Please Please help with centering and overlaying an image

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MLnoob5340
MLnoob5340 le 21 Oct 2014
Commenté : Image Analyst le 21 Oct 2014
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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Image Analyst
Image Analyst le 21 Oct 2014
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.
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MLnoob5340
MLnoob5340 le 21 Oct 2014
Thank you very much! I am just confused on the definition of hard-coding--I'll look into it
Image Analyst
Image Analyst le 21 Oct 2014
Well go ahead and mark it "Accepted" then. Thanks. Hard coding woul dbe where you specify the actual numerical coordinates, like
image2(200:300, 500:550) = image1;
It would always put it at those column and row locations and not adapt to the size of image1.

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