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標題Title: Reversible data hiding based on histogram modification of pixel differences
作者Authors: 張家瑋
上傳單位Department: 資訊工程系
上傳時間Date: 2010-6-23
上傳者Author: 張家瑋
審核單位Department: 資訊工程系
審核老師Teacher: 林志鴻
檔案類型Categories: 研究生論文報告Thesis
關鍵詞Keyword: Image authentication,lossless watermarking,reversible data hiding
摘要Abstract: In this letter, we present a reversible data hiding
scheme based on histogram modification. We exploit a binary
tree structure to solve the problem of communicating pairs of
peak points. Distribution of pixel differences is used to achieve
large hiding capacity while keeping the distortion low. We also
adopt a histogram shifting technique to prevent overflow and
underflow. Performance comparisons with other existing schemes
are provided to demonstrate the superiority of the proposed
scheme.

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2010_6_45a48669.ppt 2338Kb ppt 712 1070
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