color index


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Related to color index: Color Rendering Index

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 ?
Color index for red grapes (CIRG), colorimetric values were calculated using the CIRG = 180-hue * / (L * + C *)equation, where C * is calculated with C * = a* 2 + b * 2) 1/2 and hue * is the angle calculated with hue * = tan[g.sup.-1] (b * / a *) (CARRENO et al., 1995).
Pearson correlation test was used to analyze the correlation between lycopene, HMF, and color index.
M52's yellow-orange star is a foreground giant with a spectral class of F8, implying a color index of 0.56, which goes hand-in-hand with a yellow-white star.
At 21, 32 and 41 days after transplanting, at which time the advanced symptoms of nutritional deficiency were expressed, tiller and leaf counts, shoot height and determination of the green color index were performed.
Thermal Alteration Index ( TIA) and Spore Color Index (SCI) suggest that lower part is oil prone, middle part is gas prone and upper part is immature.
Since the green component of the digital image (G) alone, which ranges from 0 to 255, does not define the color green, the green color hue (H) was also determined in degrees (where 60[degrees] is yellow and 120[degrees] is green) along with the Dark Green Color Index (DGCI), which ranges from 0 to 1.
The color index of around 1, the viscosity index of over 90, and the pour point of below minus 6 degrees Celsius are the key specifications of the new product, which has been highly appreciated on the target markets.
The content of pectic substances in culture liquids was determined by color index by measurement of optical density using a KFK-2 photocolorimeter at a wave length of 315 nm.
The L*, a*, and b* values were used to calculate Hue, Chroma, and the Total Color Index using the following formulas:
Other practices like geo-referenced site specific crop management may include; electromagnetic soil mapping, soil sample collection, crop yield data collection, aerial imagery, crop or soil color index maps, soil types and characteristic, drainage level and potential yields.