Image processing: Difference between revisions

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In [[imaging science]], '''image processing''' is processing of images using mathematical operations by using any form of [[signal processing]] for which the input is an image, a series of images or a video, such as a [[photograph]] or [[video frame]]; the output of image processing may be either an image or a set of characteristics or [[parameter]]s related to the image.<ref name="GonzalezWoods2008">{{cite book|author1=Rafael C. Gonzalez|author2=Richard E. Woods|title=Digital Image Processing|url=https://books.google.com/books?id=8uGOnjRGEzoC|year=2008|publisher=Prentice Hall|isbn=978-0-13-168728-8|pages=1–3}}</ref> Most image-processing techniques involve isolating the individual color planes of an image and treating them as [[two-dimensional]] [[signal (electrical engineering)|signal]] and applying standard signal-processing techniques to them. Images are also processed as [[three-dimensional]] signals with the third dimension being time or the z-axis.

Image processing usually refers to [[digital image processing]], but [[Optical engineering|optical]] and [[analog image processing]] also are possible. This article is about general techniques that apply to all of them. The ''acquisition'' of images (producing the input image in the first place) is referred to as imaging.<ref name="hornak2002">Joseph P. Hornak, ''Encyclopedia of Imaging Science and Technology'' ([[John Wiley & Sons]], 2002) {{ISBN|9780471332763}}</ref>

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In modern sciences and technologies, images also gain much broader scopes due to the ever growing importance of [[scientific visualization]] (of often large-scale complex scientific/experimental data). Examples include [[microarray]] data in genetic research, or real-time multi-asset portfolio trading in finance. [[Microscope image processing]] specializes in the processing of images obtained by microscope.

== See also ==

{{Portal|Computer graphics}}

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* [[Photo manipulation]]

== References ==

{{Reflist|30em}}

== Further reading ==

* {{cite book

|author = Tinku Acharya and Ajoy K. Ray

|title = Image Processing -– Principles and Applications

|year = 2006

|url = https://books.google.com/books?id=smBw4-xvfrIC&lpg=PP1&dq=image%20processing%20ajoy%20ray&pg=PP1#v=onepage&q=&f=false

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* {{cite book

|author=Tony F. Chan and Jackie (Jianhong) Shen

|title=Image Processing and Analysis -– Variational, PDE, Wavelet, and Stochastic Methods

|publisher=Society of Industrial and Applied Mathematics

|year=2005

|isbn=0-89871-589-X

}}

* {{cite book

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|publisher=CRC Press

|year=2011

|isbn=9781439840450978-1-4398-4045-0

|url = https://books.google.fr/books/about/The_Image_Processing_Handbook_Fourth_Edi.html?id=OZVeoomxxhYC&redir_esc=y

}}

== External links ==

<!-- Put links about DIGITAL image processing in its own article. -->

* [https://archive.org/details/Lectures_on_Image_Processing Lectures on Image Processing], by Alan Peters. Vanderbilt University. Updated 7 January 2016.

* [http://www.ipol.im/ Image Processing On Line] – Open access journal with image processing algorithms, open source implementations, and demonstrations

* [http://iprg.co.in/ IPRG] Open group related to image processing research resources

* [http://www.BareImagesToolboxbareimagestoolbox.com/ Bare Images Toolbox] Online image processing and analysis application

{{Authority control}}