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Romans saw deformity as comical and believed that such images could be used to deflect the evil eye. [30] In Europe, apotropaic figureheads carved onto the prow of sailing ships are considered to have been a replacement for the sacrifice of a thrall during the Age of Invasions by Saxon and Viking sailors, to avoid bad luck on the voyage.
Iconoclasm. Icon of the Triumph of Orthodoxy depicting the "Triumph of Orthodoxy" over iconoclasm under the Byzantine empress Theodora and her son Michael III, late 14th to early 15th century. Iconoclasm (from Greek: εἰκών, eikṓn, 'figure, icon' + κλάω, kláō, 'to break') [ i] is the social belief in the importance of the ...
The eye of the god Horus, a symbol of protection, now associated with the occult and Kemetism, as well as the Goth subculture. Eye of Providence (All-Seeing Eye, Eye of God) Catholic iconography, Masonic symbolism. The eye of God within a triangle, representing the Holy Trinity, and surrounded by holy light, representing His omniscience. Heptagram
Optical illusion is also used in film by the technique of forced perspective . Op art is a style of art that uses optical illusions to create an impression of movement, or hidden images and patterns. Trompe-l'œil uses realistic imagery to create the optical illusion that depicted objects exist in three dimensions.
Optical coherence tomography. A high-resolution spectral-domain OCT scan (3×3 mm) of a dry age-related macular degeneration eye showing geographic atrophy and drusen in macula on both cross-sectional and en face fly-through. Optical coherence tomography ( OCT) is an imaging technique that uses interferometry with short- coherence-length light ...
t. e. Visual rhetoric is the art of effective communication through visual elements such as images, typography, and texts. Visual rhetoric encompasses the skill of visual literacy and the ability to analyze images for their form and meaning. [ 1] Drawing on techniques from semiotics and rhetorical analysis, visual rhetoric expands on visual ...
Cone cells or cones are photoreceptor cells in the retinas of vertebrates' eyes. They respond differently to light of different wavelengths, and the combination of their responses is responsible for color vision. Cones function best in relatively bright light, called the photopic region, as opposed to rod cells, which work better in dim light ...
Entoptic phenomena (from Ancient Greek ἐντός (entós) 'within' and ὀπτικός (optikós) 'visual') are visual effects whose source is within the human eye itself. (Occasionally, these are called entopic phenomena, which is probably a typographical mistake.) In Helmholtz 's words: "Under suitable conditions light falling on the eye ...