期刊名称：International Journal of Advanced Research in Computer Engineering & Technology (IJARCET)
印刷版ISSN：2278-1323
出版年度：2014
卷号：3
期号：1
页码：159-162
出版社：Shri Pannalal Research Institute of Technolgy
摘要：To maintaining the secrecy and confidentiality of images is a vibrant area of research, with two different approaches being followed, the first being encrypting the images through encryption algorithms using keys, the other approach involves hiding the data using data hiding algorithm to maintain the images secrecy. A content owner encrypts the original image using an encryption key, and a data-hider can embed additional data into the encrypted image using a data-hiding key though he does not know the original content. With an encrypted image containing additional data, a receiver may first decrypt it according to the encryption key, and then extract the embedded data and recover the original image according to the data-hiding key. We present a new concept for RGB image based data hiding. It introduces the concept of storing variable number of bits in each channel (R, G or B) of pixel based on the actual color values of that pixel: lower color component stores higher number of bits. It offers very high capacity for cover media compared to other. In secure transformation of data in encrypted image is to provide high network security for data transformation.
关键词：Cover image; Data hiding; Data extraction; Data ; recovery. Image encryption; Image decryption
