👁️ Perception & Illusions d'Optique

Motion AftereffectStare at a rotating spiral for 20 seconds (adaptation phase), then stop — the static spiral… Colour Contrast IllusionsThree classic colour perception illusions: simultaneous lightness contrast, Mach bands at… Optical Illusions — Visual Perception GalleryInteractive gallery of 8 classic optical illusions: Müller-Lyer, Ebbinghaus, Café Wall,… Gestalt Grouping PrinciplesNewInteractive demos of how the visual system organises elements into wholes: proximity,… Retinal Photoreceptor AdaptationNewRod and cone phototransduction: photons activate rhodopsin → G-protein cascade → cGMP… Color Constancy & Chromatic AdaptationNewVon Kries chromatic adaptation: scale LMS cone signals by illuminant estimate. Retinex…