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  2. Chiaroscuro - Wikipedia

    en.wikipedia.org/wiki/Chiaroscuro

    The use of dark subjects dramatically lit by a shaft of light from a single constricted and often unseen source, was a compositional device developed by Ugo da Carpi (c. 1455 – c. 1523), Giovanni Baglione (1566–1643), and Caravaggio (1571–1610), the last of whom was crucial in developing the style of tenebrism, where dramatic chiaroscuro ...

  3. Checker shadow illusion - Wikipedia

    en.wikipedia.org/wiki/Checker_shadow_illusion

    The image depicts a checkerboard with light and dark squares, partly shadowed by another object. The optical illusion is that the area labeled A appears to be a darker color than the area labeled B. However, within the context of the two-dimensional image, they are of identical brightness, i.e., they would be printed with identical mixtures of ...

  4. Tenebrism - Wikipedia

    en.wikipedia.org/wiki/Tenebrism

    John the Baptist (John in the Wilderness), by Caravaggio, 1604, in the Nelson-Atkins Museum of Art, Kansas City. Tenebrism, from Italian tenebroso ('dark, gloomy, mysterious'), also occasionally called dramatic illumination, is a style of painting using especially pronounced chiaroscuro, where there are violent contrasts of light and dark, and where darkness becomes a dominating feature of the ...

  5. Low-key photography - Wikipedia

    en.wikipedia.org/wiki/Low-key_photography

    Example of a low-key photograph. Low-key photography is a genre of photography consisting of shooting dark-colored scenes by lowering or dimming the "key" or front light illuminating the scene (low-key lighting), and emphasizing natural [1] or artificial light [2] only on specific areas in the frame. [3]

  6. Negative (photography) - Wikipedia

    en.wikipedia.org/wiki/Negative_(photography)

    A positive image is a normal image. A negative image is a total inversion, in which light areas appear dark and vice versa. A negative color image is additionally color-reversed, [6] with red areas appearing cyan, greens appearing magenta, and blues appearing yellow, and vice versa.

  7. Night in paintings (Western art) - Wikipedia

    en.wikipedia.org/wiki/Night_in_paintings...

    The sharp contrast of the divine light against dark is a tool used to make the scene appear more profound for its viewers. [ 20 ] : 232 [ 21 ] London's National Gallery describes Geertgen's work as: "one of the most engaging and convincing early treatments of the Nativity as a night scene.

  8. Entoptic phenomenon - Wikipedia

    en.wikipedia.org/wiki/Entoptic_phenomenon

    It can be seen by shining the beam of a small bright light through the pupil from the periphery of a subject's vision. This results in an image of the light being focused on the periphery of the retina. Light from this spot then casts shadows of the blood vessels (which lie on top of the retina) onto unadapted portions of the retina.

  9. Terminator (solar) - Wikipedia

    en.wikipedia.org/wiki/Terminator_(solar)

    An oblique view of the large lunar crater Keeler at the terminator (from Apollo 13) The east side of Timocharis crater while at the terminator (from Apollo 15) Mosaic of Apollo 16 photos along the terminator showing Darney, Lubiniezky, and Bullialdus craters. The lunar terminator is the division between the illuminated and dark hemispheres of ...