opencv图像翻转、图像旋转

lqj_本人

发布于 2023-10-14 11:04:21

2630

发布于 2023-10-14 11:04:21

文章被收录于专栏：云开发小程序1云开发小程序1

图像的翻转

flip（src，flipCode） flipCode = 0 表示上下翻转 flipCode > 0 表示左右翻转 flipCode < 0 上下 + 左右

上下翻转

import  cv2
import  numpy as np

lufei = cv2.imread('3.png')

new_lufei = cv2.flip(lufei,0)
img = cv2.resize(new_lufei,(800,500))
lufei = cv2.resize(lufei,(800,500))
cv2.imshow('lufei',img)
cv2.imshow("lu,",lufei)
cv2.waitKey(0)
cv2.destroyAllWindows()

显示结果：

左右翻转

import  cv2
import  numpy as np

lufei = cv2.imread('4.png')

new_lufei = cv2.flip(lufei,1)
img = cv2.resize(new_lufei,(800,500))
lufei = cv2.resize(lufei,(800,500))
cv2.imshow('lufei',img)
cv2.imshow("lu,",lufei)
cv2.waitKey(0)
cv2.destroyAllWindows()

显示结果：

上下+左右翻转

import  cv2
import  numpy as np

lufei = cv2.imread('4.png')

new_lufei = cv2.flip(lufei,-1)
img = cv2.resize(new_lufei,(800,500))
lufei = cv2.resize(lufei,(800,500))
cv2.imshow('lufei',img)
cv2.imshow("lu,",lufei)
cv2.waitKey(0)
cv2.destroyAllWindows()

显示结果：

图像的翻转

rotate(img,rotateCode) ROTATE_90_CLOCKWISE 90度顺时针 ROTATE_180 180度 ROTATE_90_COUNTERCLOCKWISE 90度逆时针

import  cv2
import  numpy as np

lufei = cv2.imread('4.png')

new_lufei = cv2.rotate(lufei,rotateCode=cv2.cv2.ROTATE_90_CLOCKWISE)
img = cv2.resize(new_lufei,(800,500))
lufei = cv2.resize(lufei,(800,500))
cv2.imshow('lufei',img)
cv2.imshow("lu,",lufei)
cv2.waitKey(0)
cv2.destroyAllWindows()

显示结果：