import cv2
from math import *
def remote(img,degree):
height, width = img.shape[:2]
heightNew = int(width * fabs(sin(radians(degree))) + height * fabs(cos(radians(degree))))
widthNew = int(height * fabs(sin(radians(degree))) + width * fabs(cos(radians(degree))))
matRotation = cv2.getRotationMatrix2D((width / 2, height / 2), degree, 1)
matRotation[0, 2] += (widthNew - width) / 2
matRotation[1, 2] += (heightNew - height) / 2
imgRotation = cv2.warpAffine(img, matRotation, (widthNew, heightNew), borderValue=(255, 255, 255))
cv2.imshow("img", img)
cv2.imshow("imgRotation", imgRotation)
cv2.waitKey(0)
image = cv2.imread("F:/opencvMedia/vedio/250.jpg")
remote(image,90)
python旋转照片不改变大小
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转载自blog.csdn.net/weixin_41967600/article/details/100809983
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