The multimedia security is becoming more and more important as the data being exchanged
on the Internet is increasing exponentially. Though cryptography is one of the methods …

Image steganography is the art of hiding information into a cover image. It derives from the
Greek for covered writing and eventually means “to hide in the plain sight”. In this paper a …

At the moment, with the great development of information and communications technology,
the transfer of confidential and sensitive data through public communications such as the …

In this paper, we propose a novel image steganography technique with an adaptive
embedding scheme that combines the methods of edge detection and hybrid Hamming …

Steganography is a method for inserting digital data within a different digital medium like
text, pictures, sound signals, or film signals, while not exposing its occurrence in the …

A novel image steganography method based on hyperchaotic map and DNA sequence is
presented. Four chaotic sequences are generated with 4-D hyperchaotic system and initial …

In this paper a high capacity data hiding technique based on hybrid edge detection and
even-odd pixel separation is proposed. The even-odd sub planes of Red, Green and Blue of …

In this paper, a novel image steganography is proposed, which is based on contourlet
transform and hill cipher. Firstly, cover image is decomposed with contourlet transform …

Transferring data via an insecure network has become a challenge among researchers in
this fast-growing technological world. In this paper, a double-layer security framework based …

在非下采样Contourlet 变换(NSCT) 和Hill 编码的基础上, 提出了一种新的隐写方法.
首先把载体图像用NSCT 进行分解, 得到一幅低频和若干幅高频图像. NSCT …