Image Steganography Based on DFrFT
Subhanchi Gupta, Navneet Kaur, Praneet Sizariya · IOSR Journal of Electronics and Communication Engineering · 2014
As the escalation of internet is one of the main factor of information technology, data hiding techniques has taken a significant role for the transfer of multimedia content.There are many ways to convert data, so it can be understood only by one who knows how to returns it to its original form.The best way to achieve such secure communication is steganography.It is having skill of hiding data in a way to avoid detection by hackers.The Steganography is used to transmit information in a secret way from one place to other place through public channel.Steganography hides the subsistence of a data so that if successful it generally attracts no doubt at all.Hiding a secret message within a larger one in such a way that a viewer cannot detect the presence of contents of the secret message is steganography.In this research paper we propose a steganography technique which embeds the secret messages in frequency domain.For this, various types of transform can be used, we are combining Discrete Fractional Fourier transform (DFrFT) and Least Significant Bit (LSB) algorithm to enhance the security of image.MATLAB platform is used for simulation; results are shown in the form of peak signal to noise ratio (PSNR).