making volume from multiple slices

hi everyone. i have 429 slices of ct and i want to make a volume(called pic_3D in the code) from them. each image is 625*696. i have written the code bellow, but it still has the error wich is attached. and also i dont know why the im(number of images in the folder) in the workspace is 269, it should be 429

surf_read_dir='C:\Users\asus\Desktop\more crop\';

files=dir('C:\Users\asus\Desktop\more crop\*.jpg');

for im=1:size(files)

fdir = strcat(surf_read_dir , files(im).name);

slice_im = load(fdir);

pic = imread(fdir);

for i=1:600

frt_data(im,:,i)=pic(i,:,1);

end

pic_3D(:,:,im) = pic(:,:,1);

end

Answer 1

[KALYAN ACHARJYA]

result=cat(Depth_size,slice1,slice2,slice3....);

Depth_size must be same as number of slices to be add

Say 3 slices then

result_3d=cat(3,slice1,slice2,slice3);

Look at multidimentional array, you may get more idea.

[talayeh ghodsi]

thanks for your answer, but could you tell how can i put all 429 slices in your code instead of 'slice'?

result=cat(429,slice1,slice2,slice3....);

[KALYAN ACHARJYA]

%Read all slices and save in structure array , like array_data={1,429}

Next

for i=1:length(array_data);
result(:,:,i)=cat(i,array_data{i});
%.................^  here we have to think about  
end

%Please note, I did not tried it, may it works with minor modifications

Or

see reshape function