如何在matlab中将图像分区为64块

% 读取图像
img = imread('example.jpg');

% 获取图像尺寸
[width, height] = size(img);

% 计算每个区块的尺寸
block_width = width / 8;
block_height = height / 8;

% 循环遍历每个区块
for i = 1:8
    for j = 1:8
        % 计算区块的位置和尺寸
        x = (i-1)*block_width + 1;
        y = (j-1)*block_height + 1;
        block_size = [block_width, block_height];
        
        % 裁剪区块
        block = imcrop(img, [x y block_width block_height]);
        
        % 保存区块
        filename = sprintf('block_%d_%d.jpg', i, j);
        imwrite(block, filename);
    end
end