NEC Display Wall Calibrator Guía de usuario descargar pdf (Pagina 90)

90 | NEC DISPLAY WALL CALIBRATOR - USER’S GUIDE

D Illuminants – CIE Daylight Standard Illuminants based on approximating daylight. The sub-

script denotes the correlated color temperature of the illuminant. For example, D50 has a corre-

lated color temperature of 5000K.

Delta-E (Δ-E) – A measurement of how different two colors are to each other. In NEC Display Wall

Calibrator, Delta-E values are derived by calculating the distance between two colors in Lab color

space using the CIE 94 formula. A Delta-E value of 1 indicates a just perceptual difference be-

tween two colors.

Delta-uv (Δ-uv) – A measure of how different two colors are, irrespective of luminance. In NEC

Display Wall Calibrator Delta-uv values are used to indicate how far a white point is from the

blackbody locus. CIE uv color space is used instead of CIE xy because it is more perceptually

uniform or linear.

Device Gamut – The range of colors that a device can produce.

DICOM – Digital Imaging and Communications in Medicine.

Foot Lamberts (fL) – A unit of luminance. One foot Lambert is equal to 1 Candela per meter

squared divided by 10.76/π (approximately 3.43) .

Gamma – The relationship between the input video signal to a display monitor and the screen out-

put luminance. Typically the screen luminance follows a mathematical power function of the input

video signal, the exponent of which is called the gamma.

Gamut – The range of colors that can be reproduced on a particular device such as a monitor or

printer, or that can be distinguished by a sensing device such as a scanner or the human eye.

Hue – The basic attribute of color such as red, green, yellow, blue or purple.

Intensity – Intensity species the luminance or brightness of white when displayed on the screen.

IP – Internet Protocol.

Kelvin – An absolute temperature scale denoted by K. Zero Kelvin (0K) is equivalent to –273°

Celsius.

Lab – (See CIE Lab)

LAN – Local Area Network

LCD – Liquid Crystal Display.

Luminance – A measure of the brightness or intensity of light, usually expressed in units of Can-

delas per meter squared (cd/m²) or foot Lamberts.

Look Up Table (LUT) – A table used to translate input values to output values. NEC Display Wall

Calibrator displays use 10 bit internal LUTs to apply Gamma corrections and Tone Response

Curves.

Native state – Without any kind of correction or calibration applied.

Nit – A unit of luminance equal to Candelas per meter squared (cd/m²).

OSD – On Screen Display.

RS232 - Recommended Standard 232 is a standard for serial binary data signals.

Saturation – An expression of the amount a color deviates from being achromatic (neutral in color,

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NEC Display Wall Calibrator Guía de usuario Pagina 90