Image

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An image (from Latin imago) is an artifact, or has to do with a two-dimensional (a picture), that has a similar appearance to some subject—usually a physical object or a person.

Images may be two-dimensional, such as a photograph, screen display, and as well as a three-dimensional, such as a statue. They may be captured by optical devices—such as cameras, mirrors, lenses, telescopes, microscopes, etc. and natural objects and phenomena, such as the human eye or water surfaces.

The word image is also used in the broader sense of any two-dimensional figure such as a map, a graph, a pie chart, or an abstract painting. In this wider sense, images can also be rendered manually, such as by drawing, painting, carving, rendered automatically by printing or computer graphics technology, or developed by a combination of methods, especially in a pseudo-photograph.

A volatile image is one that exists only for a short period of time. This may be a reflection of an object by a mirror, a projection of a camera obscura, or a scene displayed on a cathode ray tube. A fixed image, also called a hard copy, is one that has been recorded on a material object, such as paper or textile by photography or digital processes.

A mental image exists in an individual's mind: something one remembers or imagines. The subject of an image need not be real; it may be an abstract concept, such as a graph, function, or "imaginary" entity. For example, Sigmund Freud claimed to have dreamt purely in aural-images of dialogues. The development of synthetic acoustic technologies and the creation of sound art have led to a consideration of the possibilities of a sound-image made up of irreducible phonic substance beyond linguistic or musicological analysis.

For more information about Image, read the full article at Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.

News tagged with images

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New algorithms for computerized, large-scale surveillance

Technology / Engineering

Dec 02, 2009 | 3 / 5 (2) | 0

A recent AFOSR-funded technology should enable the Air Force to achieve advances in object and target detection technology by using sophisticated algebraic theories called groups, rings and fields.

Google apologizes for offensive first lady image

Technology / Internet

Nov 24, 2009 | 5 / 5 (1) | 0

(AP) -- Google Inc. is apologizing for a racially offensive image of the First Lady that appears at the top of the list when users search for pictures of Michelle Obama on its site.

Icebergs head from Antarctica for New Zealand

Space & Earth / Earth Sciences

Nov 24, 2009 | 3 / 5 (5) | 1

(AP) -- Ships in the south Pacific Ocean have been alerted that hundreds of icebergs believed to have split off Antarctic ice shelves are drifting north toward New Zealand, officials said Tuesday.

New search technique for images and videos has broad applications

Technology / Computer Sciences

Nov 10, 2009 | 5 / 5 (9) | 5

(PhysOrg.com) -- Engineers at the University of California, Santa Cruz, have developed a powerful new approach to a fundamental problem in computer vision: how to program a computer to recognize or categorize ...

Experts: Placebo power behind many natural cures

Medicine & Health / Diseases

Nov 10, 2009 | 5 / 5 (2) | 1

(AP) -- People looking for natural cures will be happy to know there is one. Two words explain how it works: "I believe." It's the placebo effect - the ability of a dummy pill or a faked treatment to make people feel better, ...

Improving security with face recognition technology

Technology / Computer Sciences

Nov 10, 2009 | 3.5 / 5 (4) | 1

A number of U.S. states now use facial recognition technology when issuing drivers licenses. Similar methods are also used to grant access to buildings and to verify the identities of international travelers. ...

RIT scholars explore the impact of imaging on our reality

Other Sciences / Social Sciences

Nov 09, 2009 | not rated yet | 0

Imaging is the use of machines to enhance humans' ability to perceive things, often by producing visible phenomena that cannot be seen with the naked eye. But, can imaging technology distort reality and even change what humans ...

Early scents really do get 'etched' in the brain

Medicine & Health / Neuroscience

Nov 05, 2009 | 3 / 5 (2) | 0

Common experience tells us that particular scents of childhood can leave quite an impression, for better or for worse. Now, researchers reporting the results of a brain imaging study online on November 5th ...

Study reveals second pathway to feeling your heartbeat

Medicine & Health / Neuroscience

Nov 02, 2009 | 4.8 / 5 (5) | 0

A new study suggests that the inner sense of our cardiovascular state, our "interoceptive awareness" of the heart pounding, relies on two independent pathways, contrary to what had been asserted by prominent researchers.

From ecological Soviet-era ruin, a sea is reborn

Space & Earth / Environment

Oct 25, 2009 | 4.4 / 5 (11) | 3

(AP) -- Standing on the shore under the relentless Central Asian sun, Badarkhan Prikeyev drew on a cigarette and squinted into the distance as one fishing boat after another returned with the day's catch.

Alzheimer's lesions found in the retina

Medicine & Health / Research

Oct 21, 2009 | not rated yet | 0

(PhysOrg.com) -- The eyes may be the windows to the soul, but new research indicates they also may mirror a brain ravaged by Alzheimer's disease.

Technology brings new insights to ancient language

Technology / Engineering

Oct 14, 2009 | 4.9 / 5 (9) | 1

(PhysOrg.com) -- New technologies and academic collaborations are helping scholars at the University of Chicago analyze hundreds of ancient documents in Aramaic, one of the Middle East's oldest continuously ...

Seeing things: Researchers teach computers to recognize objects

Technology / Computer Sciences

Oct 13, 2009 | 3.2 / 5 (5) | 1

(PhysOrg.com) -- If computers could recognize objects, they could automatically search through hours of video footage for a particular two-minute scene. A tourist strolling down a street in a strange city ...