python cv2 基础操作 opencv

import cv2
img = cv2.imread('image_path')

import cv2
img = cv2.imread('image_path')
cv2.imshow('name',img)
cv2.waitKey()
cv2.destroyAllWindows()

import cv2
img = cv2.imread('image_path')
img.shape

import cv2
img = cv2.imread('image_path')
b,g,r = cv2.split(img)

• cv2.add 方法 相加 取最大值255
• img_a + img_b ,直接相加结果除255 取模

import cv2
img_a = cv2.imread('image_a_path')
img_b = cv2.imread('image_b_path')
img_c = cv2.add(img_a,img_b)
img_d = img_a + img_b