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Watermark. A watermark is an identifying image or pattern in paper that appears as various shades of lightness/darkness when viewed by transmitted light (or when viewed by reflected light, atop a dark background), caused by thickness or density variations in the paper. [1] Watermarks have been used on postage stamps, currency, and other ...
Digital on-screen graphic. A digital on-screen graphic, digitally originated graphic ( DOG, bug, [1] network bug, or screenbug) is a watermark-like station logo that most television broadcasters overlay over a portion of the screen area of their programs to identify the channel. They are thus a form of permanent visual station identification ...
Since a digital copy of data is the same as the original, digital watermarking is a passive protection tool. It just marks data, but does not degrade it or control access to the data. One application of digital watermarking is source tracking. A watermark is embedded into a digital signal at each point of distribution.
Wikipedia:Removal of non-free images. 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 ...
Yellow dots on white paper, produced by color laser printer (enlarged, dot diameter about 0.1 mm) A Machine Identification Code (MIC), also known as printer steganography, yellow dots, tracking dots or secret dots, is a digital watermark which certain color laser printers and copiers leave on every printed page, allowing identification of the device which was used to print a document and ...
For the prefix "Stego-" as used in taxonomy, see List of commonly used taxonomic affixes. The same image viewed by white, blue, green, and red lights reveals different hidden numbers. Steganography ( / ˌstɛɡəˈnɒɡrəfi / ⓘ STEG-ə-NOG-rə-fee) is the practice of representing information within another message or physical object, in such ...
Transparency (graphic) GIF animation of an Apollonian sphere packing with transparent background. Transparency in computer graphics is possible in a number of file formats. The term "transparency" is used in various ways by different people, but at its simplest there is "full transparency" i.e. something that is completely invisible.
Non-free content must be a work which has been published or publicly displayed outside Wikipedia by (or with permission from) the copyright holder, or a derivative of such a work created by a Wikipedia editor. Content. Non-free content meets general Wikipedia content standards and is encyclopedic. Media-specific policy.
Barack Obama's birth certificate on security paper.. Security paper is a paper used in security printing that incorporates features that can be used to identify or authenticate a document as original, e.g., watermarks or invisible fibres in paper, or features that demonstrate tamper evidence when fraud is attempted, e.g., to remove or alter print such as amounts or signatures on a cheque.
JW Player. JW Player is a New York based company that has developed a video player software of the same name. [1] The player, for embedding videos onto web pages, is used by news, video hosting companies, and for self- hosted web videos. The company has also created the video management software "JW Platform", formerly known as "Bits On The Run".