Please Please help with centering and overlaying an image

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MLnoob5340 2014-10-21

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https://ww2.mathworks.cn/matlabcentral/answers/159546-please-please-help-with-centering-and-overlaying-an-image

评论： Image Analyst 2014-10-21

I know this should be simple but I really cannot figure it out. How do I take two images and then have them display overlap each other at the central point (I have included a figure below)? These pictures are of different sizes. And I would like to do this without "hard-coding"

I have A = imread('A.png'); A = imread('B.png'); imshow (A) hold on; imshow (B)

But after this I have no idea how to center these :(

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采纳的回答

Image Analyst 2014-10-21

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/159546-please-please-help-with-centering-and-overlaying-an-image#answer_156082

在 MATLAB Online 中打开

copy_paste_image.m

Probably the easiest way is to copy and past the box at the proper location. You can easily find out the coordinates using the size function

[rows1, columns1, numberOfColorChannels1] = size(image1);
[rows2, columns2, numberOfColorChannels2] = size(image2);
col3 = int32(columns2/2 - columns1/2);
col4 = col3 + columns1 - 1;
row3 = int32(rows2/2 - rows1/2);
row4 = row3 + rows1 - 1;

Then paste in to each color channel. See my attached demo.