01672nas a2200241   4500000000100000000000100001008004100002260001200043653001300055653002700068653001300095653002100108653001800129100001800147700001800165700002200183245006600205856009800271300001000369490000600379520103100385022001401416       2014                            d  c06/201410aInternet10aInformation Technology10aSecurity10aImage Processing10aData Security1 aPushkar Dixit1 aNishant Singh1 aJay Prakash Gupta00aRobust Lossless Semi Fragile Information Protection in Images  uhttp://www.ijimai.org/journal/sites/default/files/files/2014/05/ijimai20142_6_9_pdf_92745.pdf  a75-880 v23 aInternet 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 unauthorized 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 Peak signal-to-noise ratio (PSNR) while hiding large amount of data into smoother regions.  a1989-1660