如何约束Matlab的图像配准，使其仅假设旋转，没有平移？

% 加载图像
movingImage = imread('moving_image.jpg');
fixedImage = imread('fixed_image.jpg');

% 将图像转换为灰度图像
movingImageGray = rgb2gray(movingImage);
fixedImageGray = rgb2gray(fixedImage);

% 计算仿射变换矩阵
tform = imregtform(movingImageGray, fixedImageGray, 'affine');

% 创建只包含旋转的仿射变换
rotationOnlyTform = imref2d(size(fixedImageGray));
rotationOnlyTform.T = tform.T;
rotationOnlyTform.T(3,1:2) = 0;

% 应用约束进行图像配准
registeredImage = imwarp(movingImage, rotationOnlyTform, 'OutputView', imref2d(size(fixedImage)));

% 显示配准结果
figure;
imshowpair(fixedImage, registeredImage, 'montage');
title('配准前后对比');

% 保存配准后的图像
imwrite(registeredImage, 'registered_image.jpg');