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Contrast (vision)

Contrast is the difference in luminance or color that makes an object (or its representation in an image or display) distinguishable from a background. Human vision is more sensitive to relative differences than to absolute luminance, so perceived appearance can remain fairly stable despite large changes in illumination.

Products, Contrast sensitivity & Biological contrast sensitivity

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Overview

Biological contrast sensitivity

Quantifications

Contrast sensitivity

Contrast threshold

Advanced semantic analysis

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Map overview Semantic statistics

Contrast (vision)

Nodes58
Edges57
Triples5
Avg. degree1.97
Density0.034483
Components1

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Important terminology Word statistics

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Important terminology

contrast image sensitivity luminance spatial frequency used displaystyle visual acuity also background threshold average vision maximum weber cpd bars light

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
cataractsinstance ofFactors0.80text
diabetic retinopathy also reduce contrast sensitivityinstance ofFactors0.80text
age-related macular degenerationinstance ofincluding retinal disorders0.80text
lighting engineeringinstance ofThe resulting data have been used extensively in areas0.80text
road safety.A separate study by Knoll et al investigated thresholds for point sources by requiring subjects to vary the brightness of the source to find the level at which it was just visibleinstance ofThe resulting data have been used extensively in areas0.80text

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