Have you ever seen those cool circular panorama that resembles the wide angle fish eye lenses but more spherical creating a little plane effect? Well, they are called stereographics. I stumbled upon this technique a few years ago and I find it really interesting. The sphere like effect of the image most especially done with two different images combined into one circular panorama stereo always stir up my visual and I want to try it myself with all my panorama. But you don't necessarily need panorama to create stereo, you may use any image of any size.
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Step 1: Choose an Image.
You can use any image of any size you want but I prefer panoramas. Panoramas have just the right characteristic for stereographic projections, mainly because panorama provides a three dimensional effect and it extends to that it is better to apply 360 degrees.
Step 2: Open Image to Photoshop.
I am using CS4.
Step 3: Edit Your Image.
You need to copy the end of the image to blend it to the other side so that when we apply 360 degrees polar coordinates, it would look more natural.
The sample would show you an image that was not edited prior to applying polar coordinates.
Step 4: Copy One End of Your Image and Paste It to the Other End.
Step 5: Rotate Image.
Rotating image actually depends how you would want the sphere to look like. If you want the object inward or outward. If you want the object of your image to go outward then you would need to rotate the image 180 degrees.
Step 6: Resize the Image.
Make the image square by resizing and making its height and width equal.