8-bit grayscale
Grayscale, in contrast, is scanned in 8 or 10 bits (output of 8 bits), a single channel of color, providing for 256 shades of gray.
1-bit black and white
Aliasing & Anti-aliasing
Jagged edges on objects or changes of colors within an image.
Alpha Blending
Additional information is coded into each pixel for creating transparent materials.
Application Software for scanners
Applications are any software that manipulates scanned images or text in some manner. Different software has different functions: some allow you to manipulate and modify an image (see Imaging Software) and some allow you to convert a scanned document into editable text (see OCR).
ASCII text
Plain text without any fonts or formatting codes (including line breaks in most cases). Most
Aspect Ratio
This is the ratio of the width compared to the height in a rectangle. 1.0 would be a square.
BBS
Bulletin Board Service. Computers setup so that other computers can connect (logon) directly to them. The purpose of most BBSs is to allow the transfer of files, other data, and typed communication. The graphics used on most BBSs is ANSI, a primitive form of graphics based on ASCII with color and shades codes added.
BIOS
Basic Input/Output System and a program code in the permanent memory (ROM) of a computer, which performs the
Bit
The smallest unit of memory in the computer is called a bit. A bit can be set to either on or off (1 or 0). Greater
Bit-depth
The number of bits in pixel, the
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