Konica Minolta Scan Multi PRO instruction manual Glossary, Contrast

GLOSSARY

BRIGHTNESS	The lightness or darkness of the image.
CHANNEL	The component of an image. Your scanned image has three channels:
	red, green, and blue (RGB).
CONTRAST	The gradation of shades in an image. A high contrast image has very
	dark areas and bright areas without many middle shades. A low contrast
	image has many tones that are close to the same brightness. Low
	contrast images are often described as looking ‘flat’.
CROP	To trim and delete the unwanted edges of the image.
DPI	Dots (pixels) per inch.
EMULSION SIDE	The side of the film coated with the photographic material.
GAMMA	The contrast of only the middle tones.
HIGHLIGHTS	The lighter areas of the image.
HISTOGRAM	A graph showing the amount of each level of the 256 brightness levels.
IEEE 1394	Refer to the page 106.
INTERPOLATION	A methord of adding new pixels to an image when resampling up.
JPEG	The JPEG (Joint Photographic Experts Group) compression standard is
	capable of producing a high compression ratio while maintaining image
	quality. JPEG is a widely supported image file format.
MIDTONE	The middle shades of an image, in between light and dark.
NEUTRAL	Having no colour cast, such as black, white, or grey.
PICT	(Macintosh operating system only) The PICT graphic file format uses a
	lossless compression scheme and is compatible with many Macintosh
	applications.
PIXEL	Abbreviation for picture element. The dots that make up an electronic
	image.
RESAMPLE	To change the number of pixels in the image. If pixels are discarded
	when shrinking an image, it is called resampling down. If new pixels are
	created in an image, it is called resampling up (see page 89).
RESOLUTION	The number of pixels in a given area of the image; such as pixels per
	inch or pixels per centimetre. High resolution is the term for an image
	with a lot of pixels in a given area. Low resolution means there are not
	many pixels in a given area.

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