用numpy/torch旋转图片的内圆

活不多说，先上图

img = cv2.imread('OIP-C.jpeg',cv2.IMREAD_COLOR)
imgRGB = cv2.cvtColor(img,cv2.COLOR_BGR2RGB)
dst = cv2.resize(imgRGB, (400, 400))
Image.fromarray(dst)

 Image.fromarray(rotating_inscribed_circle(dst,np.pi*2/3,120))

方法代码：

import numpy as np
def rotating_inscribed_circle(img,radian,r