NEC Display Wall Calibrator 1.0.00, Руководство пользователя

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NEC Display Wall Calibrator - UsEr’s GUiDE |
Contrast Ratio – The ratio of the white luminance (Intensity) and black luminance (Black
Level) of the display.
Correlated Color Temperature – The closest matching color, expressed in Kelvin, of a white
point that does not lie exactly on the blackbody locus.
D Illuminants – CIE Daylight Standard Illuminants based on approximating daylight. The
subscript denotes the correlated color temperature of the illuminant. For example, D50 has a
correlated 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 dif-
ference between 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
output 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 specifies 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
Candelas per meter squared (cd/m
²
) 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 Re-
sponse Curves.