opencv_tutorials/python/code_013/opencv_013.py at master · HZHCoder1990/opencv_tutorials · GitHub

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import cv2 as cv

import numpy as np

src = cv.imread("./test.png")

cv.namedWindow("input", cv.WINDOW_AUTOSIZE)

cv.imshow("input", src)

# X Flip 倒影

dst1 = cv.flip(src, 0);

cv.imshow("x-flip", dst1);

# Y Flip 镜像

dst2 = cv.flip(src, 1);

cv.imshow("y-flip", dst2);

# XY Flip 对角

dst3 = cv.flip(src, -1);

cv.imshow("xy-flip", dst3);

# custom y-flip

h, w, ch = src.shape

dst = np.zeros(src.shape, src.dtype)

for row in range(h):

for col in range(w):

b, g, r = src[row, col]

dst[row, w - col - 1] = [b, g, r]

cv.imshow("custom-y-flip", dst)

cv.waitKey(0)

cv.destroyAllWindows()

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