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Data Hiding by Exploiting Modification Direction Technique Using Optimal Pixel Grouping

Outline. INTRODUCTIONPROPOSED METHODEXPERIMENTAL RESULTSCONCLUSION. 1.INTRODUCTION. In this paper, they proposed an optimized EMD method by analyzing the relationship between n and payload.The study involves using known payload on EMD to ascertain the least distortion result to begin the actual

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Data Hiding by Exploiting Modification Direction Technique Using Optimal Pixel Grouping

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    1. Source:2010 2nd international Conference on Education Technology and Computer (ICETC) Authors:Kai Yung Lin, Wien Hong, Jeanne Chen, Tung Shou Chen, Wen Chin Chiang Speaker:Cheng Hsu Date:2010/10/06 Data Hiding by Exploiting Modification Direction Technique Using Optimal Pixel Grouping

    2. Outline INTRODUCTION PROPOSED METHOD EXPERIMENTAL RESULTS CONCLUSION

    3. 1.INTRODUCTION In this paper, they proposed an optimized EMD method by analyzing the relationship between n and payload. The study involves using known payload on EMD to ascertain the least distortion result to begin the actual hiding process.

    4. optimal pixel adjustment process k?????????????bit?? OPAP???? ??? ??3???,???????????????? ? ??? ,?OPAP?????????0? ??,??? ?

    6. 2.PROPOSED METHOD ???:? ?????????????? ? ???:???????????? ???? ,???? ? ???:? ,??????; ,??????? ????+1; ??????? ????-1?

    7. This paper proposed a method to n calculate which result only in minimum distortion for the cover image.

    9. 3.EXPERIMENTAL RESULTS

    11. 4.CONCLUSION They have proposed an optimized EMD which can be manipulated for different payloads to have the most suitable grouping so that information may be embedded with the least distortion. The scheme prevents low PSNR from too many groups and payload smaller than that required of the original secret data.

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