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Yellow dots on white paper, produced by color laser printer (enlarged, dot diameter about 0.1 mm) Printer tracking dots, also known as printer steganography, DocuColor tracking dots, yellow dots, secret dots, or a machine identification code (MIC), is a digital watermark which many color laser printers and photocopiers produce on every printed page that identifies the specific device that was ...
The Crown CA watermark found on many British Commonwealth stamps (seen from the reverse) A US postal stationery envelope from 1883 showing a clear watermark on laid paper In philately , the watermark is a key feature of a stamp, and often constitutes the difference between a common and a rare stamp.
After nearly 10 years of service, struggle, and sacrifice, we know well the costs of war. These efforts weigh on me every time I, as Commander-in-Chief, have to sign a letter to a family that has lost a loved one, or look into the eyes of a service member who’s been gravely wounded. So Americans understand the costs of war.
It has a watermark for The Other 98%, a popular left-leaning Facebook page, though New York Magazine reports that the above photo has now been removed from the page. RELATED: See Trump elected ...
Audio watermark, techniques for embedding hidden information into audio signals; Watermark (data file), a method for ensuring data integrity which combines aspects of data hashing and digital watermarking; Watermark (data synchronization), directory synchronization related programming terminology; Watermarking attack, an attack on disk ...
Fragile watermarks are commonly used for tamper detection (integrity proof). Modifications to an original work that clearly are noticeable, commonly are not referred to as watermarks, but as generalized barcodes. A digital watermark is called semi-fragile if it resists benign transformations, but fails detection after malignant transformations ...
Watermarks – There are possibly two watermarks on the euro notes. [83] [81] [86] They are: Standard watermark – Each denomination is printed on uniquely watermarked paper. This may be observed by holding the note up to the light. The thinner parts will show up brighter with backlight illumination and darker with a dark background.
Watermarks present an issue when archival videos are used for a documentary that strives to create a coherent story. In some cases, watermarks are blurred or digitally removed if possible to clean up the picture. In the absence of visually perceptible watermarks content control can be ensured with visually imperceptible digital watermarks. [2]