Reversible Data Hiding Using Improved Interpolation Technique

Reversible Data hiding is a process of hiding information into a cover image. There are various techniques used for hiding secret data. Audio, video, image, text, and picture can be used as a cover medium in data hiding. In images, Reversible Data Hiding (RDH) is a method which is very helpful in the recovery of original cover after the inserted message is extracted. This vital method is broadly used as a part of medical imagery, law forensics and military imagery, where no distortion of the original cover is permitted. Due to being first introduced, RDH has pulled in impressive research interest. In the last decade, reversible data hiding (RDH) has received much attention from the information hiding community. RDH is a special type of data hiding and data extraction technique and it ensures a lossless recovery of secret and cover data. Specifically, by RDH, not only the embedded message, the cover content can also be exactly extracted from the marked data.