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[Python] OpenCV ๊ธฐ์ด 7 - ์ด๋ฏธ์ง ๋์นญ ๋ฐ ํ์ ๋ณธ๋ฌธ
๐ฅ๏ธ Computer Vision/Opencv
[Python] OpenCV ๊ธฐ์ด 7 - ์ด๋ฏธ์ง ๋์นญ ๋ฐ ํ์
ใ ใ ใ ใ 2022. 8. 7. 23:10728x90
1. ์ด๋ฏธ์ง ๋์นญ
1. ์ข์ฐ ๋์นญ : cv2.flip([์ด๋ฏธ์ง], flipcode > 0)
2. ์ํ ๋์นญ : cv2.flip([์ด๋ฏธ์ง], flipcode == 0)
3. ์ํ์ข์ฐ ๋์นญ : cv2.flip([์ด๋ฏธ์ง], flipcode < 0)
1. ์ข์ฐ ๋์นญ
import cv2
img = cv2.imread('img.jpg')
flip_horizontal = cv2.flip(img, 1) # flipcode > 0 : ์ข์ฐ ๋์นญ
cv2.imshow('img',img)
cv2.imshow('flip_horizontal',flip_horizontal)
cv2.waitKey(0)
cv2.destroyAllWindows()
2. ์ํ ๋์นญ
img = cv2.imread('img.jpg')
flip_vertical = cv2.flip(img, 0) # flipcode == 0 : ์ํ ๋์นญ
cv2.imshow('img',img)
cv2.imshow('flip_vertical',flip_vertical)
cv2.waitKey(0)
cv2.destroyAllWindows()
3. ์ํ์ข์ฐ ๋์นญ
img = cv2.imread('img.jpg')
flip_both = cv2.flip(img, -1) # flipcode < 0 : ์ํ์ข์ฐ ๋์นญ
cv2.imshow('img',img)
cv2.imshow('flip_both',flip_both)
cv2.waitKey(0)
cv2.destroyAllWindows()
2. ์ด๋ฏธ์ง ํ์
1. ์๊ณ ๋ฐฉํฅ 90๋ ํ์ : cv2.rotate([์ด๋ฏธ์ง], cv2.ROTATE_90_CLOCKWISE)
2. 180๋ ํ์ : cv2.rotate([์ด๋ฏธ์ง], cv2.ROTATE_180)
3. ์๊ณ ๋ฐ๋ ๋ฐฉํฅ 90๋ ํ์ : cv2.rotate([์ด๋ฏธ์ง], cv2.ROTATE_90_COUNTERCLOCKWISE)
1. ์๊ณ๋ฐฉํฅ 90๋ ํ์
import cv2
img = cv2.imread('img.jpg')
rotate_90 = cv2.rotate(img, cv2.ROTATE_90_CLOCKWISE) # ์๊ณ๋ฐฉํฅ์ผ๋ก 90๋ ํ์
cv2.imshow('img',img)
cv2.imshow('rotate_90',rotate_90)
cv2.waitKey(0)
cv2.destroyAllWindows()
2. 180๋ ํ์
import cv2
img = cv2.imread('img.jpg')
rotate_180 = cv2.rotate(img, cv2.ROTATE_180)
cv2.imshow('img',img)
cv2.imshow('rotate_180',rotate_180)
cv2.waitKey(0)
cv2.destroyAllWindows()
3. ์๊ณ ๋ฐ๋ ๋ฐฉํฅ 90๋ ํ์
import cv2
img = cv2.imread('img.jpg')
rotate_270 = cv2.rotate(img, cv2.ROTATE_90_COUNTERCLOCKWISE)
cv2.imshow('img',img)
cv2.imshow('rotate_270',rotate_270)
cv2.waitKey(0)
cv2.destroyAllWindows()
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