A GENETIC ALGORITHM BASED IMAGE AUTHENTICATION TECHNIQUE USING DAUBECHIES WAVELET TRANSFORM (AGAIATDWT)

Abstract

The modern days  are being more occupied to the use of technology for facilitating day to day tasks. In this regard, authentication is turning to be great challenge when sending information from one place to another with the aid of  technology. In this research a frequency domain based image authentication technique using Daubechies Wavelet Transform has been proposed. This research is based on frequency domain where Daubechies Wavelet Transform is implemented. First daubechies wavelet transform is applied on a 4 × 4 mask in row major order. It generates transformed coefficients. Secret information from the authenticating image are embedded onto  the transformed coefficients. Reverse Daubechies Wavelet Transform is applied to generate spatial domain mask. This process is applied for the whole cover image to generate stego image.  Stego image is processed through Genetic Algorithm to generate optimized stego image. The performance of this research work has been evaluated by different parameters. This research work has been  compared with existing daubechies Wavelet Transformation based technique [7] and obtains better result as compared to the existing approach.