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| Digital
printing is the reproduction of digital images on physical
surface, such as common or photographic paper, film,
cloth, plastic, etc.
Digital imaging or digital image acquisition is the
creation of digital images, typically from a physical
object. The term is often assumed to imply or include
the processing, compression, storage, printing, and
display of such images. |
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The printing press remains
the machine of choice for high-volume, professional publishing. However,
as printers have improved in quality and performance, many jobs which
used to be done by professional print shops are now done by users
on local printers; see desktop publishing.
The world's first computer printer was a 19th-century mechanically
driven apparatus invented by Charles Babbage for his Difference Engine.
Digital image authentication is an emerging issue for the providers
and producers of high resolution digital images such as health care
organizations, law enforcement agencies and insurance companies. There
is currently no method available to analyze a digital image and determine
if it has been altered or not. However, there are some technologies
on the horizon which are useful in confirming the non-alteration of
images whose original producer is known.
Although there are many available, Adobe Photoshop is one of the most
famous tools for digital imaging and is used by many professionals.
These programs can be used to create new images and edit existing
ones.
Digital photography, as opposed to film photography, uses electronic
devices to record the image as binary data. This facilitates storage
and editing of the images on personal computers, and also the ability
to show and delete unsuccessful images immediately on the camera itself.
Digital cameras now outsell film cameras and include features not
found in film cameras such as the ability to shoot video and record
audio. Some other devices, such as mobile phones, now include digital
photography features.
An e-book sometimes called an electronic book, is an electronic (or
digital) equivalent of a conventional printed book. The term has occasionally
been used ambiguously to refer to either an individual work in a digital
format, or a hardware device used to read books in digital format,
more specifically called an e-book device or e-book reader. E-books
are an emerging and rapidly changing technology, that can branch to
include other formats, such as a online magazines, such as the Grantville
Gazette, published by Baen's Books, or digital books designed to be
listened to as audio books. |
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