计算机工程
計算機工程
계산궤공정
COMPUTER ENGINEERING
2009年
23期
136-137,140
,共3页
隐写%数据隐藏%像素差值%盲提取
隱寫%數據隱藏%像素差值%盲提取
은사%수거은장%상소차치%맹제취
steganography%data hiding%pixel-value difference%blind extraction
提出一种自适应的无损像素差分隐藏算法,利用像素块差值的最大值和门限值的关系,在平滑区域和边缘区域嵌入较多的隐藏信息,在中间地带嵌入较少的信息.实验结果表明,该算法可以提高数据隐藏的容量,实现隐藏信息的盲提取,有效抵抗差分直方图的攻击,无损恢复原始载体图像.
提齣一種自適應的無損像素差分隱藏算法,利用像素塊差值的最大值和門限值的關繫,在平滑區域和邊緣區域嵌入較多的隱藏信息,在中間地帶嵌入較少的信息.實驗結果錶明,該算法可以提高數據隱藏的容量,實現隱藏信息的盲提取,有效牴抗差分直方圖的攻擊,無損恢複原始載體圖像.
제출일충자괄응적무손상소차분은장산법,이용상소괴차치적최대치화문한치적관계,재평활구역화변연구역감입교다적은장신식,재중간지대감입교소적신식.실험결과표명,해산법가이제고수거은장적용량,실현은장신식적맹제취,유효저항차분직방도적공격,무손회복원시재체도상.
This paper proposes an adaptive lossless pixel differencing steganographic algorithm. By taking advantage of the relationship between the maximum value among the difference values of the pixel block and the threshold, it embeds more information in the smooth areas and the edge areas of the host image, while embedding less information in the middle gray image areas. Experimental results show that the algorithm can improve the embedding capacity, achieve blind abtraction of hidden information, resist difference histogram attack efficiently, and recover images losslessly.
