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Black-and-white (B&W orB/W) images combineblack andwhite to produce a range ofachromatic brightnesses ofgrey. It is also known asgreyscale in technical settings.
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-whitefine art photography, as well as many film motion pictures andart 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 earlytelevision 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 historic work or setting.
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.[1]
Incomputing terminology,black-and-white is sometimes used to refer to abinary image consisting solely of pure blackpixels 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 asgrayscale.[2]
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