Kindly go through the following example illustrated at link.
imshow(['AT3_1m4_' num2str(frame, '%02.0f') '.tif'])
As videofig is used to set up the viewer and not to display, you need to put redraw(1,v2); (Function code is below) to display images. (Reason for getting blank figure with axis).
function redraw(frame, vidObj)
f = vidObj.read(frame);
axis image off
videofig(v2.NumFrames, @(frm) redraw(frm,v2));
If you wish to put images with it, try to merge images using imfuse.
Hope it helps!!