Oki C 9400 User Manual
Page 332

Hue is the color reflected from or transmitted through an object. It is measured as a location on 
the standard color wheel, expressed as a degree between 0° to 360°. In common use, hue is 
identified by the name of the color such as red, green, orange, etc. 
Indexed Color
Color pixels are represented by 8-bits. This gives the possibility of 256 colors which are 
contained in a lookup table. 
Lightness
This describes the intensity of a color and determines whether a color is closer to black or white.
Moiré Pattern
This is an undesirable pattern that occurs due to pixel (or) dot placement. The eye is able to 
pick up repetitive patterns that exist within an image. 
Pixel
This is the smallest addressable dot or PICture ELement. This has been abbreviated as PIXEL 
rather than PICEL. 
Primary Color
All colors can be produced by mixing a limited set of colors. There are two different sets of 
primary colors associated with the video and printing industries: Additive Primaries (RGB) and 
Subtractive Primaries (CMYK). 
Registration
This describes the alignment of the various colors when printing. As each of the process 
primaries are specified separately and printed individually, it is important that the color is placed 
in precise locations or the colors will not align to produce the desired result. 
RGB 
 
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