3D image alignment in a stack

Hi,

I have a stack of images in a 3D matrix (128x128x500) that I want to align.

I tried:

tiff_stack3=imregister(tiff_stack2,tiff_stack2(:,:,1),'translation','RegularStepGradientDescent','MeanSquares');
sliceViewer(tiff_stack3)

where tiff_stack2 is the matrix that I want to align.

However, Matlab dropped me an error like this:

Error using imregtform>parseInputs (line 268)

The value of 'OptimConfig' is invalid. Invalid optimizer configuration object specified.

Error in imregtform (line 124)

parsedInputs = parseInputs(varargin{:});

Error in imregister (line 119)

tform = imregtform(varargin{:});

Error in Diawork3d (line 19)

tiff_stack3=imregister(tiff_stack2,tiff_stack2(:,:,1:3),'translation','RegularStepGradientDescent','MeanSquares');

Does anyone have any clue about how to align a stack of images using a code? Thank you

Answer 1

[Matt J]

N=size(tiff_stack2,3);

[opt,metric]=imregconfig('monomodal');

for i=1:N

 tiff_stack3{i}=imregister(tiff_stack2(:,:,i),tiff_stack2(:,:,1),'translation',opt,metric);

end

tiff_stack3=cat(3,tiff_stack3{:});

[Irene Fernandez Ugidos]

Thank you so much!

It worked beautifully as follows:

N=size(tiff_stack2,3);
[opt,metric]=imregconfig('monomodal');

for i=1:N
 tiff_stack3(:,:,i)=imregister(tiff_stack2(:,:,i),tiff_stack2(:,:,1),'translation',opt,metric);
end

sliceviewer(tiff_stack3)