Provide steganography using the recursive method in JPEG images

Subject Areas : Electronics Engineering

seyed ali akbar hashemi ¹ , Alireza Malahzadeh ² , Hamid Dehghani ³

1 - Bushehr Branch Researchers Club, Bushehr, Iran
2 - Bushehr Persian Gulf University, Bushehr, Iran
3 - Assistant Professor Malik Ashtar University of Technology

Received: 2021-05-21 Accepted : 2021-05-21 Published : 2018-06-22

Keywords:

Abstract :

 Increasing communication through digital media has made the issue of security very important. Steganography is a way to hide communication through cover media. Hiding information in JPEG images is very attractive because these types of images are the most widely used images on the Internet. There are many ways to detect the presence of hidden information in JPEG format, which are also very accurate, and so far there is no method that can be called secure. Due to the loss of JPEG‌ compression and the effects that this type of compression has on images, it has become impossible to use the spatial field for embedding easily. Embedding in the DCT‌ coefficients of the JPEG algorithm has also been discovered in any of the proposed methods. This paper presents a recursive method for embedding in the conversion domain before JPEG compression, which uses blocking other than the usual JPEG blocking. Embedding is done in such a way that JPEG‌ compression does not cause any errors when extracting data. These properties make the security and capacity of the method good.