Mach band


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Mach band

(mahk),
a relatively bright or dark band perceived in a zone where the luminance increases or decreases rapidly.

Mach band

(mahk band)
A relatively bright or dark band perceived in a zone where the luminance increases or decreases rapidly.

Mach,

Ernst Waldfried Josef Wenzel, Austrian scientist, 1838-1916.
Mach band - a relatively bright or dark band.
Mach number - the ratio between the speed of an object moving through a fluid medium and the speed of sound in the same medium.
References in periodicals archive ?
This is similar to the Mach band effect, but it covers a larger area than the Mach effect, which creates only a narrow bandlike effect.
Hence, a snake may focus more on the border, not because Mach bands are perceived, but simply because the border has more information than does either of the adjacent panels.
Inasmuch as Mach bands are our visual analogue, we suggest that Mach-band-like effects arise in the infrared system.
In the absence of language, it is extremely difficult to confirm visual or infrared Mach bands in behavioral experiments, as nonverbal data can provide only indirect evidence subject to alternative interpretation.