MATLAB: How to Retrieve Intensity-Based Registration Data (with imregister) to re-Perform Registration? -

i thought should simple task, can't find way it:

i using 'imregister' (matlab) register 2 medical x-ray images. ensure best registration outcome possible, use image processing techniques such contrast enhancement, blackening of objects different between images , cropping. outcome of seems quite satisfying.

now, want perform exact same registaration on original images, can display 2 original images automatically in alignment.

i think output parameter such tform serves purpose of performing registration on 2 images, unfortunately 'imregister' not provide such parameter, far know.

it provide output spatial referencing object r_reg might answer, still haven't figured out how use re-preform registration.

i should mention since dealing medical x-ray images on non of feature-detecting algorithms seem work enough perform registration, can use intensity-based (as opposed feature-based) registration, , therefore using 'imregister'.

does know how can accomplish this?

thanks! noga

so make answer out of comment, there 2 things can depending on matlab release using:

option 1: r2013a , earlier

i suggest modifying built-in imregister function forcing tform output , save function under name.

for example:

function [movingreg,rreg,tform] = imregister2(varargin) 

save that, add path , you're go. if type edit imregister notice 1st line calls imregtform geometric transformation required, while last line calls imwarp, apply geometric transformation. leads option 2.

option 2: r2013b , later

well in case can directly use imregtform tform object , use imwarpto apply it. easy isn't it?

hope makes things clearer!