different between preimage vs image
preimage
English
Etymology
pre- +? image.
Pronunciation
- Rhymes: -?m?d?
Noun
preimage (plural preimages)
- (mathematics) For a given function, the set of all elements of the domain that are mapped into a given subset of the codomain; (formally) given a function ƒ : X ? Y and a subset B ? Y, the set ƒ?1(B) = {x ? X : ƒ(x) ? B}.
- 1967 [Academic Press], Francois Treves, Topological Vector Spaces, Distributions and Kernels, 2006, Dover, page 22,
- The preimage of a neighborhood U of 0 in E must be a neighborhood of (0,x), since (0,x) is mapped into 0.
- 2003, Sergei K. Lando, Alexander K. Zvonkin, Graphs on Surfaces and Their Applications, Springer, page 56,
- Previously, maps and hypermaps were constructed as the preimages of a segment joining two of the three critical values.
- 2005, Oded Goldreich, Foundations of Cryptography: A Primer, now Publishers, page 24,
- Loosely speaking, saying that a function f is one-way implies that given y (in the range of f) it is infeasible to find a preimage of y under f.
- 1967 [Academic Press], Francois Treves, Topological Vector Spaces, Distributions and Kernels, 2006, Dover, page 22,
Synonyms
- (set of all elements that map into a given subset of the codomain of a function): inverse image
Hyponyms
- (set of all elements that map into a given subset of the codomain of a function): kernel
Derived terms
- preimage attack
Related terms
- image
Translations
Further reading
- Image (mathematics) on Wikipedia.Wikipedia
- Kernel (linear algebra) on Wikipedia.Wikipedia
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image
English
Etymology
From Middle English ymage, borrowed from Old French image, from Latin im?g? (“a copy, likeness, image”), from Proto-Indo-European *h?eym-; the same PIE root is the source of imitari (“to copy, imitate”); see imitate.
Pronunciation
- IPA(key): /??m?d??/
- Rhymes: -?m?d?
- Hyphenation: im?age
Noun
image (plural images)
- An optical or other representation of a real object; a graphic; a picture.
- A mental picture of something not real or not present.
- A statue or idol.
- (computing) A file that contains all information needed to produce a live working copy. (See disk image and image copy.)
- Most game console emulators do not come with any ROM images for copyright reasons.
- A characteristic of a person, group or company etc., style, manner of dress, how one is, or wishes to be, perceived by others.
- (mathematics) Something mapped to by a function.
- The number 6 is the image of 3 under f that is defined as f(x) = 2x.
- (mathematics) The subset of a codomain comprising those elements that are images of something.
- The image of this step function is the set of integers.
- (radio) A form of interference: a weaker "copy" of a strong signal that occurs at a different frequency.
- (obsolete) Show; appearance; cast.
- The face of things a frightful image bears.
Synonyms
- (representation): picture
- (mental picture): idea
- (something mapped to): value
- (subset of the codomain): range
Hyponyms
Derived terms
Related terms
Descendants
- German: Image
- Slovak: imidž
- Russian: ?????? (ímidž)
- Armenian: ???? (imi?)
Translations
Verb
image (third-person singular simple present images, present participle imaging, simple past and past participle imaged)
- (transitive) To represent by an image or symbol; to portray.
- 1718, Alexander Pope, The Iliad of Homer, London: Bernard Lintot, Volume IV, Observations on the Fifteenth Book, Note 14 on verse 252, p. 215,[2]
- This Representation of the Terrors which must have attended the Conflict of two such mighty Powers as Jupiter and Neptune, whereby the Elements had been mix’d in Confusion, and the whole Frame of Nature endangered, is imaged in these few Lines with a Nobleness suitable to the Occasion.
- 1791, James Boswell, The Life of Samuel Johnson, London: Charles Dilly, Volume I, p. 393,[3]
- […] his behaviour was, as I had imaged to myself, solemnly devout.
- 1817, Jane Austen, Persuasion, Chapter 11,[4]
- […] he repeated, with such tremulous feeling, the various lines which imaged a broken heart, or a mind destroyed by wretchedness, and looked so entirely as if he meant to be understood, that she ventured to hope he did not always read only poetry, and to say, that she thought it was the misfortune of poetry to be seldom safely enjoyed by those who enjoyed it completely […]
- 1850, Nathaniel Hawthorne, The Scarlet Letter, Boston: Ticknor, Reed & Fields, Chapter 16, p. 222,[5]
- [The road] straggled onward into the mystery of a primeval forest. This hemmed it in so narrowly, and stood so black and dense on either side, and disclosed such imperfect glimpses of the sky above, that, to Hester’s mind, it imaged not amiss the moral wilderness in which she had so long been wandering.
- 2000, Mary Ann Schwartz, BarBara Marliene Scott, Madine M. L. Vanderplaat, Sociology: Making Sense of the Social World (page 51)
- For example, in one use of content analysis, U.S. researchers Victoria Holden, William Holden, and Gary Davis (1997) examined the growing controversy over the racial imaging of indigenous peoples symbolized in sports team nicknames […]
- 1718, Alexander Pope, The Iliad of Homer, London: Bernard Lintot, Volume IV, Observations on the Fifteenth Book, Note 14 on verse 252, p. 215,[2]
- (transitive) To reflect, mirror.
- 1829, Alfred, Lord Tennyson, “Timbuctoo” in The Poems of Alfred Lord Tennyson, London: J.M. Dent & Sons, 1906, Volume I, p. 10,[6]
- See’st thou yon river, whose translucent wave,
- Forth issuing from the darkness, windeth through
- The argent streets o’ th’ City, imaging
- The soft inversion of her tremulous Domes,
- 1841, Charles Dickens, The Old Curiosity Shop, London: Chapman & Hall, Chapter 71, p. 210,[7]
- Sorrow was dead indeed in her, but peace and perfect happiness were born; imaged in her tranquil beauty and profound repose.
- 1843, Thomas Carlyle, Past and Present, London: Chapman & Hall, Book 2, Chapter 2, “St. Edmundsbury,” p. 43,[8]
- […] we look into a pair of eyes deep as our own, imaging our own, but all unconscious of us; to whom we, for the time, are become as spirits and invisible!
- 1829, Alfred, Lord Tennyson, “Timbuctoo” in The Poems of Alfred Lord Tennyson, London: J.M. Dent & Sons, 1906, Volume I, p. 10,[6]
- (transitive) To create an image of.
- (transitive, computing) To create a complete backup copy of a file system or other entity.
Translations
Further reading
- image on Wikipedia.Wikipedia
References
- image at OneLook Dictionary Search
- image in Keywords for Today: A 21st Century Vocabulary, edited by The Keywords Project, Colin MacCabe, Holly Yanacek, 2018.
- "image" in Raymond Williams, Keywords (revised), 1983, Fontana Press, page 158.
- image in The Century Dictionary, New York, N.Y.: The Century Co., 1911.
- image in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913.
Anagrams
- gamie
Dutch
Etymology
Borrowed from English image.
Pronunciation
- Hyphenation: ima?ge
Noun
image n (plural images)
- image (characteristic perceived by others)
Synonyms
- imago
French
Etymology
From Old French image, borrowed from Latin imago, imaginem (“a copy, likeness, image”).
Pronunciation
- IPA(key): /i.ma?/
- Rhymes: -a?
- Homophones: images, imagent
- Hyphenation: i?mage
Noun
image f (plural images)
- picture, image
- (television, film) frame
Synonyms
- métaphore
- reflet
- symbole
- vision
Derived terms
Descendants
- Turkish: imaj
Related terms
- imager
- imagerie
- imaginer
Verb
image
- first-person singular present indicative of imager
- third-person singular present indicative of imager
- first-person singular present subjunctive of imager
- third-person singular present subjunctive of imager
- second-person singular imperative of imager
Further reading
- “image” in Trésor de la langue française informatisé (The Digitized Treasury of the French Language).
Anagrams
- magie
Middle English
Noun
image
- Alternative form of ymage
Norwegian Bokmål
Etymology
Borrowed from English image.
Pronunciation
- IPA(key): /?m?d?/
- Rhymes: -?d?
Noun
image m or n (definite singular imagen or imageet, indefinite plural imager or image, definite plural imagene or imagea or imageene)
- image (how one wishes to be perceived by others)
Norwegian Nynorsk
Etymology
Borrowed from English image.
Pronunciation
- IPA(key): /?m?d?/
- Rhymes: -?d?
Noun
image m or n (definite singular imagen or imaget, indefinite plural imagar or image, definite plural imagane or imaga)
- image (how one wishes to be perceived by others)
Old French
Alternative forms
Etymology
Borrowed from Latin im?g?, im?ginem.
Noun
image f (oblique plural images, nominative singular image, nominative plural images)
- sight (something which one sees)
- image (pictorial representation)
- image (mental or imagined representation)
- image (likeness)
- statue (of a person)
Descendants
- ? English: image
- French: image
References
- Godefroy, Frédéric, Dictionnaire de l'ancienne langue française et de tous ses dialectes du IXe au XVe siècle (1881) (image, supplement)
image From the web:
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