0, 'rats/', 'rats', 'png', 5 );   % write 1
  imwrite2( I, 1, 0, 'rats/', 'rats', 'png', 5 );          % write 5
  I2 = imwrite2( [], 1, 0, 'rats/', 'rats', 'png', 5 );    % read 5
  I3 = fevalImages(@(x) x,{},'rats/','rats','png',0,4,5);  % read 5

 EXAMPLE - multiple splits
  load images; I=images(:,:,1:10); clear IDXi IDXv t video videos images;
  imwrite2( I, 1, 0, 'rats', 'rats', 'png', 5, 2, 0 );      % write 10
  I2=imwrite2( [], 1, 0, 'rats', 'rats', 'png', 5, 2, 0 );  % read 10

 See also FEVALIMAG