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DataHiding |
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DataHiding |
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A major concern for creators of digital content, whether it's Web content, music, or movies on digital disc, is to protect their work from unauthorised copying and distribution. IBM researchers have developed a technology called DataHiding that enables the embedding of data (such as digital IDs or captions) invisibly. Hiding Information
DataHiding is a technology that allows owners of content to embed data invisibly or inaudibly into other digital media, such as video, audio data, or still images. When the data is embedded, it is not written as part of the data header, but rather embedded directly into the digital media itself. This process changes the original digital data, but the change is so slight that it cannot be visually detected, and has no impact on the performance of the original data. The beauty of DataHiding is that it gives content creators a powerful means of marking their digital creations without affecting the end user's appreciation of it. The embedded information does not change the size of the original data, and it survives normal image processes such as compression and format transformation. Who Can Use It
DataHiding can be a useful tool for anyone associated with creating or distributing digital content. In addition to authors, it could be used by copyright agencies to detect unauthorised copies of digital content, by authorised reproduction studios to ensure that that have valid copies of digital content, or even for comments that can be inserted in various revisions of digital content. One of the biggest markets of DataHiding may be in the emerging DVD market. Content providers have been concerned about the ability of casual users to make a clear copy illegally. DataHiding technology could enable content creators and distributors to build systems that could effectively prevent illegal copying. |
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