Registation of two images in '.mat' format

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AUWAL ABUBAKAR
AUWAL ABUBAKAR 2020-10-18
评论： AUWAL ABUBAKAR 2020-10-19
Good day all,
Could someone please help me on how to register two images in '.mat format. Each .mat variable is 36x129 with each element representing a distance value. When plotted using 'surf plot' it gives a chest surface images.
I would like to register the two surafces and obtain the difference in the surafce positions. Below is the code i used so far but returns a warning.. ' Registration failed because optimization diverged'
[optimizer, metric] = imregconfig('multimodal');
img_reg = imregister(img1, img2, 'affine', optimizer, metric);
imshowpair(img2, img_reg,'falsecolor');
Attached are the variables and the suraface image obtained when surf plot is used
Thanks

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Matt J
Matt J 2020-10-18
With monomodal registration, it works fine for me,
[optimizer, metric] = imregconfig('monomodal');
but I should mention that the two images look almost identical to begin with.
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Matt J
Matt J 2020-10-18
编辑：Matt J 2020-10-18
Because you have done an affine registration, the position error is different for every point, but you can obtain the estimated tform relating the images using imregtform
tform = imregtform(img1, img2, 'affine', optimizer, metric);

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