color index

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color index

n.
The difference in brightness, expressed in magnitudes, between views of a celestial object through two different colored filters. Colors defined this way are often used to indicate surface temperatures of stars, red being cooler than blue.
References in periodicals archive ?
Their color indices were measured, flavonoid compositions and contents as well as its biosynthetic genes expression were analyzed.
Regardless of ambient lighting, the handheld device computes CMYK, sRGB, CIE, L*a*b* and Hex values, to name a few, via broad spectrum white LED light and matches them to a number of color indices.
Mathematical model relationships between storage conditions and color indices had high correlation coefficients.
The software was developed to realize the functions as follows: capturing the real-time tree video stream, extracting and processing the key frame of the tree image from the video stream, segmenting the green target from its background by a classifier called relative color indices, and measuring the segmented image by a statistic method to obtain morphological and location features of the tree target, which provides for intelligent understanding and pattern recognition.
The investigators evaluated the effects and hardness characteristics, as well as the color indices of the cookies.
Next, I checked their color indices in the European Space Agency's Hipparcos and Tycho Catalogues.
Software functions include nine color space/color difference scales, 11 color indices, two degree and 10 degree observer conditions, 14 illuminant conditions, seven data displays and three color tolerance settings.