digital watermark
digital watermark
[‚dij·əd·əl ′wȯd·ər‚märk]digital watermark
A pattern of bits embedded into a file that is used to identify the source of illegal copies. For example, if a digital watermark is placed into a master copy of an audio CD or DVD movie, then all copies of that disc are uniquely identified. If a licensee were to manufacture and distribute them in areas outside of their authorized territories, the watermark provides a trace.The watermark developer has to find creative ways of altering the file without disturbing it for the user. It is difficult to embed a watermark within an ASCII file, which is just raw text. However, it is relatively easy to alter a few bits within audio, video and image formats without making a noticeable difference on playback or display.
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| WinZip's Watermark Function |
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| The popular WinZip utility performs numerous functions beyond simply encrypting a file. This is the dialog showing options for adding a digital watermark to certain image files. See WinZip. |
- self-limited disorder
- self-limitedly
- self-limited syndrome
- self limiting
- self-limiting
- self limiting activated solution of hypochlorite
- self-limiting ailment
- self-limiting condition
- self-limiting disease
- self-limiting disorder
- self-limiting syndrome
- self-liquidating
- self-liquidating bond
- self-liquidating bonds
- self-liquidating loan
- self-liquidating loans
- self-loader
- self-loaders
- self-loading
- self-loading cargo
- self-loading container and ribbon bridge transporter
- self-loading experimental model
- self loading freight
- self-loadingly
- self loading rifle