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    Metadata details:
    filename: getOffsets.m
    path of file: ./repos/matlab_elastix/MelastiX_examples/elastix/private
    
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% example of getting translation offsets from an Elastix affine transform 	
%
% Rob Campbell - Basel 2016



%Generate fixed and moving images
fixedImage = peaks(2^8);
fixedImage = padarray(fixedImage,20); %Just to give prettier results

% circularly shifts first dimension by 10 and second dimension left by 5 pixelsn
myOffsets=[25 -15];
movingImage = circshift(fixedImage,myOffsets);


%Plot the fixed and moving images
clf

    
function getOffsets
% example of getting translation offsets from an Elastix affine transform 	
%
% Rob Campbell - Basel 2016



%Generate fixed and moving images
fixedImage = peaks(2^8);
fixedImage = padarray(fixedImage,20); %Just to give prettier results

% circularly shifts first dimension by 10 and second dimension left by 5 pixelsn
myOffsets=[25 -15];
movingImage = circshift(fixedImage,myOffsets);


%Plot the fixed and moving images
clf
subplot(2,2,1)
imagesc(fixedImage)
title('fixed image')

subplot(2,2,2)
imagesc(movingImage)
title('movingImage image')


%Perform an affine transform
p.Transform='AffineTransform';
[OUT,stats]=elastix(movingImage,fixedImage,[],[],'paramstruct',p);


%Show the result image and the difference between this and the original
subplot(2,2,3)
imagesc(OUT)
title('transformed image')
c=caxis;

subplot(2,2,4)
imagesc(double(OUT)-fixedImage)
title('transformed-fixed image')
caxis(c)


%report offset to screen
offsets = stats.TransformParameters{1}.TransformParameters(end