MATLAB提示矩阵维度必须一致

问题遇到的现象和发生背景

问题相关代码，请勿粘贴截图

运行结果及报错内容

我的解答思路和尝试过的方法

我想要达到的结果

function dr = Dice_Ratio(SEG, GT)
% SEG, GT are the binary segmentation and ground truth areas, respectively.
% dice ratio
dr = 2.*double(sum(uint8(SEG(:)&GT(:)./double(sum(uint8(SEG(:)+sum(uint8(GT(:);
end