在MATLAB中叠加2个图像时出错

Question

我正在运行以下代码来叠加两个图像

A = 'gaussians.png';
B = 'gaussiansContour.png';

imAlphaData = repmat(0:1/size(B,2):1-1/size(B,2),size(B,1),1);

hf = figure('units','normalized','position',[.2 .2 .6 .6]);
ax1 = subplot(2,3,1);
ibg = image(A);
axis off;
title('Background');
ax2 = subplot(2,3,4);
iim = image(B);
axis off;
title('Image without transparency yet');

ax3 = subplot(2,3,[2:3, 5:6]);
ibg2 = image(B);
axis off;
hold on;
%   Overlay the image, and set the transparency previously calculated
iim2 = image(A,'XData',[30 50],'YData',[10 30]);
set(iim2,'AlphaData',imAlphaData);
title(sprintf('Using transparency while overlaying images:\nresult is multiple image objects.'));

但我遇到了一个错误：

Error using image
Numeric or logical matrix required for image CData

Error in superimpose (line 8)
ibg = image(A);

有人可以告诉我要改变什么以便我的代码正常运行吗？

Answer 1

image采用像素数据矩阵，而不是字符串。使用imread

image(imread('gaussians.png'))

Answer 2

尝试：

A = imread('gaussians.png');
B = imread('gaussiansContour.png');

而不是你的：

A = 'gaussians.png';
B = 'gaussiansContour.png';