Definitions for "Color index"
Keywords:  magnitude, spectral, star, blue, ubv
Difference between the magnitudes of a star or other object measured in light of two different spectral regions, for example, blue minus visual (B - V) magnitudes.
The difference B-V between the blue and visual magnitudes of a star. If B is less than (that is, the star is brighter in blue than in visual light), then the star has a negative color index, and is a relatively hot star. If B is greater than , the color index is positive, and the star is relatively cool. A to F | G to L | M to R | S to Z
difference in magnitude between two spectral regions of a celestial object (most often between the blue and yellow wavelength regions.
An index into an array of RGB values.
A single value that represents a color by name, rather than by value. OpenGL color indices are treated as continuous values (for example, floating-point numbers), while operations such as interpolation and dithering are performed on them. Color indices stored in the framebuffer are always integer values, however. Floating-point indices are converted to integers by rounding to the nearest integer value.
A nonnegative integer assigned a color value in a color table.
Keywords:  hemoglobin, ratio, red, cells, blood
The ratio between the amount of hemoglobin and the number of red blood cells.
Keywords:  table, see
See color table.