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Black. Black is a primary color across all models of color space. In Western culture, it is considered a negative color and usually symbolizes death, grief, or evil but also depression. People often wear black for mourning, although this practice is not as widespread as it was in the past. White
Of an image, the term monochrome is usually taken to mean the same as black and white or, more likely, grayscale, but may also be used to refer to other combinations containing only tones of a single color, such as green -and-white or green-and-red.
The contrast of white and black ( light and darkness, day and night) has a long tradition of metaphorical usage, traceable to the Ancient Near East, and explicitly in the Pythagorean Table of Opposites . In Western culture as well as in Confucianism, the contrast symbolizes the moral dichotomy of good and evil .
In computing terminology, black-and-white is sometimes used to refer to a binary image 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.
Traditionally, the standard colors in Chinese culture are black, red, cyan (青; qīng), white, and yellow. Respectively, these correspond to water, fire, wood, metal, and earth, which comprise the 'five elements' of traditional Chinese metaphysics.
Grey (more common in Commonwealth English) or Gray (more common in American English) is an intermediate color between black and white. It is a neutral or achromatic color, meaning literally that it is "without color", because it can be composed of black and white. It is the color of a cloud-covered sky, of ash, and of lead.
Black and white have long been known to combine well with almost any other colors; black decreases the apparent saturation or brightness of colors paired with it, and white shows off all hues to equal effect.
In digital photography, computer-generated imagery, and colorimetry, a grayscale image is one in which the value of each pixel is a single sample representing only an amount of light; that is, it carries only intensity information. Grayscale images, a kind of black-and-white or gray monochrome, are composed exclusively of shades of gray.
White – Considered the purest and cleanest color in Islam and the color of the flag of Muḥammad, the Young Eagle. [7] [8] Black – The color of Jahannam as well as the color of the Black Standard .
A dominant theory of color vision proposes that color information is transmitted out of the eye by three opponent processes, or opponent channels, each constructed from the raw output of the cones: a red–green channel, a blue–yellow channel, and a black–white "luminance" channel. This theory has been supported by neurobiology, and ...