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Watercolour paint used in photographic hand-colouring consists of four ingredients: pigments (natural or synthetic), a binder (traditionally arabic gum), additives to improve plasticity (such as glycerine), and a solvent to dilute the paint (i.e. water) that evaporates when the paint dries. The paint is typically applied to prints using a soft ...
Although digital images captured in color can be modified with a digital black and white process, some specialized cameras photograph natively in black and white with no option for color. [10] Black and white digital cameras are often designed without a Bayer filter, avoiding the demosaicing process and meaning that a camera will only capture ...
The contrast ranges from black at the weakest intensity to white at the strongest. [1] Grayscale images are distinct from one-bit bi-tonal black-and-white images, which, in the context of computer imaging, are images with only two colors: black and white (also called bilevel or binary images). Grayscale images have many shades of gray in between.
For example, he proposed painting ships' guns grey on top, grading to white below, so the guns would disappear against a grey background. [10] Similarly, he advised painting shaded parts of the ship white, and brightly lit parts in grey, again with smooth grading between them, making shapes and structures invisible.
An image that was originally published as a monochrome image, such as black-and-white or sepia photographs, should not usually be colorized. Adding color to such an image constitutes original research. Images that were colorized by their creator, an expert, or a reliable source may sometimes be acceptable.
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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.
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