Editing Autostereogram (section)

==Terminology==
*[[stereoscopy|Stereogram]] and autostereogram
:''Stereogram'' was originally used to describe as a pair of 2D images used in [[stereoscope]] to present a 3D image to viewers. The "auto" in ''autostereogram'' describes an image that does not require a stereoscope. The term ''stereogram'' is now often used interchangeably with ''autostereogram''.<ref name="name_stereogram">Horibuchi, S. (1994). ''Stereogram'', pp. 8–10, 22, 32, 36. San Francisco: Cadence Books. {{ISBN|0-929279-85-9}}. The term ''stereogram'' is used as a synonym of stereo pair, autostereogram, and random dot autostereogram throughout the book.</ref> Dr. Christopher Tyler, inventor of the autostereogram, consistently refers to single image stereograms as autostereograms to distinguish them from other forms of stereograms.<ref name="tyler_cadence"/>{{quote needed|date=September 2012|reason=The title of the cited article doesn't: "The Birth of Computer Stereograms for Unaided Stereovision"}}
*[[Random dot stereogram]] (RDS)
:Random dot stereogram, describes a pair of 2D images containing random dots which, when viewed with a stereoscope, produced a 3D image. The term is now often used interchangeably with random dot autostereogram.<ref name="beyond3d"/><ref name="kinsman"/>
*Single image stereogram (SIS)
:Single image stereogram (SIS). SIS differs from earlier stereograms in its use of a single 2D image instead of a stereo pair and is viewed without a device. Thus, the term is often used as a synonym of ''autostereogram''. When the single 2D image is viewed with proper eye convergence, it causes the brain to fuse different patterns perceived by the two eyes into a virtual 3D image without, hidden within the 2D image, the aid of any optical equipment. SIS images are created using a repeating pattern.<ref name="tyler_cadence"/><ref name="OpenUniversity">Open University Course Team (2008) ''The Science of the Senses'', p. 183. Open University. {{ISBN|0-7492-1450-3}}.</ref> Programs for their creation include [[Mathematica]].<ref>Donald Row, Talmage James Reid (2011). ''Geometry, Perspective Drawing, and Mechanisms'', p. 142. {{ISBN|978-981-4343-82-4}}.</ref><ref>Heikki Ruskeepää (2009). ''Mathematica Navigator: Mathematics, Statistics, and Graphics'', p. 146. {{ISBN|978-0-12-374164-6}}. [http://www.mathematica-journal.com/issue/v5i1/columns/maeder/index.html] {{Webarchive|url=https://web.archive.org/web/20130801070221/http://www.mathematica-journal.com/issue/v5i1/columns/maeder/index.html|date=2013-08-01}}.</ref>
*Random dot autostereogram/hidden image stereogram
:Is also known as '''single image random dot stereogram''' ('''SIRDS'''). This term also refers to autostereograms where the hidden 3D image is created using a random pattern of dots within one image,<ref name="OpenUniversity"/> shaped by a [[depth map]] within a dedicated stereogram rendering program.<ref name="L&P">Gene Levine, Gary W. Priester (2008). ''Hidden Treasures: 3-D Stereograms'', {{page needed|date=October 2012}}. {{ISBN|978-1-4027-5145-5}}.</ref>
*Wallpaper autostereogram/object array stereogram/texture offset stereogram
:Wallpaper autostereogram is a single 2D image where recognizable patterns are repeated at various intervals to raise or lower each pattern's perceived 3D location in relation to the display surface. Despite the repetition, these are a type of single image autostereogram.
*[[ASCII stereogram|Single image random text stereogram]] (SIRTS)
:A single image random text ASCII stereogram is an alternative to SIRDS using random [[ASCII]] text instead of dots to produce a 3D form of [[ASCII art]].
*Map textured stereogram
:In a map textured stereogram, "a fitted texture is mapped onto the depth image and repeated a number of times" resulting in a pattern where the resulting 3D image is often partially or fully visible before viewing.<ref name="L&P"/>