SIS - Single
Image Stereograms
SIRDS -
Single Image Random Dot Stereograms
HIS (hidden image stereogram)
SIS, SIRDS,
HIS, are the stereograms most people are familiar with due to
wide commercial exposure. This is the kind of stereogram where
a shape is hidden in a field of dots or patterns. It is
also the kind you are most likely to run into on other Internet
sites devoted to stereograms.
If you need some fast stereogram viewing practice click
here: |