illumination contrast

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• Contrast (vision) — Left side of the image has low contrast, the right has higher contrast …   Wikipedia

• Illumination (image) — The illumination of the subject of a drawing or painting is a key element in creating an artistic piece, and the interplay of light and shadow is a valuable method in the artist s toolbox. The placement of the light sources can make a… …   Wikipedia

• contrast — Synonyms and related words: allegory, analogize, analogy, antagonism, anteposition, antipathy, antithesis, arc lighting, assimilate, bad copy, bad likeness, balance, balancing, black and white, bracket, bring into analogy, bring into comparison,… …   Moby Thesaurus

• illumination — Synonyms and related words: abstract, abstraction, accomplishments, acquisition of knowledge, acquisitions, acrylic painting, adjunct, adornment, allegorization, altarpiece, arc lighting, arrangement, attainments, awareness, black and white,… …   Moby Thesaurus

• Display contrast — Contrast in visual perception is the difference in appearance of two or more parts of a field seen simultaneously or successively (hence: brightness contrast, lightness contrast, color contrast, simultaneous contrast, successive contrast, etc.).… …   Wikipedia

• Phase contrast microscopy — Phase contrast image of a cheek epithelial cell Phase contrast microscopy is an optical microscopy illumination technique of great importance to biologists in which small (invisible to the human eye) phase shifts in the light passing through a… …   Wikipedia

• Differential interference contrast microscopy — Micrasterias furcata imaged in transmitted DIC microscopy. Differential interference contrast microscopy (DIC), also known as Nomarski Interference Contrast (NIC) or Nomarski microscopy, is an optical microscopy illumination technique used to… …   Wikipedia

• Köhler illumination — is a type of specimen illumination used in transmitted or reflected light microscopy [ [http://www.olympusmicro.com/primer/anatomy/kohler.html Olympus Microscopy Resource Center Köhler Illumination] ] . It was designed by August Köhler in 1893,… …   Wikipedia

• Critical illumination — or Nelsonian illumination is a method of specimen illumination used for transmitted and reflected light (trans and epi illuminated) optical microscopy. Critical illumination focuses an image of a light source on to the specimen for bright… …   Wikipedia

• Allen video enhanced contrast — (= AVEC microscopy) A method for enhancing microscopic images pioneered by R. D. Allen. The digitized image has the background (an out of focus image of the same microscopic field with comparable unevenness of illumination etc.) subtracted, and… …   Dictionary of molecular biology

• microscope — /muy kreuh skohp /, n. 1. an optical instrument having a magnifying lens or a combination of lenses for inspecting objects too small to be seen or too small to be seen distinctly and in detail by the unaided eye. 2. (cap.) Astron. the… …   Universalium