如何计算缩放后旋转图像的位置

import cv2
import numpy as np

def rotate_and_scale_image(image, scale_factor, angle):
    # 获取图像的尺寸
    height, width = image.shape[:2]
    
    # 计算变换中心
    center = (width / 2, height / 2)
    
    # 获取旋转矩阵
    rotation_matrix = cv2.getRotationMatrix2D(center, angle, scale_factor)
    
    # 应用仿射变换
    rotated_scaled_image = cv2.warpAffine(image, rotation_matrix, (width, height))
    
    return rotated_scaled_image

# 读取图像
image = cv2.imread('path_to_your_image.jpg')

# 设置缩放因子和旋转角度
scale_factor = 1.5
angle = 30  # 单位为度

# 进行缩放和旋转
result_image = rotate_and_scale_image(image, scale_factor, angle)

# 显示结果
cv2.imshow('Rotated and Scaled Image', result_image)
cv2.waitKey(0)
cv2.destroyAllWindows()