Weighted fractional Fourier Transform based image Steganography

In this paper an innovative technique for image Steganography has been proposed based on Weighted fractional Fourier Transformation (WFRFT). The secret image is embedded in the intermediate domain of the cover image. Window size of 2 × 2 is selected from the cover image and converted into its intermediate domain between spatial and frequency by using WFRFT. Now, bits of the secret image, which are formed by converting them into binary form, are embedded within the two LSB positions of the real part of the transformed image. Finally, inverse WFRFT is performed to convert back from intermediate domain into spatial domain to generate the stego image. Secret image is received at recipient side through the reverse procedure of adopted at transmitter. The experimental results has demonstrated and discussed through histogram analysis for verifying the proposed technique.