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Image subtraction

Image subtraction or pixel subtraction or difference imaging is an image processing technique whereby the digital numeric value of one pixel or whole image is subtracted from another image, and a new image generated from the result. This is primarily done for one of two reasons – levelling uneven sections of an image such as half an image having a shadow…

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Image subtraction

Nodes17
Edges16
Triples5
Avg. degree1.88
Density0.117647
Components1

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Image subtraction

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see also · 2
Image subtraction → Blink, Transient Factory

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image subtraction images imaging processing one two difference technique another primarily brightness color features made used known objects target algorithms

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
half an image having a shadow on itinstance oflevelling uneven sections of an image0.80text
or detecting changes between two imagesinstance oflevelling uneven sections of an image0.80text
time-domain astronomyinstance ofbut is essential to ensure good subtraction of static features.This is commonly used in fields0.80text
Image subtractionsee alsoBlink0.60section
Image subtractionsee alsoTransient Factory0.60section

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