Image processing: Difference between revisions
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#REDIRECT [[digital image processing]] |
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techniques to the domain of [[images]] — two-dimensional [[signal]]s such as [[photography|photographs]] or [[video]]. |
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{{Authority control}} |
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Most of the signal processing concepts that apply to one-dimensional signals — such as [[resolution]], [[dynamic range]], [[bandwidth]], [[filter (signal processing)| filtering]], etc. — extend naturally to images as well. However, image processing brings some new concepts — such as [[connected|connectivity]] and [[rotational invariance]] — that are meaningful or useful only for two-dimensional signals. Also, certain one-dimensional concepts — such as [[differential operators]], [[edge detection]], and [[domain modulation]] — become substantially more complicated when extended to two dimensions. |
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A few decades ago, image processing was done largely in the [[analog]] domain, chiefly by [[optics|optical]] devices. Optical methods are inherently [[parallel]], and for that reason they are still essential to [[holography]] and a few other applications. However, as [[computers]] keep getting faster, analog techniques are being increasingly replaced by [[digital image processing]] techniques — which are more versatile, reliable, accurate, and easier to implement. |
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==See also== |
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* [[optics]] |
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* [[photography]] |
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* [[imaging]] |
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* [[computer vision]] |
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* [[computer graphics]] |
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==External links== |
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*[http://homepages.inf.ed.ac.uk/rbf/HIPR2/ Hypermedia Image Processing Reference] |
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[[de:Bildverarbeitung]] |
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[[fr:Traitement d'image]] |
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[[ja:コンピュータビジョン]] |
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[[nl:Beeldbewerking]] |
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[[th:การประมวลผลภาพ]] |
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Latest revision as of 11:12, 12 November 2022
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