When.com Web Search

Search results

1. Results From The WOW.Com Content Network

2. Void pantograph - Wikipedia

   en.wikipedia.org/wiki/Void_pantograph

   In security printing, void pantograph refers to a method of making copy-evident and tamper-resistant patterns in the background of a document. Normally these are invisible to the eye, but become obvious when the document is photocopied. Typically they spell out "void", "copy", "invalid" or some other indicator message. [1]

3. Digital on-screen graphic - Wikipedia

   en.wikipedia.org/wiki/Digital_on-screen_graphic

   In a typical digital on-screen graphic, the station's logo appears in a corner of the screen (in this simulated example, the bottom-right) 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 ...

4. Watermark - Wikipedia

   en.wikipedia.org/wiki/Watermark

   Some types of embossing, such as that used to make the "cross on oval" design on early stamps of Switzerland, resemble a watermark in that the paper is thinner, but can be distinguished by having sharper edges than is usual for a normal watermark. Stamp paper watermarks also show various designs, letters, numbers and pictorial elements.

5. Digital watermarking - Wikipedia

   en.wikipedia.org/wiki/Digital_watermarking

   A digital watermark is called imperceptible if the original cover signal and the marked signal are perceptually indistinguishable. A digital watermark is called perceptible if its presence in the marked signal is noticeable (e.g. digital on-screen graphics like a network logo, content bug, codes, opaque images). On videos and images, some are ...

6. Category:Images with watermarks - Wikipedia

   en.wikipedia.org/.../Category:Images_with_watermarks

   Caution: Before removing a watermark from a copyrighted image, please read the WMF's analysis of the legal ramifications of doing so. Requesting work You may request improvements at the Graphic Lab workshops :

7. Audio watermark - Wikipedia

   en.wikipedia.org/wiki/Audio_watermark

   An audio watermark is a unique electronic identifier embedded in an audio signal, typically used to identify ownership of copyright. It is similar to a watermark on a photograph. Digital watermarking is the process of embedding information into a signal (e.g. audio, video or pictures) in a way that is difficult to remove. If the signal is ...