copyrighted work by John Toeppen

STEREO VIEWING METHODS are numerous and changing.  All methods require a source stereo pair that is converted for viewing.  This conversion is best done by the end user and not the content generator (allowing more of us to post with less hassel).  End users need software that recognizes the specially named files and opens them on demand.  The image file is a JPEG (or JPG) image with the right image saved on the left side.  Any JPEG having the RIGHT IMAGE IS ON THE LEFT can be opened using any good 3D viewing software.  Such images are usually renamed to have a file extension of JPS  (.jps) to engage the viewing software.  Good viewing software will open the JPS pair and convert it to your preferred viewing method.

DepthCharge is free and able to convert
PokeScope viewing software is free (at first) but has a zoom and pan

This page shows digital images that are already converted to allow side by side comparison.  The purple peppers were found in Arcata California's farmers market one Saturday morning in November 2001 using a single Kodak DC 240.

Crosseye pair,  sized to the web at  201K via a  30% jpg compression This image size uses the full width of a 17" monitor for a pair.


click here for JPS image web page

Parallel viewing allows 2.5" between image centers before going "walleyed" (eyes divergent).  This view is 3.5" and is suited for a viewer with wedge. This viewing method does not uses all of the pixels available on your monitor. (unless you use a .pokescope viewer)

Color Anaglyph  Some color problems with all colors except yellow and brown. 20%jpg 70K
click image to enlarge

Gray Anaglyph images are effectively B&W stereo anaglyph.  All of the image color is gone and a reasonably good B&W show good stereo.
click image to enlarge

By cleverly merging the gray and color anaglyph one can get a suggestion of color.  Color channels can be used and time spent - but this image is not well suited for anaglyph because of too much red.   Agreat color anaglyph usually requires careful subject selection, technique, or luck.
click image to enlarge

Interlaced pairs are used  for shuttered glasses.  Every other line is used for the left image while the right shutter is closed.  The right image also uses alternate lines.    This image is compressed to 200K shows slight problems with image crosstalk due to the compression.  It is better to interlace from separated images (JPS pairs) for superior image quality.   The full color viewing does justice to this subject but the blocky compression is marginal. 

link to interlaced image

Web compressed and sized jpg 20%  These images don't crosstalk because they are stored side by side.  These are "full sized pairs" where each image will fill a 17" monitor. You have to convert an image like this using software.


This  90% jpg  665K image is only slightly compressed for burning to CD.    These are very slow to load and take up too much web site space.   This sort of image makes the best use of today's hardware with a image size of 1150 x 900 pixels x 2.  If one were using twin projectors with polarizers this would project very well   Or you could use twin monitors or a viewer that requires no glasses.

Link 90% to image THE BIGGEST  IS  OFTEN  BEST!

Need more JPS images?  Tired of slow connections?
Buy images on CDs!  Check out the VR Collection:

The Virtual Reality Collection

web  links
software, hardware, & images
copyright 2002
John Toeppen