湿影像的资讯隐藏技术

按一下以編輯母片文字樣式,第二層,第三層,第四層,第五層,按一下以編輯母片標題樣式,2022/1/8,#,湿影像的资讯隐藏技术,湿影像的资讯隐藏技术,第1页,2,Secrets,Sender,Receiver,Internet,Data Embedding,Steganography,-prison problem,Reversible data hiding,-Medical image,-Military,image,-Quality and capacity,Secrets,湿影像的资讯隐藏技术,第2页,3,0,1,2,3,4,1,2,3,4,0,2,3,4,0,1,0,1,2,3,4,0,1,2,3,4,255,255,p,2,p,1,0,1,2,3,4,0,1,2,3,4,0,2,4,1,3,0,1,2,3,4,0,Magic Matrix,Zhang,X.P.and Wang,S.Z.,“Efficient Steganographic Embedding by Exploiting Modification Direction,”,IEEE communications letters,vol.10,no.11,pp.1-3,Nov.,.,n,=2,F,(2,3)=3,s=1,(,p,1,p,2,)=(2,2),F(,p,1,p,2,)=(,1,*,p,1,+,2,*,p,2,)mod(,2,n,+1,),湿影像的资讯隐藏技术,第3页,4,Data Hiding Using Sudoku,(1/8),Spatial domain data embedding,Sudoku,A logic-based number placement puzzle,湿影像的资讯隐藏技术,第4页,5,Data Hiding Using Sudoku,(2/8),Property,Possible solutions:,6,670,903,752,021,072,936,960,(i.e.6.67110,21,),A Sudoku grid contains nine 3 3 matrices,each contains different digits from 1 to 9.,Each row and each column of a Sudoku grid also contain different digits from 1 to 9.,湿影像的资讯隐藏技术,第5页,6,1,2,Data hiding using Sudoku,(3/8),Review Zhang and Wangs method(Embedding),8,7,9,4,79,54,55,11,20,21,12,24,12,10,10,9,Extracting function:,0,1,2,3,4,0,1,2,3,4,5,6,7,0,1,2,3,4,5,6,7,8,9,10,11,8,9,10,11,255,0,1,2,3,4,0,1,255,2,3,4,0,1,2,3,4,0,1,4,0,1,2,3,4,0,1,2,3,4,:,0,2,3,1,2,3,4,0,1,2,3,4,0,1,2,3,4,0,1,2,3,4,0,2,3,4,0,1,2,3,4,0,1,2,3,4,0,1,2,3,4,0,1,2,3,4,0,1,4,0,1,2,3,4,0,1,3,4,0,2,3,1,2,3,4,0,1,2,3,4,0,1,2,3,4,0,1,2,3,4,0,1,2,3,4,0,1,2,3,4,0,1,2,3,4,0,1,2,3,4,0,1,2,3,4,0,1,2,3,0,1,2,3,4,0,1,2,3,4,0,1,0,2,4,1,3,0,2,4,1,3,0,2,:,:,:,:,:,:,:,:,:,:,:,:,Magic Matrix,Cover image,1000,2,1 3,5,Secret data,:,1000 1011,7,7,10,4,Stego image,p,1,p,2,湿影像的资讯隐藏技术,第6页,7,0,1,2,3,4,0,1,2,3,4,5,6,7,0,1,2,3,4,5,6,7,8,9,10,11,8,9,10,11,255,0,1,2,3,4,0,1,255,2,3,4,0,1,2,3,4,0,1,4,0,1,2,3,4,0,1,2,3,4,:,0,2,3,1,2,3,4,0,1,2,3,4,0,1,2,3,4,0,1,2,3,4,0,1,2,3,4,0,1,2,3,4,0,1,2,3,4,0,1,2,3,4,0,1,2,3,4,0,1,4,0,1,2,3,4,0,1,2,3,4,0,2,3,1,2,3,4,0,1,2,3,4,0,1,2,3,4,0,1,2,3,4,0,1,2,3,4,0,1,2,3,4,0,1,2,3,4,0,1,2,3,4,0,1,2,3,4,0,1,2,3,0,1,2,3,4,0,1,2,3,4,0,1,0,2,4,1,3,0,2,4,1,3,0,2,:,:,:,:,:,:,:,:,:,:,:,:,Magic Matrix,7,7,10,4,Stego image,1,3,5,Extracted secret data:1000,2,p,1,p,2,Data hiding using Sudoku,(4/8),Review Zhang and Wangs method(Extracting),湿影像的资讯隐藏技术,第7页,8,Data hiding using Sudoku,(5/8),-1,Reference Matrix,M,湿影像的资讯隐藏技术,第8页,9,Data hiding using Sudoku(Embedding),(6/8),8,7,11,12,79,54,55,11,20,21,12,24,12,10,10,9,Cover Image,Secret data,:,011 001 10,2,7,9,d,(,)=(8-8),2,+(4-7),2,),1/2,=3,d,(,)=(9-8),2,+(7-7),2,),1/2,=1,d,(,)=(6-8),2,+(8-7),2,),1/2,=2.24,7,9,Stego Image,min.,湿影像的资讯隐藏技术,第9页,10,Data hiding using Sudoku(Embedding),(7/8),8,7,11,12,79,54,55,11,20,21,12,24,12,10,10,9,Cover Image,d,(,)=(11-11),2,+(15-12),2,),1/2,=3,d,(,)=(15-11),2,+(12-12),2,),1/2,=4,d,(,)=(9-11),2,+(14-12),2,),1/2,=2.83,9,14,7,9,Stego Image,min.,2,7,9,Secret data,:,011 001 10,湿影像的资讯隐藏技术,第10页,11,Data hiding using Sudoku(Extracting),(8/8),9,7,9,14,Stego Image,Extracted data:,2,7,9,=011 001,2,湿影像的资讯隐藏技术,第11页,12,Magic Matrix,Du,c,K.,Chang,C.C.,“A steganographic scheme by fully exploiting modification directions,”,Technique Report of Feng-Chia University,.,r,=,F,(,p,i,p,j,)=(,t,-,1),p,i,+,t,p,j,)mod,t,2,t,bits per pixel pair,湿影像的资讯隐藏技术,第12页,13,Color retinal image,Segmented image,湿影像的资讯隐藏技术,第13页,14,Wet Paper Coding,Key,1,1,0,0,1,0,0,1,1,0,1,0,0,1,1,1,0,0,1,1,1,0,1,1,0,0,0,0,1,0,0,1,1,1,1,0,0,0,1,0,0,0,0,0,1,1,1,0,1,0,1,0,1,0,1,1,0,0,1,0,0,1,1,0,1,0,0,1,1,1,0,0,1,1,1,0,1,1,0,0,0,0,1,0,0,1,1,1,1,0,0,0,1,0,0,0,0,0,1,1,1,0,1,0,1,0,1,0,1,1,0,0,1,0,0,1,1,0,1,0,0,1,1,1,0,0,1,1,1,0,1,1,0,0,0,0,1,0,0,1,1,1,1,0,0,0,1,0,0,0,0,0,1,1,1,0,1,0,1,0,1,0,Fridrich,J.Goljan,M.,Lisonek,P.and Soukal,D.,“Writing on Wet Paper,”,IEEE Transactions on Signal Processing,vol.53,no.10,pp.3923-3935,湿影像的资讯隐藏技术,第14页,15,Wet Paper Coding,(2/2),Random Matrix,LSB of Cover Image,Secret Data,21,30,30,Cover Image,=,?,The important area is marked as wet pixel,20,30,31,Stego-image,湿影像的资讯隐藏技术,第15页,16,Wet Paper Coding with XOR Operation,Key,Eight groups,31,35,31,32,34,35,33,32,33,35,35,33,33,34,32,32,At least one dry pixel,Secrets:0 1 0 1 0 1 1 1,LSB(35),LSB(,31),LSB(32),1,35,31,33,LSB(31),0,30,Stego-pixels,30,35,31,33,34,35,33,33,32,35,34,33,33,35,32,33,湿影像的资讯隐藏技术,第16页,17,30,35,31,33,34,35,33,33,32,35,34,33,33,35,32,33,Secret Extracting,LSB(30)=,0,LSB(35)LSB(31)LSB(33)=,1,LSB(34)LSB(35)LSB(33)=,0,LSB(33)=,1,LSB(32)=,0,LSB(35)LSB(34)=,1,LSB(33)LSB(33)LSB(35)=,1,LSB(32)LSB(33)=,1,湿影像的资讯隐藏技术,第17页,18,Proposed Scheme,(1/6),Key,S,=3,1,2,3,1,0,0,Three types:,Restricted Pairs of Wet Pixels(RPW),-Non-restricted Pairs of Wet Pixels (NRPW),-Pairs of Dry Pixels(DP),Embeddable,湿影像的资讯隐藏技术,第18页,19,(,p,1,p,2,)=(31,35,),n,=2,Proposed Scheme,(2/6),S,=3,(,p,1,p,2,)=(33,35),x,y,湿影像的资讯隐藏技术,第19页,20,Proposed Scheme,(3/6),S,=1,(,p,1,p,2,)=(31,31),y,x,(,p,1,p,2,)=(31,32,),n,=2,湿影像的资讯隐藏技术,第20页,21,(,p,1,p,2,)=(33,32,),n,=2,Proposed Scheme,(4/6),S,=2,(,p,1,p,2,)=(34,32),湿影像的资讯隐藏技术,第21页,22,33,34,32