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Color Restoration
Colour recovery (or colour restoration) is a process that restores lost colour to television programmes that were originally recorded on colour videotape but for which only black-and-white copies exist. This is not the same as colourisation, a process by which colour is artificially added to source material that was always black-and-white (or for which no colour information was preserved in the black-and-white copy), or used to enhance poor-quality original sources. Colour recovery is a newer process and is fundamentally different from colourisation. Most of the work has been performed on PAL programmes, but the concept is not fundamentally restricted to that system. Colour recovery can be based on combining colour information from lower-quality recordings, or in the case of the BBC's new method, the particular effects created when colour source material was encoded into the common analogue television format PAL for transmission. With early colour televisions, until the mid-1980s, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Black-and-white
Black-and-white (B&W or B/W) images combine black and white to produce a range of achromatic brightnesses of grey. It is also known as greyscale in technical settings. Media The history of various visual media began with black and white, and as technology improved, altered to color. However, there are exceptions to this rule, including black-and-white fine art photography, as well as many film motion pictures and art film(s). Early photographs in the late 19th and early to mid 20th centuries were often developed in black and white, as an alternative to sepia due to limitations in film available at the time. Black and white was also prevalent in early television broadcasts, which were displayed by changing the intensity of monochrome phosphurs on the inside of the screen, before the introduction of colour from the 1950s onwards. Black and white continues to be used in certain sections of the modern arts field, either stylistically or to invoke the perception of a hist ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Original Film Frame From "Dad's Army" Split-screened With Colour
Originality is the aspect of created or invented works that distinguish them from reproductions, clones, forgeries, or substantially derivative works. The modern idea of originality is according to some scholars tied to Romanticism, by a notion that is often called romantic originality.Smith (1924)Waterhouse (1926)Macfarlane (2007) The validity of "originality" as an operational concept has been questioned. For example, there is no clear boundary between "derivative" and "inspired by" or "in the tradition of." The concept of originality is both culturally and historically contingent. For example, unattributed reiteration of a published text in one culture might be considered plagiarism but in another culture might be regarded as a convention of veneration. At the time of Shakespeare, it was more common to appreciate the similarity with an admired classical work, and Shakespeare himself avoided "unnecessary invention".Royal Shakespeare Company (2007) ''The RSC Shakespeare - Will ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Film And Video Technology
A film, also known as a movie or motion picture, is a work of visual art that simulates experiences and otherwise communicates ideas, stories, perceptions, emotions, or atmosphere through the use of moving images that are generally, since the 1930s, synchronized with sound and (less commonly) other sensory stimulations. Etymology and alternative terms The name "film" originally referred to the thin layer of photochemical emulsion on the celluloid strip that used to be the actual medium for recording and displaying motion pictures. Many other terms exist for an individual motion-picture, including "picture", "picture show", "moving picture", "photoplay", and "flick". The most common term in the United States is "movie", while in Europe, "film" is preferred. Archaic terms include "animated pictures" and "animated photography". "Flick" is, in general a slang term, first recorded in 1926. It originates in the verb flicker, owing to the flickering appearance of early films. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Luminance HDR
Luminance HDR, formerly Qtpfsgui, is graphics software used for the creation and manipulation of high-dynamic-range images. Released under the terms of the GPL, it is available for Linux, Microsoft Windows, and Mac OS X (Intel only). Luminance HDR supports several ''High Dynamic Range (HDR)'' as well as ''Low Dynamic Range (LDR)'' file formats. Functionality Prerequisite of HDR photography are several narrow-range digital images with different exposures. Luminance HDR combines these images and calculates a high-contrast image. In order to view this image on a regular computer monitor, Luminance HDR can convert it into a displayable LDR image format using a variety of methods, such as tone mapping. Currently fifteen different tone mapping operators (algorithms) are available, each one with its tunable parameters. Different image processing techniques can be applied to the generated HDR images, such as resizing, cropping, rotating and a number of projective transformations. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Image Color Transfer
Image color transfer is a function that maps (transforms) the colors of one (source) image to the colors of another (target) image. A color mapping may be referred to as the algorithm that results in the mapping function or the algorithm that transforms the image colors. The image modification process is sometimes called ''color transfer'' or, when grayscale images are involved, ''brightness transfer function (BTF)''; it may also be called ''photometric camera calibration'' or ''radiometric camera calibration''. The term ''image color transfer'' is a bit of a misnomer since most common algorithms transfer both color and shading. (Indeed, the example shown on this page predominantly transfers shading other than a small orange region within the image that is adjusted to yellow.) Algorithms There are two types of image color transfer algorithms: those that employ the statistics of the colors of two images, and those that rely on a given pixel correspondence between the images. In ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Digital Image Processing
Digital image processing is the use of a digital computer to process digital images through an algorithm. As a subcategory or field of digital signal processing, digital image processing has many advantages over analog image processing. It allows a much wider range of algorithms to be applied to the input data and can avoid problems such as the build-up of Noise (signal processing), noise and distortion during processing. Since images are defined over two dimensions (perhaps more), digital image processing may be modeled in the form of Multidimensional system, multidimensional systems. The generation and development of digital image processing are mainly affected by three factors: first, the development of computers; second, the development of mathematics (especially the creation and improvement of discrete mathematics, discrete mathematics theory); and third, the demand for a wide range of applications in environment, agriculture, military, industry and medical science has incre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reverse Standards Conversion
Reverse Standards Conversion or RSC is a process developed by a team led by James Insell at the BBC for the restoration of video recordings which have already been converted between different video standards using early conversion techniques. Historical justifications for its use Many programmes produced by the BBC in PAL in the 1960s and 1970s were converted to NTSC for distribution to 525 line markets. Because of the cost of video tape at the time, the original PAL master was often overwritten with new material or simply discarded. This often left the NTSC version as the only remaining copy. PAL to NTSC conversion (c. 1968) PAL and NTSC have a differing number of lines of resolution and also use a different field rate. Traditional standards conversion techniques adopted interpolation as a way to cater for the differences between line resolution and field frequency. What the original BBC converter tried to do (using the limited technology of the day) was to minimise judde ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monty Python's Flying Circus
''Monty Python's Flying Circus'' (also known as simply ''Monty Python'') is a British surreal humour, surreal sketch comedy series created by and starring Graham Chapman, John Cleese, Eric Idle, Terry Jones, Michael Palin, and Terry Gilliam, who became known collectively as "Monty Python", or the "Pythons". The first episode was recorded at the BBC on 7 September 1969 and premiered on 5 October on BBC1, with 45 episodes airing over four series from 1969 to 1974, plus two episodes for German TV. A feature film adaptation of several sketches, ''And Now for Something Completely Different'', was released in 1971. The series stands out for its use of Surreal humour, absurd situations, mixed with risqué and innuendo-laden humour, Visual gag, sight gags, and observational sketches without punch line, punchlines. Live-action segments were broken up with animations by Gilliam, often merging with the live action to form Segue#In film or broadcast news production, segues. The overall for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Richard T
Richard is a male given name. It originates, via Old French, from Old Frankish and is a compound of the words descending from Proto-Germanic language">Proto-Germanic ''*rīk-'' 'ruler, leader, king' and ''*hardu-'' 'strong, brave, hardy', and it therefore means 'strong in rule'. Nicknames include " Richie", " Dick", " Dickon", " Dickie", " Rich", " Rick", "Rico (name), Rico", " Ricky", and more. Richard is a common English (the name was introduced into England by the Normans), German and French male name. It's also used in many more languages, particularly Germanic, such as Norwegian, Danish, Swedish, Icelandic, and Dutch, as well as other languages including Irish, Scottish, Welsh and Finnish. Richard is cognate with variants of the name in other European languages, such as the Swedish "Rickard", the Portuguese and Spanish "Ricardo" and the Italian "Riccardo" (see comprehensive variant list below). People named Richard Multiple people with the same name * Richard Ander ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Colorburst
Colorburst is an analog and composite video signal generated by a video-signal generator used to keep the chrominance subcarrier synchronized in a color television signal. By synchronizing an oscillator with the colorburst at the back porch (beginning) of each scan line, a television receiver is able to restore the suppressed carrier of the chrominance (color) signals, and in turn decode the color information. The most common use of colorburst is to genlock equipment together as a common reference with a vision mixer in a television studio using a multi-camera setup. Explanation In NTSC, its frequency is exactly 315/88 = 3.579 MHz with a phase of 180°. PAL uses a frequency of exactly 4.43361875 MHz, with its phase alternating between 135° and 225° from line to line. Since the colorburst signal has a known amplitude, it is sometimes used as a reference level when compensating for amplitude variations in the overall signal. SECAM is unique in not ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Band-stop Filter
In signal processing, a band-stop filter or band-rejection filter is a filter that passes most frequencies unaltered, but attenuates those in a specific range to very low levels. It is the inverse of a ''band-pass filter''. A notch filter is a band-stop filter with a narrow stopband (high Q factor). Narrow notch filters (optical) are used in Raman spectroscopy, live sound reproduction (public address systems, or PA systems) and in instrument amplifiers (especially amplifiers or preamplifiers for acoustic instruments such as acoustic guitar, mandolin, bass instrument amplifier, etc.) to reduce or prevent audio feedback, while having little noticeable effect on the rest of the frequency spectrum ( electronic or software filters). Other names include "band limit filter", "T-notch filter", "band-elimination filter", and "band-reject filter". Typically, the width of the stopband is 1 to 2 decades (that is, the highest frequency attenuated is 10 to 100 times the lowest frequency ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chroma Dots
Chroma, which is Greek for color ( χρώμα), may refer to: Color * Chrominance or chroma, a component of a television signal * Chroma, a type of colorfulness * Chroma, a measure of color purity in the Munsell color system Business * Chroma ATE, a Taiwanese electronics company * EnChroma, a lens technology and eyewear company Literature * '' Chroma: A Queer Literary Journal'', a UK-based journal * ''Chroma'', a short story collection by Frederick Barthelme * ''Chroma'', a book by Derek Jarman * Chroma, a character in '' The Phantom Tollbooth'' by Norton Juster Music * Chroma feature, a quality of a musical pitch class * ''Chroma'' (album), a 2005 album by Cartel * Chroma (musician), a Japanese musician * ARP Chroma or Rhodes Chroma, a polyphonic synthesizer * "Chroma", a contemporary composition by Rebecca Saunders Video games * ''Chroma'', a canceled 2014 video game by Harmonix * Chroma and Chroma Prime, playable characters from ''Warframe'' * Chroma, a fictional ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
