Editing Moiré pattern (section)

===Shape moiré===
{{main|Shape moiré}}

Shape moiré is one type of moiré pattern demonstrating the phenomenon of moiré magnification.<ref>{{cite conference
| title = Optical Inspection of Arrays and Periodic Structures Using Moire Magnification
| first1 = M.C. | last1 = Hutley
| first2 = R.F. | last2 = Stevens
| conference = IEE Colloquium, Microengineering in Optics and Optoelectronics
| date = 1999-11-16
| url = http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=IEESEM001999000187000008000001&idtype=cvips&gifs=yes
}}</ref><ref>{{cite journal
 |title      = Properties of Moiré Magnifiers
 |first1     = Hala
 |last1      = Kamal
 |first2     = Reinhard
 |last2      = Völkel
 |first3     = Javier
 |last3      = Alda
 |journal    = Optical Engineering
 |volume     = 37
 |issue      = 11
 |pages      = 3007–3014
 |date       = November 1998
 |url        = https://www.suss-microoptics.com/suss-microoptics/technical-publications/Moire_Magnifiers.pdf
 |archive-url = https://web.archive.org/web/20201108012304/https://www.suss-microoptics.com/suss-microoptics/technical-publications/Moire_Magnifiers.pdf
 |url-status = usurped
 |archive-date = November 8, 2020
 |access-date = 2021-03-30
 |doi        = 10.1117/1.601889
 |bibcode    = 1998OptEn..37.3007K
}}</ref> 1D shape moiré is the particular simplified case of 2D shape moiré. [[Dimension|One-dimensional]] patterns may appear when superimposing an [[Opacity (optics)|opaque]] layer containing tiny horizontal [[Transparency and translucency|transparent]] lines on top of a layer containing a complex shape which is periodically repeating along the [[Cartesian coordinate system|vertical axis]].

Moiré patterns revealing complex shapes, or sequences of symbols embedded in one of the layers (in form of periodically repeated compressed shapes) are created with shape moiré, otherwise called ''band moiré'' patterns. One of the most important properties of shape moiré is its ability to magnify tiny shapes along either one or both axes, that is, stretching. A common 2D example of moiré magnification occurs when viewing a [[chain-link fence]] through a second chain-link fence of identical design.  The fine structure of the design is visible even at great distances.