Color Separation - The electronic or photographic process of separating a single RGB color image into the three subtractive primary colors CMY plus K (black) that will be used for reproduction. These four monochrome films are used to produce the plates in four color printing.
Data - The numbers that make up a digital file.
Redeye - Redeye is the term used to describe the red color often visible people's eyes when a picture is taken with a flash. Redeye is caused by the reflection of the flash off the subjects' eyes -- a problem that is compounded when the flash is positioned close to the lens, as it is on many small cameras.
Cathode Ray Tube (CRT) - Hitachi is the leading manufacturer of the rear projection television glass picture tubes that house the electron gun and phosphor-coated faceplate. Hitachi rear projection televisions incorporate three monochromatic discrete high-output CRTs (one each for red, blue and green) that project the full-color image at the screen.
Direct Digital Recording - With direct digital recording, digital compact cassette (DCC) decks use digital inputs and digital outputs from CD players or receivers to create crisp, clean digital recordings without the noise associated in the usual digital to analog conversions of regular analog cassette decks.
DTS - Digital Theatre Sound System. A Dolby proprietary discrete 5.1 channel surround system similar to, but not the same as Dolby Digital AC-3, the DTV standard. DTS is used in cinema presentations and in DVD's.
Noise - In image editing applications, a random pattern of unwanted pixels or pixel groupings called artifacts.
16 Base - The 2048 x 3072 pixels image that is scanned and stored on a Photo CD and suitable for digital imaging and desktop publishing applications.
3:2 pull-down - This is the process of converting a 24 frames/sec image into a 30 frames/sec image. Some line-doublers will reverse this process to acquire the original, and then re-perform it.
Aspect Ratio - the ratio of image width to image height. The term may apply to the display device configuration, or the shape of the content being displayed. (See Letterboxing) HDTV uses an aspect ratio of 16 units wide by 9 units high. Conventional television programming and displays are at an aspect ratio of 4 - 3. Digital SDTV programs may aspect ratios from 4 - 3 to 16 - 9, dependant on content and its source (e.g. upconverted NTSC is likely to be 4 - 3).
Comb filter - A circuit in NTSC sets that separates the color information from the brightness information.
Descreening - A feature of some scanners that allow them to eliminate moir‚ patterns that can occur.
Franklin eBookMan - A line of eBook reader and content playing handhelds developed by Franklin.
Hertz (Hz.) - A scale used for measuring the number of cycles per second.
IEEE1394 - High-bandwidth digital connection that uses MPEG-2 compression. Requires a decoder for playback and offers networking capabilities.
Interlaced Scanning - Some HD televisions and most conventional televisions use the "interlace" method of scanning, in which the picture is transmitted and painted on the screen in two passes. In the first pass, every other line is painted and in the second, the lines in between. Some display types, such as LCD, plasma and DLP cannot display directly images transmitted as interlaced signals and must convert them to a progressive format prior to their display.
Sampling - This is the digital process by which analog information is measured, often millions of times per second, in order to convert analog to digital.
Surround Output Level - Allows adjustment of the rear speaker level relative to the front speaker level according to viewing location and individual preference.
