Image EnhancementRadiographic Image EnhancementImage Processing, Computer-AssistedAlgorithmsContrast SensitivityOptical IllusionsLightingLightPhotometryColorPsychophysicsVisual PerceptionImage Interpretation, Computer-AssistedColor PerceptionPhotonsPhotic StimulationIllusionsPattern Recognition, VisualColor VisionFluorescent DyesAdaptation, OcularImaging, Three-DimensionalSpectrometry, FluorescencePupil DisordersFluorescenceReproducibility of ResultsQuantum DotsPhotobleachingSensory ThresholdsContrast MediaFlicker FusionForm PerceptionRadiographic Image Interpretation, Computer-AssistedVision, OcularSemiconductorsSensitivity and SpecificityTime FactorsLuminescent ProteinsVisual CortexOptics and PhotonicsBleaching AgentsPerceptual ClosureGreen Fluorescent ProteinsMicroscopy, FluorescenceModels, TheoreticalVisual PathwaysOrientation