Medical Image Steganography: Study of Medical Image Quality Degradation when Embedding Data in the Frequency Domain
Mahmoud I. Khalil · International Journal of Computer Network and Information Security · 2017
Steganography is the discipline of invisible communication by hiding the exchanged secret information (message) in another digital information media (image, video or audio).The existence of the message is kept indiscernible in sense that no one, other than the intended recipient, suspects the existence of the message.The majority of steganography techniques are implemented either in spatial domain or in frequency domain of the digital images while the embedded information can be in the form of plain or cipher message.Medical image steganography is classified as a distinctive case of image steganography in such a way that both the image and the embedded information have special requirements such as achieving utmost clarity reading of the medical images and the embedded messages.There is a contention between the amount of hidden information and the caused detectable distortion of image.The current paper studies the degradation of the medical image when undergoes the steganography process in the frequency domain.