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Basics of image editing. Raster images are stored in a computer in the form of a grid of picture elements, or pixels. These pixels contain the image's color and brightness information. Image editors can change the pixels to enhance the image in many ways. The pixels can be changed as a group, or individually, by the sophisticated algorithms ...
Noise reduction is the process of removing noise from a signal. Noise reduction techniques exist for audio and images. Noise reduction algorithms may distort the signal to some degree. Noise rejection is the ability of a circuit to isolate an undesired signal component from the desired signal component, as with common-mode rejection ratio .
Non-free content can be used on Wikipedia in certain cases (for example, in some situations where acquiring a freely licensed image for a particular subject is not possible), but only within the United States legal doctrine of fair use, and in accordance with Wikipedia's own non-free content criteria as set out below.
Removal of non-free images. Shortcuts. WP:RFUI. WP:FUIR. The ninth item of Wikipedia’s policy for non-free content states that non-free images should only be used in the article namespace (not disambiguation pages), and goes further into the underlying reasons for the policy. This issue is important because copyright complaints are a very ...
The history of computer art predates the computer art scene for several decades, with the first experiments having taken place in the early 1950s. Devices like plotters and teletypewriters were commonly used instead of video display screens. The earliest precursors to ASCII art can be found in RTTY art, that is, pictures created by amateur ...
The Free Nations of Post-Russia Forum ( FNRF or FSNR; Russian: Форум свободных народов Построссии, romanized : Forum svobodnykh narodov Post-Rossii) is a forum founded by Ukrainian restaurant business owner Oleg Magaletsky, [1] exiled Russian separatists, as well as foreign sympathizers, which advocates for the ...