Before doing anything, one should read a general overview of stereo photography. There is a nice online chapter referenced here Chapter 12/Stereo Photography . Once you have some idea of the basics, you can move on to formulating ideas for how to actually create an anaglyph from a stereo pair. You are going to use the color filtering properties of glasses to give you a way to decode two images from a single image. A highly detailed description of how red/cyan images are formed is found here http://www.stereoscopy.com/3d-info/index.html. Another how to site that shows how to create Blue/Orange anaglyphs is here http://www.3dmagic.com/spacespex/create_spacespex.html . Unfortunately you don't want to make red/cyan or blue/orange, but red/blue anaglyphs. There is a difference.

I have found a reference to how to compute anaglyph images in print. Copies of this journal article will be made for the class:
Methods of pre-visualizing temporal parallax suitable for making multiplex holograms. II. Greyscale and colour anaglyphs made in Photoshop/sup TM/ Turnnidge, R.,Pizzanelli, D. Journal Imaging Science Journal Volume vol.45, no.1, pages 43-44. Publisher R. Photographic Soc.

Abstract
For pt. I see ibid., vol. 45, no. 1, p. 41-2 (1997). A useful technique for pre-visualizing a hologram image, for example, when one wants to see the effect of collaging a 3D subject onto a new 3D background prior to making the actual hologram, is to make anaglyph stereoscopic images. This paper describes a simple procedure for making anaglyph pairs using Adobe Photoshop DateOfPublication

For additional references, you may want to look at a variety of images. And, you might want to know where you can order glasses directly. Glasses will be provided to the class, but where I ordered them is given below:

• has some good images http://www.3d-web.com/nvt/ana2.htm
• Anaglyph comic books: http://home.earthlink.net/~r3dzone/Ana.html
• Good anaglyph image http://www.starosta.com/3dshowcase/3dglyphs/flute01A.jpg
• FAQ at Real-3D http://stereoscopy.com/reel3d/faq.html
• Where I ordered glasses Real-3D http://stereoscopy.com/reel3d/
• Anaglyph gallery http://www.rdrop.com/users/tblackb/3d_imag/3dIndex.htm
• Baseline spacing calculator (slow link) http://www.tisco.com/3d-web/papers/calc.htm
• Anaglyph producing software list. It doesn't look too promising. http://freeusers.digibel.be/~guru/3dsoft.html Dan Shelley Web site with links to Anaglyphs A very good site, with a political commentary on why red goes on the left, and blue on the right. http://www.studio3d.com/

Q: When do I need red/blue (anaglyph) 3-D glasses instead of the polarized (light gray) ones?

A: Anything printed on a page, displayed on a computer monitor, or projected with red/blue or red/green color fringing uses anaglyph (red/blue) 3-D glasses.

Q: Where can I find anaglyph comics, books, posters or images?

A: Comic book stores, from the 3-D Zone, P.O. Box 741159, L.A., CA 90004, Cygnus Graphic, Box 32461, Phoenix, AZ 85064.

Q: When did anaglyph imaging begin?

A: The principle of anaglyph presentation of 3-D images was first proposed in 1853 by Rollmann, but adapted to practical use by Ducos du Hauron in France in 1891.

Q: How do anaglyph images work?

A: They are based on the principle that when you look at a printed or projected color through a filter of the same color that that color essentially disappears. For example, a circle printed in red on a white background disappears when viewed through a red filter. Conversely, when the same color (red) is viewed through a complementary or opposite color (green or blue in this case) the printing will appear to be dark, or nearly black.

By printing the right eye image in red ink, and the left eye image superimposed upon it in blue ink, a 3-D image is seen when viewed through matching colored 3-D glasses. In this case the glasses would have to have a green or blue lens over the right eye, and a red lens over the left eye.

Copyright, Craig Wittenbrink, 1997-1998.

Back to the CE / CS Class Home Pages.
Back to the CE / CS Home Page.