MPO Files
MPO kitty! [1]
What are they
MPO Files are stereoscopic images, comprised of two overlapping 2D JPEG images. Each is used to represent the "left" and "right" view respectively, simulating a 3D effect. The 3D view of the Nintendo 3DS is created using MPO images. A device which does not support MPO cannot open and display the 3D image and may only display a JPG image version.
Some Digital Cameras can snap MPO Images, using two sensors spaced apart in the avarage distance of two human eyes.
How to make one
Python script
https://github.com/moritzmhmk/mpo.py
py mpo.py left.jpg right.jpg output.mpo