Image analysis is the extraction of meaningful information from images; mainly from digital images by means of digital image processing techniques. Image analysis tasks can be as simple as reading bar coded tags or as sophisticated as identifying a person from their face.
Computers are indispensable for the analysis of large amounts of data, for tasks that require complex computation, or for the extraction of quantitative information. On the other hand, the human visual cortex is an excellent image analysis apparatus, especially for extracting higher-level information, and for many applications — including medicine, security, and remote sensing — human analysts still cannot be replaced by computers. For this reason, many important image analysis tools such as edge detectors and neural networks are inspired by human visual perception models.
Read more about Image Analysis: Computer Image Analysis, Techniques, Digital Image Analysis, Object-based Image Analysis
Famous quotes containing the words image and/or analysis:
“The whole world is an omen and a sign. Why look so wistfully in a corner? Man is the Image of God. Why run after a ghost or a dream? The voice of divination resounds everywhere and runs to waste unheard, unregarded, as the mountains echo with the bleatings of cattle.”
—Ralph Waldo Emerson (1803–1882)
“A commodity appears at first sight an extremely obvious, trivial thing. But its analysis brings out that it is a very strange thing, abounding in metaphysical subtleties and theological niceties.”
—Karl Marx (1818–1883)