Opening 4D image stack using sliceviewer

Hello all,

I'm working on a 4D MRI brain data set. Data set contains 20 slices (3rd dimension) of brain images acquired at 32 time points (4th dimension) (Image dimension will be I(256,256,20,32)). I want to open this data set as 2 stacks with sliders. One stack should contain first timepoint of all slices (I(:,:,:,1)) and other stack should contain all timepoints of slice opened in the previously mentioned stack. Also, the second stack should be updated in the same figure when I change the slice in the first stack. I have written the code mentioned below using listener to execute this.

global I %%% I is the 4D image

Dyn = squeeze(I (:,:,:,1));

f1 = figure('Name','Slice-wise images (Phases)');

s = sliceViewer(Dyn,'Colormap',jet,'parent',f1);

addlistener(s,'SliderValueChanging',@allevents);

function allevents(~,evt)

evname = evt.EventName;

global I

switch(evname)

case{'SliderValueChanging'}

x1 = mat2str(evt.CurrentValue);

x2= str2double(x1);

T4_1 = squeeze(I(:,:,x2,:));

f5 = figure('Name','Temporal images (Phases)');

s4_1 = sliceViewer(T4_1,'Colormap',gray,'parent',f5);

end

end

The second stack is updating with changing the slices, but everytime when I change the slice, a new figure window is opening. I would like to update it in the same figure itself. In short, whenever I change the slice number in the first stack, the second stack should also get updated in f5.

Could somebody help me to solve this?

Thanks in advance