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ITGS - Multimedia
Key Terms for ITGS Topic 5 - Multimedia
| Term | Definition |
|---|---|
| AAC | Lossy file format for audio. |
| Alignment | Tools to control placement of objects in presentation or DTP software. |
| AVI | Lossy file format for video. |
| Bit depth | Refers to the number of colors in an image. |
| Bit rate | Amount of data used to represent a single sample in a video or audio file. |
| Bitmap graphics | Graphics composed of rectangular grids of pixels. |
| Blue screen | Technique used to replace part of a video image matching a certain color with computer graphics. |
| BMP | Lossless file format for audio. |
| Buffer | Temporary storage area used to store video or audio data ready for playing. |
| Computer Aided Design (CAD) | Technical graphics software used to design products for manufacture. |
| Computer Generated Imagery (CGI) | Graphics created entirely on a computer, using 2D or 3D graphics software. |
| Citation | Acknowledge to a piece of work used as a source. |
| Cloning | Graphics technique which copies one part of an image to another, often to remove something from the image. |
| Color balance | Graphics filtering for altering the tones and intensities of colors in an image. |
| Color depth | Refers to the number of colors in an image. |
| Color levels | Graphics filtering for altering the tones and intensities of colors in an image. |
| Color management | Ensuring printed output colors accurately match those on the screen. |
| Color profile | Used as part of color synchronization to specify how a device represents color. |
| Color synchronization | Ensuring printed output colors accurately match those on the screen. |
| Composite image | Image which was created from several separate images |
| Compression | Reduction in the amount of data used to store a file. |
| Copyright | Legal concept which protects intellectual property from authorized copying, alteration, or use. |
| Creative Commons | Licensing system for authors who wish to distribute their work freely. |
| Cropping | Taking a small part (subset) of an image. |
| Desktop publishing software (DTP) | Software used for laying out text and images on pages. Commonly used for books, magazines, and brochures. |
| Digital effects | General name for operations performed on an image using graphics software. |
| Digital Rights Management (DRM) | Software which restricts the actions a user can perform with a file, such as copying or printing. |
| Digitization | The process of converting analog data into digital computer data. |
| DOC | File format for documents, used by Microsoft Office. |
| Dots per inch (DPI) | Also known as printer resolution. The number of dots of color a printer is capable of producing in a certain amount of space. |
| Fair use | Exceptions to copyright law that allow copying in certain limited circumstances. |
| Filters | General name for operations performed on an image using graphics software. |
| FLAC | Lossless file format for audio. |
| Flipping | Image effect found in most graphics software. |
| Footer | Area of a document which appears the same on every page. |
| GIF | Lossless file format for images. |
| GNU Free Documentation License | Licensing system for authors who wish to distribute their work freely. |
| Green screen | Technique used to replace part of a video image matching a certain color with computer graphics. |
| Header | Area of a document which appears the same on every page |
| Image editor | Software used to create or edit bitmap graphics. |
| Intellectual property | Refers to creations of the mind – non-physical property such as photographs, music, stories, and films. |
| JPG | Lossy file format for images |
| Layer | Technique used in graphics software to place digital images or effects on top of each other to build up a final image. |
| Lossless compression | Compression technique in which the original file is completely recoverable, with no loss of quality. Compare lossy compression. |
| Lossy compression | Compression technique in which some file data is sacrificed in order to reduce file size. |
| Master page | A template page which is used to include standard features (such as page numbers or a header) on each page of a document in a consistent manner. |
| Megapixel | Unit used to measure the resolution of digital cameras. Refers to 1 million pixels. |
| Musical Instrument Digital Interface (MIDI) | Musical Instrument Digital Interface. System for communication between musical hardware and software applications. |
| Morphing | Effect that transforms one image into another over a series of frames |
| Motion capture | A system used to capture human movement into a computer by attaching sensors to an actor and tracking their location. |
| MOV | Lossy file format for video. |
| MP3 | Lossy file format for audio. |
| MP4 | Lossy file format for video. |
| MPEG | Lossy file format for video. |
| Object oriented graphics | Graphics which are stored as a series of mathematical shapes and properties that can be independently manipulated at any time. |
| ODT | File format for documents, used by LibreOffice. |
| Pixel | Individual dots which make up bitmap graphics. |
| Pixels per inch (PPI) | Number of pixels displayed in each inch of screen output. |
| Plain text file | File format that stores characters using ASCII or Unicode encoding. |
| PNG | Lossless file format for images. |
| Portable Document Format (PDF) | Common file format for the exchange of documents, which appears on screen exactly as it will appear on the printer. |
| Raster graphics | Graphics composed of rectangular grids of pixels. |
| Resolution | Refers to the number of pixels in an image |
| Rich Text Format (RTF) | File format for documents, which can store text and some basic formatting information. |
| Rotating | Image effect found in most graphics software. |
| Sample rate | Number of samples taken each second when recording sound. |
| Scaling | Changing the size of an image. |
| Selection tools | Tools in graphics software for selecting only a subset of an image. |
| Streaming media | Video or audio data that is played while it is downloading. |
| SVG | Standard file format for vector image data. |
| Template | A page which is used to include standard features (such as page numbers or a header) on each page of a document in a consistent manner. |
| Text file (TXT) | File format that stores characters using ASCII or Unicode encoding. |
| TIF | Lossless file format for images. |
| True colour | Image with 24 bit color depth. |
| Typography | The proficient use of fonts, font sizes, and font properties such as leading and kerning to display text in an appropriate manner. |
| Vector graphics | Graphics which are stored as a series of mathematical shapes and properties that can be independently manipulated at any time. |
| Video CODECs (coder-decoders) | Software required to view certain compressed video and audio formats. |
| Virtual actors | Animated characters used in films, created entirely using computer graphics software. |
| Vorbis | Lossy file format for audio |
| Watermarking | The process of adding an author name or logo into an image to identify its owner and prevent intellectual property theft. |
| WAV | Lossless file format for audio. |
| WMA | Lossy file format for video. |
| What You See Is What You Get (WYSIWYG) | Refers to programs that present their output onscreen exactly as it will appear when printed. |
| Zip file | Compressed file format for general data. |
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NuhaM:)