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Bitmap
The representation of a digital image in the computer’s memory.
BPP
Bi-directional Parallel Port mode. This less advanced port mode allows communication to pass in both
directions between the computer and parallel port devices.
Brightness
The balances of dark and light shades determine the intensity of an image.
Cast
Too much of one color in an image, such as too much red giving an image an all-over red appearance.
CCD, Charged Coupled Device
A special light-sensitive integrated circuit that is designed to capture digital images directly. CCD is found in
scanners, digital cameras, camcorders, and other imaging devices.
Chrominance
Color in Video, equivalent to hue and saturation.
CIS
Contact Image Sensor. A scanning method that combines the elements needed to digitize an image into a
single sensor. The CIS method provides for quick scanning.
Cloning
Free-hand retouching of an image by copying patches of one image or area and pasting them into another
image or area of the same image.
CMOS
The setup of the computer’s basic components stored in permanent memory (ROM). Some of the
components governed by the CMOS are IDE controllers (hard drives and CD-ROM drives), serial and parallel
ports, memory caching, etc.
CMYK or Cyan/Magenta/Yellow/Black
A color model for defining and representing colors consisting of four channels. Combining these four colors
in various proportions generates color. Most often found in 32-bit color (8-bit channels).
Color Channel
Color is made up of components that build up the image. Combinations of elements from the channels create
the shades. Each bit in a channel can be combined with a bit from another channel to create a different shade.
The more bits in each channel (the greater bit-depth), the more shades that can be produced. There are
different types of channels that build up an image differently: RGB uses three channels and CMYK uses four.
Complementary Color
The color that can be added to another color to get gray. The opposite color on the color wheel.
Red- Cyan Green-Magenta Blue-Yellow
Comport
Another name for a serial port.