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Identification of inmates in Nazi concentration camps was performed mostly with identification numbers marked on clothing, or later, tattooed on the skin. More specialized identification in Nazi concentration camps was done with badges on clothing and armbands.
See also History of ancient numeral systems – Symbols representing numbers History of the Hindu–Arabic numeral system List of numeral system topics Numeral prefix – Prefix derived from numerals or other numbers Radix – Number of digits of a numeral system Radix economy – Number of digits needed to express a number in a particular base
Image resolution. Image resolution is the level of detail of an image. The term applies to digital images, film images, and other types of images. "Higher resolution" means more image detail. Image resolution can be measured in various ways. Resolution quantifies how close lines can be to each other and still be visibly resolved.
ImageNet is an online database of labeled images designed to help in the development of computer vision and image recognition systems.
List of directly imaged exoplanets. This is a list of extrasolar planets that have been directly observed, sorted by observed separations. This method works best for young planets that emit infrared light and are far from the glare of the star. Currently, this list includes both directly imaged planets and imaged planetary-mass companions ...
A natural number can be used to express the size of a finite set; more precisely, a cardinal number is a measure for the size of a set, which is even suitable for infinite sets. The numbering of cardinals usually begins at zero, to accommodate the empty set. ∅ {\displaystyle \emptyset }
In mathematics, for a function , the image of an input value is the single output value produced by when passed . The preimage of an output value is the set of input values that produce . More generally, evaluating at each element of a given subset of its domain produces a set, called the " image of under (or through) ".
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