1、Python 安裝 OpenCV
Python 安裝 OpenCV 的命令很簡單,就一條命令,如下(前置條件是已安裝 pip):
pip install opencv-python
出現如下輸出即表示安裝成功:
2、Python 代碼中用 OpenCV 讀取圖片並顯示
#!/usr/bin/python
# -*- coding: UTF-8 -*-
import cv2 as cv
img = cv.imread('/Users/wangjianjun/Desktop/Debug/pics/aaa.jpeg', cv.IMREAD_UNCHANGED) # 按原始顏色格式讀取圖片
# img = cv.imread('/Users/wangjianjun/Desktop/Debug/pics/aaa.jpeg', cv.IMREAD_GRAYSCALE) # 按灰度圖讀取圖片
print img.shape # 輸出:(240, 240, 3)
cv.namedWindow("image")
cv.imshow('image', img)
cv.waitKey (0)
cv.destroyAllWindows()