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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 ...
Data erasure. Data erasure (sometimes referred to as data clearing, data wiping, or data destruction) is a software-based method of data sanitization that aims to completely destroy all electronic data residing on a hard disk drive or other digital media by overwriting data onto all sectors of the device in an irreversible process.
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 ...
Gutmann method. The Gutmann method is an algorithm for securely erasing the contents of computer hard disk drives, such as files. Devised by Peter Gutmann and Colin Plumb and presented in the paper Secure Deletion of Data from Magnetic and Solid-State Memory in July 1996, it involved writing a series of 35 patterns over the region to be erased.
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Mr. Clean's Magic Eraser is literally pure magic, a lifesaver for messy cooks, a favorite for parents of toddlers, a go-to for coffee addicts. No matter what, a Magic Eraser can do wonders for ...
Eraser. Using an eraser. An eraser (also known as a rubber in some Commonwealth countries, including South Africa [ 1][ 2][ 3] from which the material first used got its name) is an article of stationery that is used for removing marks from paper or skin (e.g. parchment or vellum ). Erasers have a rubbery consistency and come in a variety of ...
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