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Digital Imaging
Post: #1

I want info about Digital Imaging please
Post: #2
The creation of digital images, is called Digital imaging or digital image acquisition.
A digital image may be created directly from a physical scene by a camera or similar devices.Finally, a digital image can also be computed from a geometric model or mathematical formula.

Reference:
http://en.wikipediawiki/Digital_imaging
Post: #3
More Info About Digital Imaging


A digital image may be created directly from a physical scene by a camera or similar devices. Alternatively, it may be obtained from another image in an analog medium, such as photographs, photographic film, or printed paper, by an image scanner or similar device. Many technical images—such as those acquired with tomographic equipment, side-scan sonar, or radio telescopes—are actually obtained by complex processing of non-image data. This digitalization of analog real-world data is known as digitizing, and involves sampling (discretization) and quantization.

Finally, a digital image can also be computed from a geometric model or mathematical formula. In this case the name image synthesis is more appropriate, and it is more often known as rendering.

Digital image authentication is an emerging issue[citation needed] for the providers and producers of high resolution digital images such as health care organizations, law enforcement agencies and insurance companies. There are methods emerging in forensic science to analyze a digital image and determine if it has been altered.


refered by :::-http://en.wikipediawiki/
 

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