期刊名称：International Journal of Electrical and Computer Engineering
电子版ISSN：2088-8708
出版年度：2018
卷号：8
期号：4
页码：2468-2476
DOI：10.11591/ijece.v8i4.pp2468-2476
语种：English
出版社：Institute of Advanced Engineering and Science (IAES)
摘要：In this era of internet development, security of information sharing is the main problem being faced by human being. Data hiding technique is one of the solusion. However, hiding credential information within a multimedia file such as image reduces its visual quality. Therefore, unauthorized users may suspect the existance of secret data within that image. In the past years, various data hiding algorithms have been developed by researchers to overcome the problem of high distortion of stego image after data embedding process. Achieving on a high quality stego image, however, it is still a challenging problem. In this paper, we proposed a data hiding algorithm based on different expansion approach. It aims to enhance the quality of stego image for a given payload size. The new algorithm is evaluated on various medical images and the experimental results show that the visual quality is considerably improved. Therefore, a better choice of base point and a reduced difference expansion affect quality of stego image.
其他摘要：In this era of internet development, security of information sharing is the main problem being faced by human being. Data hiding technique is one of the solusion. However, hiding credential information within a multimedia file such as image reduces its visual quality. Therefore, unauthorized users may suspect the existance of secret data within that image. In the past years, various data hiding algorithms have been developed by researchers to overcome the problem of high distortion of stego image after data embedding process. Achieving on a high quality stego image, however, it is still a challenging problem. In this paper, we proposed a data hiding algorithm based on different expansion approach. It aims to enhance the quality of stego image for a given payload size. The new algorithm is evaluated on various medical images and the experimental results show that the visual quality is considerably improved. Therefore, a better choice of base point and a reduced difference expansion affect quality of stego image.
关键词：Information Technology; Computer and Informatics; Computer Science;Data hiding Information security Visual quality Data protection Secret data
