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Attacks on Image Watermark

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Submitted By shvmrulz
Words 3840
Pages 16
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WREQ WERGER AER AG GEGEQR EGGGG ERG E GQER ERG GEQR qwwde wer w etr ag a FQ WER FSD GT4 RQ AVSD GR WEF GR SDF SWF E GE WREQ WERGER AER AG GEGEQR EGGGG ERG E GQER ERG GEQR qwwde wer w etr ag a FQ WER FSD GT4 RQ AVSD GR WEF GR SDF SWF E GE WREQ WERGER AER AG GEGEQR EGGGG ERG E GQER ERG GEQR qwwde wer w etr ag a FQ WER FSD GT4 RQ AVSD GR WEF GR SDF SWF E GE WREQ WERGER AER AG GEGEQR EGGGG ERG E GQER ERG GEQR qwwde wer w etr ag a FQ WER FSD GT4 RQ AVSD GR WEF GR SDF SWF E GE WREQ WERGER AER AG GEGEQR EGGGG ERG E GQER ERG GEQR qwwde wer w etr ag a FQ WER FSD GT4 RQ AVSD GR WEF GR SDF SWF E GE WREQ WERGER AER AG GEGEQR EGGGG ERG E GQER ERG GEQR qwwde wer w etr ag a FQ WER FSD GT4 RQ AVSD GR WEF GR SDF SWF E GE WREQ WERGER AER AG GEGEQR EGGGG ERG E GQER ERG GEQR qwwde wer w etr ag a FQ WER FSD GT4 RQ AVSD GR WEF GR SDF SWF E GE WREQ WERGER AER AG GEGEQR EGGGG ERG E GQER ERG GEQR qwwde wer w etr ag a FQ WER FSD GT4 RQ AVSD GR WEF GR SDF SWF E GE WREQ WERGER AER AG GEGEQR EGGGG ERG E GQER ERG 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...hidden messages in such a way that no one, apart from the sender and intended recipient, suspects the existence of the message, a form of security through obscurity. Well through the 20th century, stenography was a necessary skill for secretaries, reporters, and other people who needed to quickly and accurately record written information. In all cases, the goal of stenography is to make it easy to write something down quickly and with great accuracy. Using stenography, someone can record information much more quickly than he or she could be writing. Like many security tools, steganography can be used for a variety of reasons, some good, some not so good. Legitimate purposes can include things like watermarking images for reasons such as copyright protection. Digital watermarks are similar to steganography in that they are overlaid in files, which appear to be part of the original file and are thus not easily detectable by the average person. Further,...

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