Principle Parallel viewing Cross-eyed viewing Anaglyph Stereo scope

Following two photos are one stereo photograph that you can see in 3D with cross-eyed viewing method. Then, let me tell you how to see the stereo photograph with cross-eyed viewing method. 1. At first, keep more than 15 inch between your display and your eyes. When viewing stereo photo, don't tilt your head. (keep horizontal level). 2. Look at the left side photograph with your right eye, and look at the right side photograph with your left eye. But it is difficult thing. So, following way is one of easy way. At first, place one of your finger at center of between display and your eyes, and then look at the top of the finger. (Refer to the next Fig.3) 3. You will see 3 photos behind your finger. Then, keep it, and focus on the center photograph slowly. Then you will see it in 3D. Can you see it?