Reversible Data Hiding in Encrypted Image

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Reversible Data Hiding in Encrypted Image

• SOURCE IEEE SIGNAL PROCESSING LETTERS, VOL.
  18,
• NO. 4, APRIL 2011
• AUTHOR XINPENG ZHANG
• SPEAKER SZU-TING WANG
• DATE 2011/05/04

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Outline

• Proposed scheme
• Flowchart
• Image encryption
• Data embedding
• Data extraction and image recovery
• Experimental results
• Conclusions

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Proposed scheme-flowchart
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Proposed Scheme-image encryption
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Proposed Scheme-data embedding
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Proposed scheme-data extraction and image recovery
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Proposed scheme-data extraction and image recovery
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Experimental results
(a) original image (b) encrypted image (c)
decrypted image with embedded data
Blocks of incorrect bit-extraction with s8
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Experimental results
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Conclusions

• Data can be correctly extracted
• Data hider does not know the original content and
  someone without data-hiding key can not extract
  the data