High capacity data hiding methods based on spline interpolation

Steganography is the art of dissimulating information into a digital signal like audio, image, or video. It is the technique of hiding secret data into a carrier to convey messages. Digital images are one of the media that is suitable to convey messages due to several reasons. Firstly, digital images are often transmitted over the Internet which would arouse little suspicion. Secondly, the high correlation between pixels provides rich space for data embedding.