Gamma


Gamma
F/A/V
The degree of contrast in a negative or print.
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PP
A measurement of the intensity of midtones in an image. Adjusting the gamma adjusts the level of the midtones while leaving the blacks and whites untouched.
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WikiV
A numerical value, or the degree of contrast in a video picture, which is the exponent of that power law which is used to approximate the curve of output magnitude versus input magnitude over the region of interest. Since picture monitors have a nonlinear relationship between the input voltage and brightness, the signal must be correspondingly pre distorted. Gamma correction is always done at the source (camera).

Audio and video glossary. 2014.

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  • gamma — [ ga(m)ma ] n. m. • transcrit 1824; mot gr. 1 ♦ Troisième lettre de l alphabet grec (Γ, γ), correspondant au G [ g ] . 2 ♦ POINT GAMMA.Astron. Intersection de l écliptique avec le plan de l équateur. ⇒ vernal. Arg. scol. Fête de l École… …   Encyclopédie Universelle

  • Gamma — (uppercase Gamma;, lowercase gamma;; el. Γάμμα) is the third letter of the Greek alphabet. In the system of Greek numerals it has a value of 3. It was derived from the Phoenician letter Gimel Ґ. In Modern Greek, it represents either a voiced… …   Wikipedia

  • gamma (1) — {{hw}}{{gamma (1)}{{/hw}}A s. m. inv. Nome della terza lettera dell alfabeto greco. B  in funzione di agg. inv.  ( posposto a un s. ) (fis.)  Nella locuz. raggi –g, radiazioni elettromagnetiche ad alta frequenza che si generano nel nucleo atomico …   Enciclopedia di italiano

  • Gamma-GT — Gamma glutamyl transpeptidase La gamma glutamyl transferase (GGT ou GGTP, ou Gamma GT ou γ GT, etc.) (EC 2.3.2.2) est une enzyme hépatique. Cette enzyme est également présente dans d autres tissus, tels l épididyme. La détermination de son… …   Wikipédia en Français

  • Gamma GT — Gamma glutamyl transpeptidase La gamma glutamyl transferase (GGT ou GGTP, ou Gamma GT ou γ GT, etc.) (EC 2.3.2.2) est une enzyme hépatique. Cette enzyme est également présente dans d autres tissus, tels l épididyme. La détermination de son… …   Wikipédia en Français

  • gamma — gam ma (g[a^]m m[.a]), n. The third letter ([Gamma], [gamma] = Eng. G) of the Greek alphabet. [1913 Webster] …   The Collaborative International Dictionary of English

  • gamma — third letter of the Greek alphabet, c.1400, from Gk. gamma, from Phoenician gimel, lit. camel (see CAMEL (Cf. camel)); so called for a fancied resemblance of its shape to some part of a camel. Gamma rays (1903) originally were thought to be a… …   Etymology dictionary

  • Gamma [2] — Gamma, der dritte Buchstabe des griech. Alphabeths (Γ, γ), entsprechend dem »G«. – In der Musik war G. früher der Name des unserm großen G entsprechenden Tones. Da bis zum 14. Jahrh. dieser Ton nach der Tiefe die Grenze blieb, so erhielt »gamme«… …   Meyers Großes Konversations-Lexikon

  • gamma — s.f. [dal nome della lettera gr. Γ, gamma maiusc., che nella notazione musicale gr. indicava il suono fondamentale (sol ) nel sistema teorizzato da Pitagora]. 1. (mus.) a. [successione ordinata dei suoni di un sistema musicale] ▶◀ scala… …   Enciclopedia Italiana

  • gamma — {{/stl 13}}{{stl 8}}rz. ż Ia, CMc. gammie, blm {{/stl 8}}{{stl 7}} trzecia litera alfabetu greckiego <gr.>{{/stl 7}}{{stl 17}}ZOB. {{/stl 17}}{{stl 7}}promienie [promieniowanie] gamma {{/stl 7}} …   Langenscheidt Polski wyjaśnień

  • gamma — (Del gr. γάμμα). 1. f. Tercera letra del alfabeto griego (Γ, γ), que corresponde a g del latino. 2. Unidad de medida, no aceptada por el Sistema Internacional de unidades, equivalente a una millonésima de gramo. ☛ V. rayos gamma …   Diccionario de la lengua española


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