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A Secure Data Hiding Scheme for Binary Images

A Secure Data Hiding Scheme for Binary Images. Yu-Chee Tseng, Yu-Yuan Chen and Hsiang-Kuang Pan, IEEE Transactions on Communications, Vol.50, No.8, August 2002, pp.1227-1231 Advisor ： Dr. Chang, Chin-Chen Reporter ： Jian, Yong-Xin Date ： 2003/4/8. Outline. Introduction

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A Secure Data Hiding Scheme for Binary Images

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  1. A Secure Data Hiding Scheme for Binary Images Yu-Chee Tseng, Yu-Yuan Chen and Hsiang-Kuang Pan, IEEE Transactions on Communications,Vol.50, No.8, August 2002, pp.1227-1231 Advisor ：Dr. Chang, Chin-Chen Reporter ：Jian, Yong-Xin Date ：2003/4/8

  2. Outline • Introduction • The Proposed Data Hiding Scheme • Experimental Results • Conclusions

  3. Introduction • Steganography (data hiding) • Weight management • Hiding

  4. The Proposed Data Hiding Scheme • F: a host binary image, size :multiple of m*n • K: a secret key , size :m*n • W: a secret-weight matrix ,size :m*n • r: the number of bits to be embedded ,2r-1  m*n

  5. The Proposed Data Hiding Scheme • Weight Management r=2 110 011 123 Fi= 100 K= 110 W= 123 110 011 123 110 011 101 Fi  K= 100  110 = 010 110 011 101 Step1.

  6. The Proposed Data Hiding Scheme 101 123 103 [(Fi  K)  W]= 010  123 = 020 101 123 103 SUM [(Fi  K)  W]= 1+3+2+1+3=10 SUM [(Fi  K)  W] 2 (mod 22 ) Step2. Step3. Step4.

  7. The Proposed Data Hiding Scheme • Hiding r=3 Embedded bits:001 010 000 001

  8. The Proposed Data Hiding Scheme 24‧‧0 26‧‧2 34‧‧2 F  K 36‧‧4 Modified host image

  9. Experimental Results 8*8 1650 32*32 340 32*32 344 WL8*8 345 WL16*16 122 WL8*8 344

  10. Conclusions • Embed more information • Higher image quality • Higher security

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