How to make Matlab imwarp function not crop the moving image after registration?

Question

Jihang Wang 2017-5-4

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/338773-how-to-make-matlab-imwarp-function-not-crop-the-moving-image-after-registration

回答： Chaitral Date 2017-5-9

I'm using Matlab R2016b to align two images with different dimensions. A (smaller size) is my reference image and B (larger size) is my moving image which I need to register it on A. The Matlab registration pipeline works well but when I use function imwarp to align A and B together, it seems that the registered image B has been cropped to the same size as A but what I want is keeping B as the original size with only overlapping area overlay with A. I attached the code below.

tformSimilarity = imregtform(B,A,'similarity',optimizer,metric);
RegisteredB = imwarp(B,tformSimilarity, 'OutputView', imref2d(size(A)));
imshowpair(fixed, IColorRegistered, 'falsecolor')

Thanks for any suggestion!