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Adobe Premiere Elements 12 User Manual

Page 312

background image

bluescreen

camcorder

capture

capture card

channel

chroma

chroma key

chrominance

Cinepak®

clip

codec

color bars

color correction

compositing

compression

current-time indicator

cut

D1

data rate

decode

See keying.

A digital video camera—that is, a device that records sequences of continuous pictures and generates a signal for display or transfer

of video footage.

The process of transferring source video from a camcorder or tape deck to a computer. If the source video is analog, the capture process

converts the video to digital.

Sometimes called a capture or video board. A card installed into a computer and used to digitize video. Or, for video that is already

digitized, the device that simply transfers the file to the hard disk.

Stores color information for a computer graphic. Each graphic contains three separate channels (red, green, and blue) that can be

adjusted independently. Additional channels, called alpha channels, can be added to define transparent areas.

Short for chrominance.

A video effect that removes an area of specific color. This effect is often used during newscasts to insert a weather map behind a

meteorologist.

The color information in a video signal that comprises the hue (phase angle) and saturation (amplitude).

A commonly used codec for compression of video files on CD-ROM. Cinepak offers temporal and spatial compression and data-rate

limiting.

A digitized or captured portion of video, audio, or both.

Short for compressor/decompressor. A device or program that uses algorithms to compress video and sound files, making them easier to

work with and store, and to decompress files for playback. Common codecs convert analog video signals to compressed digital video files (for
example, MPEG) or analog sound signals to digital sound files (for example, RealAudio®). See also compression.

See NTSC color bars.

The process of altering the color of video, especially if it was shot under less than ideal conditions, such as low light.

The process of combining images to yield a resulting “composite” image.

The process of reducing data, such as in an audio or video file, into a form that requires less space.

In Adobe Premiere Elements, a gray pointer with a red line

in Timeline and Properties, and a gray pointer with a gray

line

in the Monitor. You drag this indicator to navigate through clips and identify specific frames.

The simplest type of transition, in which the last frame of one clip is followed by the first frame of the next.

Stands for Digital 1, a digital video format that has a 4:3 frame aspect ratio and a 0.9:1 pixel aspect ratio. D1 pixels are rectangular (non-

square), unlike analog pixels, which are square. D1 is an international TV standard: D1-NTSC uses a frame size of 720 x 486 pixels, and D1-PAL
uses a frame size of 720 x 576 pixels. See also digital video and square-pixel footage.

The amount of data moved over a period of time (for example, 10 MB per second). Often used to describe a hard drive's ability to

retrieve and deliver information.

To divide an encoded video signal into its separate components. See also encode.

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