The CIE based device independent color space used to store images on a Kodak PhotoCD disc. RGB Red, Green, Blue. These Additive Primary colors are the basic elements of white light. By mixing them in a computer monitor or in a scanned image file, other colors can be made. For instance, Red and Green light make Yellow light.
Saturation is a characteristic indicating the vibrancy or intensity of a hue.
A color with high saturation will appear more intense than the same color with less. Cyan, magenta, yellow. As ink applied to a piece of paper by a printing press, these colors absorb light and alter the colors seen by one looking at the press sheet. Cyan ink absorbs the red third of the spectrum, magenta ink absorbs the green third, and yellow ink absorbs the blue third. Tonal Distribution Tonal Distribution describes the distribution of various bright or dark tones within an image.