Over on O’Reilly Answers, Andrew Odewahn offers up a technique and a Processing script for creating “true” 3D photographs using anaglyphic stereoscopy. I tried these images on my 3D glasses and they look great.
DIY 3D photography with Processing
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Gareth Branwyn is a freelance writer and the former Editorial Director of Maker Media. He is the author or editor of over a dozen books on technology, DIY, and geek culture. He is currently a contributor to Boing Boing, Wink Books, and Wink Fun. And he has a new best-of writing collection and “lazy man’s memoir,” called Borg Like Me.
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but there are a few problems, specifically with the setting of the “stereo window”- the method of using only parts of the picture that overlap will result in unnatural effects around the edges of the image- the fire hydrant, for instance, appears in front of the plane of the screen, but when our brain sees the bottom edge cut of by the frame of the picture, it tries to push it back into the plane, causing confusion. A program such as Stereo Photo Maker:
http://stereo.jpn.org/eng/stphmkr/
can set this “window” automatically.
I’d recommend reading Ferwerda’s “World of 3-D” as a good intro to the technical aspects of 3D.
http://books.google.ca/books?id=mS0nPAAACAAJ&dq=world+of+3-d+ferwerda&hl=en&ei=jqsTTLW0EsKC8gaLltibCg&sa=X&oi=book_result&ct=result&resnum=1&ved=0CC8Q6AEwAA