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- Superimposition abstract "In graphics, superimposition is the placement of an image or video on top of an already-existing image or video, usually to add to the overall image effect, but also sometimes to conceal something (such as when a different face is superimposed over the original face in a photograph). This technique is used in cartography to produce photomaps by superimposing grid lines, contour lines and other linear or textual mapping features over aerial photographs.Superimposition of 2D images containing correlated periodic grid structures may produce moiré patterns. Superimposition of two correlated layers comprising parallel lines or curves may give rise line moiré patterns. The movement of one of the layers results in a faster movement of the line moiré superimposition image. Such optical acceleration is known as moiré speedup (check for the formulas of optical speedup for curved patterns). When superimposing two identical layers comprising randomly spaced parallel lines, at a small angle or with a small scaling difference random line moiré patterns, namely line Glass patterns (after Leon Glass, 1969) appear. Similarly, when superimposing two identical layers of randomly scattered dots at a small angle or with a small scaling difference random dot Glass patterns, namely random dot moiré, appears. When one of the layers embeds complex shapes, such as sequences of symbols forming a text, and another layer contains parallel lines or curves, the superimposition image may give rise to magnified shapes, called shape moiré patterns. Superimposition during sound recording and reproduction (commonly called overdubbing) is the process of adding new sounds over existing without completely erasing or masking the existing sounds. Some reel-to-reel tape recorders of the mid 20th century provided crude superimposition facilities that were implemented by killing the high-frequency AC feed to the erase head while recording as normal via the read-write head.".
- Superimposition wikiPageExternalLink 070212-random-moire.
- Superimposition wikiPageExternalLink 070227-random-line-moire.
- Superimposition wikiPageExternalLink .VsS6WLSZ5mA.
- Superimposition wikiPageID "2060750".
- Superimposition wikiPageLength "2774".
- Superimposition wikiPageOutDegree "17".
- Superimposition wikiPageRevisionID "705473625".
- Superimposition wikiPageWikiLink Aerial_photography.
- Superimposition wikiPageWikiLink Cartography.
- Superimposition wikiPageWikiLink Category:Artistic_techniques.
- Superimposition wikiPageWikiLink Category:Cartography.
- Superimposition wikiPageWikiLink Category:Printing.
- Superimposition wikiPageWikiLink Category:Printmaking.
- Superimposition wikiPageWikiLink Contour_line.
- Superimposition wikiPageWikiLink Graphics.
- Superimposition wikiPageWikiLink Image.
- Superimposition wikiPageWikiLink Leon_Glass.
- Superimposition wikiPageWikiLink Line_moiré.
- Superimposition wikiPageWikiLink Moiré_pattern.
- Superimposition wikiPageWikiLink Overdubbing.
- Superimposition wikiPageWikiLink Photograph.
- Superimposition wikiPageWikiLink Shape_moiré.
- Superimposition wikiPageWikiLinkText "Superimposition".
- Superimposition wikiPageWikiLinkText "process".
- Superimposition wikiPageWikiLinkText "super".
- Superimposition wikiPageWikiLinkText "super-imposition".
- Superimposition wikiPageWikiLinkText "superimposed".
- Superimposition wikiPageWikiLinkText "superimposing".
- Superimposition wikiPageWikiLinkText "superimposition".
- Superimposition wikiPageUsesTemplate Template:For.
- Superimposition wikiPageUsesTemplate Template:Sections.
- Superimposition subject Category:Artistic_techniques.
- Superimposition subject Category:Cartography.
- Superimposition subject Category:Printing.
- Superimposition subject Category:Printmaking.
- Superimposition type Art.
- Superimposition type Infographic.
- Superimposition type Science.
- Superimposition type Technique.
- Superimposition comment "In graphics, superimposition is the placement of an image or video on top of an already-existing image or video, usually to add to the overall image effect, but also sometimes to conceal something (such as when a different face is superimposed over the original face in a photograph).".
- Superimposition label "Superimposition".
- Superimposition sameAs Q7643452.
- Superimposition sameAs Fyrimynd:Superimpose.
- Superimposition sameAs סופראימפוזיציה.
- Superimposition sameAs m.06jb21.
- Superimposition sameAs Superimposition.
- Superimposition sameAs Q7643452.
- Superimposition wasDerivedFrom Superimposition?oldid=705473625.
- Superimposition isPrimaryTopicOf Superimposition.