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Chroma key
| Telecommunications Glossary |
In color television, an electronic matting process of inserting one image over a background. used very commonly with weathercasters who are standing in front of a blank wall painted process blue. the electronics remove the blue and insert the weather map so that on the television screen the two images merge and the weathercaster appears to be standing in front of a large map painted on the wall.
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Llave croma, испанский
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Chroma, английский
- The attribute of visual perception in accordance with which an area appears saturated with a particular color or hue. example
- That quality of color which embraces both hue and saturation. white, black, and grays have no chroma.
- The color of an image element (pixel). is made up of saturation + hue values, but separate from the luminance value.
- The colour of an image element or pixel. a chroma is made up of saturation plus the hue values, but is separate from the luminance value.
- Brilliance or intensity of a colour.
- Another word for color or hue; the amount of saturation of a color.
Chroma control, русский
Chroma control, английский
- A control of color television receiver that regulates the saturation (vividness) of colors in a color picture.
- Регулятор цветности
Chroma crawl, английский
- An artifact of encoded video, also known as dot crawl or cross-luminance, occurs
- An artifact of encoded video, also known as dot crawl or cross-luminance, occurs in the video picture around the edges of highly saturated colors as a continuous series of crawling dots and is a result of color information being confused as luminance information by the decoder circuits. chroma gain (chroma, color, saturation)in video, the gain of an amplifier as it pertains to the intensity of colors in the active picture.
Chroma crawl (хроматическое сползание), английский
Артефакт кодированного видео, известный так же, как сползание точек или как яркостная перекрестная помеха. в видеоизображении появляется на краях сильно насыщенных цветов в виде непрерывной последовательности сползающих точек вследствие смешивания цветовой и яркостной информации в схеме декодера.
Chroma detector, английский
Detects the absence of chrominance information in a color encoder input. the chroma detector automatically deletes the color burst from the color encoder output when the absence of chrominance is detected.
Chroma gain (chroma, color, saturation), английский
In video, the gain of an amplifier as it pertains to the
Chroma key (color key), английский
- A video key effect in which one video signal is inserted in place of areas
- A video key effect in which one video signal is inserted in place of areas of a particular color in another video signal.
Chroma key (хроматический ключ), английский
Видеоэффект, при котором один видеосигнал подставляется в области другого видеосигнала, имеющего определенный цвет.
Chroma mapping, английский
Отображение цветов
Chromadizing, английский
Chromakey, английский
Chromal, английский
Chromamaking, английский
Манипуляции с цветовыми составляющими
Chromascope, английский
Chromate, английский
- To coat a metal surface with a rustinhibiting primer of lead or zinc chromate.
- Хромат
Chromate treatment, английский
Chromatherapy, английский
The use of color for well-being or healing purposes; a lighting system that uses the soothing qualities of color to relax the mind and body.
Chromatic, английский
- Having to do with color, or wavelength.
- Relating to or produced by color.
Chromatic aberration, английский
- Optical term, which refers to the distortion of an image as a result of a scattered focal point caused by a defect in a lens. a combination of lens can be used to correct this effect.
- Chromatic aberration. failure of a lens to focus all colours at the same point. the aberrations can be along the optical axis (longitudinal ca, or loca) or off-axis (lateral or transverse ca, tca).
- An optical defect of a lens which causes different colors or wave lengths of light to be focused at different distances from the lens. it is seen as color fringes or halos along edges and around every point in the image.
- Also known as the purple fringe effect. it is common in two megapixel and higher resolution digital cameras (especially those with long telephoto zoom lenses) when a dark area is surrounded by a highlight. along the edge between dark and light you will see a line or two of purple or violet colored pixels that shouldn`t be there.
- Also known as color fringing, chromatic aberration occurs when the collective color wavelengths of an image fail to focus on a common plane. the results of chromatic aberration are most noticeable around the edges of high-contrast images, especially toward the edges of the frame. chromatic aberration is most common on less expensive lenses, although even the best optics can occasionally display lower levels of chromatic aberration, under certain conditions.
- In terms of lens optics it is the failure of the lens to focus all colours (rgb) at the same point. it shows up as colour fringes in areas of the image where dark meet light (think edge of a building against the sky). it is more common in wide angle lenses, and those of inferior optics (kit lenses). it is correctable, to some degree, using photoshop, lightroom or software of your choice.
- Also known as purple fringing. it is fairly common in 2mp digital cameras and above, especially if they have long telephoto lenses. you can see it when a dark area is surrounded by a highlight. in between the dark and light, you may see a band of purple pixels that shouldn’t be there. there are ways of removing this which i have covered in the photoshop section.
- When a lens causes white light to be broken into various component colors with each focus at a different distance from the lens, commonly producing color fringe around a viewed image.
Television, английский
- Телевидение; телевизионный
- The electronic transmission of pictures and sounds.
- Телевидение
- An electronic system of transmitting transient images of fixed or moving objects together with sound through space by an apparatus that converts light and sound into electrical waves and reconverts them into visible light rays and audible sound.
Electronic, английский
- Associates, incorporated фирма «электроник ассо- шиитс инкорпорейтед»
- Communications, incorporated фирма «электронике комьюникейшнз инкорпорейтед»
- Devices, incorporated фирма «электроник дивайсиз :ин- корпорейтед»
- Электронный
- [emergency] locator transmitter аварийный радиомаяк
- One of the music genres that appears under genre classification in windows media player library. based on id3 standard tagging format for mp3 audio files. id3v1 genre id # 52.
Background, английский
- Фон
- The surface area against which the pattern is contrasted. the surface area of
- The portion of a scene that sits behind the main, foreground subject. the background can be made sharp or unsharp through the use of selective focusing techniques and depth of field manipulation.
- A фоновый; внеязыко- вой knowledge
- Sound or noise that interferes with radio or sonar reception.
- Фон, задний план о ~ for
- A page that you can assign to another page to create multiple layers in a drawing.
- In a graphical user interface such as windows, a pattern or picture in the screen background that can be chosen by the user.
- The area on a card that allows a user to make the card’s image a background when clicked on.
- The area that appears behind the tiles on the start screen.
- The color or image that appears behind the content of a visual element, for example, behind the text that is displayed in a textbox control or on your graphical user interface.
- The image that appears in the conversation window.
- The picture that appears in the photos hub.
- Formations on or signals from a test object that constitute the background to a discontinuity. the higher the level of background noise, the more difficult it is to distinguish a discontinuity. background signals may arise from visual, acoustic, chemical, electrical, or radiation sources that the sensor responds to. see also sensitivity; signal-to-noise ratio.
- Formations on or signals from a test object that constitutes the background to a discontinuity. the higher the level of background noise, the more difficult it is to distinguish a discontinuity. background signals may arise from visual, acoustic, chemical, electrical or radiation sources that the sensor responds to. see also neural acuity; sensitivity; signal-to-noise ratio.
- Formations on, or signals from, a test object that constitute the background to a discontinuity. the higher the level of background noise, the more difficult it is to distinguish a discontinuity. see also background fluorescence; neural acuity; sensitivity; signal-to-noise ratio. glossary b 491
- In magnetic particle testing, the appearance or brightness of the surrounding area acting to reduce the contrast of an indication. (2) nonrelevant signal that tends to interfere with the normal reception or interpretation of the target being sought.
Electronics, английский
- " and aerospace systems conference конференция по электронике и авиационно-космическим системам
- Электроника; электронное оборудование
- Электроника
- *^ research center научно-исследовательский центр по электронике
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Circular polarization, английский
A mode of transmission in which signals are downlinked in a rotating corkscrew pattern. a satellite`s transmission-capacity can be doubled by using both right-hand and left-hand circular polarization.
Chip sets, английский
Application-specific integrated circuits (asics) are being developed for use in video application products such as codecs, desktop video, and home satellite entertainment. asics operate more like computer hardware. programmable chips operate much like computer software. the chip sets meet the ccitt h.261 compression standard and will be the driving force in the widespread use of video communications technology because they will lower the cost and open up the technology to a much larger group of users.
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