A robust semi fragile lossless image data hiding approach. (2nd February 2015)

• Record Type: Journal Article
• Authors: Dixit, Pushkar; Singh, Nishant; Gupta, Jay Prakash; Agrawal, Dev Drume; Kumar, Vinay
• Is Part Of: International journal of computational vision and robotics. Volume 5:Number 1(2015)
• Page Start: 1
• Page End: 22
• Publication Date: 2015-02-02
• Subjects: data security -- lossless data hiding -- semi fragile -- encryption -- decryption -- internet security; Computer vision -- Periodicals; Robotics -- Periodicals; Artificial intelligence -- Periodicals; 006.3705
• Languages: English
• ISSNs: 1752-9131

Abstract

Internet security finds it difficult to keep the information secure and to maintain the integrity of the data. Sending messages over the internet secretly is one of the major tasks as it is widely used for passing the message. In order to achieve security there must be some mechanism to protect the data against unauthorised access. A lossless data hiding scheme is proposed in this paper which has a higher embedding capacity than other schemes. Unlike other schemes that are used for embedding fixed amount of data, the proposed data hiding method is block-based approach and it uses a variable data embedding in different blocks which reduces the chances of distortion and increases the hiding capacity of the image. When the data is recovered the original image can be restored without any distortion. Our experimental results indicate that the proposed solution can significantly support the data hiding problem. We achieved good PSNR while hiding large amount of data into smoother regions.