Chuanshuoge: opencv 42 mirror

Monday, 3 May 2021

flip horizontal

flip vertical

flip both

#main.py

import argparse

import cv2

# construct the argument parser and parse the arguments

ap = argparse.ArgumentParser()

ap.add_argument("-i", "--image", type=str, default="opencv_logo.png",

help="path to the input image")

args = vars(ap.parse_args())

# load the original input image and display it to our screen

image = cv2.imread(args["image"])

cv2.imshow("Original", image)

# flip the image horizontally

print("[INFO] flipping image horizontally...")

flipped = cv2.flip(image, 1)

cv2.imshow("Flipped Horizontally", flipped)

# flip the image vertically

flipped = cv2.flip(image, 0)

print("[INFO] flipping image vertically...")

cv2.imshow("Flipped Vertically", flipped)

# flip the image along both axes

flipped = cv2.flip(image, -1)

print("[INFO] flipping image horizontally and vertically...")

cv2.imshow("Flipped Horizontally & Vertically", flipped)

cv2.waitKey(0)

reference:

Chuanshuoge