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Black-and-white (B&W or B/W) images combine black and white in a
Black-and-white (B&W or B/W) images combine black and white in a continuous spectrum
In physics, a continuous spectrum usually means a set of attainable values for some physical quantity (such as energy or wavelength) that is best described as an interval of real numbers, as opposed to a discrete spectrum, a set of attainable ...
, producing a range of shades
Sunglasses or sun glasses (informally called shades or sunnies; more names below) are a form of protective eyewear designed primarily to prevent bright sunlight and high-energy visible light from damaging or discomforting the eyes. They can so ...
of grey.
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).Photography
Contemporary use
Since the late 1960s, few mainstream films have been shot in black-and-white. The reasons are frequently commercial, as it is difficult to sell a film for television broadcasting if the film is not in color. 1961 was the last year in which the majority of Hollywood films were released in black and white.Computing
In computing terminology, ''black-and-white'' is sometimes used to refer to abinary image
A binary image is one that consists of pixels that can have one of exactly two colors, usually black and white. Binary images are also called ''bi-level'' or ''two-level'', Pixelart made of two colours is often referred to as ''1-Bit'' or ''1b ...
consisting solely of pure black pixels and pure white ones; what would normally be called a black-and-white image, that is, an image containing shades of gray, is referred to in this context as grayscale.Renner, Honey (2011). ''Fifty Shades of Greyscale: A History of Greyscale Cinema'', p. 13. Knob Publishers, Nice.
See also
*dr5 chrome
dr5, or dr5 Chrome, is a reversal black and white process, through which most kinds of black-and-white negative films produce transparencies (slides). The dr5 process is a chemical reversal process, rather than the standard, light-based reversa ...
* List of black-and-white films produced since 1970
* Monochromatic color
* Panchromatic film
* Selective color
References
{{DEFAULTSORT:Black-And-White Black-and-white media Photographic processes