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Robust Lossless Image Data
Hiding Designed for Semi-Fragile
Image Authentication
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR
VIDEO TECHNOLOGY, VOL. 18, NO. 4, APRIL 2008
Authors:
Zhicheng Ni, Yun Q. Shi, Fellow, IEEE, Nirwan Ansari, Senior Member, IEEE,
Wei Su, Senior Member, IEEE, Qibin Sun, and Xiao Lin, Senior Member, IEEE
Adviser: Jiin -Chiou Cheng
Reporter :Wei-De Hsu
Outlines
Introductions
A Novel Robust Lossless Image Data Hiding
A Robust Statistical Quantity Used to Embed Data
Differentiating Bit-Embedding Schemes Based on Different
Grayscale Distributions Within a Block of Pixels
Error Correction Code
Permutation of Message Bits
Data Embedding Pseudo Code and Diagram
Data Extraction
Experimental results
CONCLUSION
Introductions
Novel Robust Lossless Image Data Hiding
A Robust Statistical Quantity Used to Embed Data
1 n
   (ai  bi )
n i 1
A Robust Statistical Quantity Used to Embed Data
Novel Robust Lossless Image Data Hiding
Differentiating Bit-Embedding Schemes Based on Different
Grayscale Distributions Within a Block of Pixels
A Novel Robust Lossless Image Data Hiding
Category 1:
• case 1
• case 2
Novel Robust Lossless Image Data Hiding
Category 2:
Novel Robust Lossless Image Data Hiding
Case 3
1
2
Novel Robust Lossless Image Data Hiding
Category 4:
• case 1
• case 1