函数等
highgui 模块
是视频与图像的读取、显示、存储等接口
imgproc 模块
实现图像处理的基础方法，包括图像滤波、图像的几何变换、平滑、阈值分割、形态学处理、边缘检测、目标检测、运行分析和对象跟踪等。
警告
Opencv 在 3.4.2 之后有些算法申请了专利，得付费使用