Mach Bands: Brightness Bands at a Gray Edge

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Curated archive entry based on published research. At a boundary between adjacent gray levels, observers can perceive extra bright and dark bands that are not present in the luminance profile. This describes a documented perceptual effect under the cited conditions, not an independent personal report or evidence that the underlying physical measurements changed.

SOURCE: https://pmc.ncbi.nlm.nih.gov/articles/PMC1994982/

TAGS: #curated #publishedresearch #perception

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