slit 4d

split = reshape (cropVol, size (cropVol,1), size (cropVol,2), size (cropVol,3)*size (cropVol,4)); This would give you a 3D volume in which the 4th dimension has been spread out onto the third dimension. or perhaps you want. split = squeeze (num2cell (cropVol, [1 2 3])); This would give you a cell array in which each element was a 3D slice. singapore 4d prize