DIGITAL IMAGE AND TEXT DATA SECURITY IMPROVEMENT USING THE COMBINATION OF STENOGRAPHY AND EMBEDDING TECHNIQUES

Abstract

In today age of technology max of the data are exchanges through the internet. With advances of the innovation the computerized media has gone most popular data transfer apparatuses. So the security of the digital data is need of today generation, the digital data includes text, images, audio, video. For the protection of the digital data many techniques can be used such as the embedding, encryption, data hiding etc. To secure information, cryptography and Steganography are widely used. In this paper present a digital image and text data security improvement technique using the combination of stenography and embedding. For the Steganography the DCT technique is used and for the embedding data LSB technique is used.  For better security purpose required the value of the MSE is low and value of the PSNR is high. So in this work got the value of the MSE is low and the value of the PSNR is high then previous work done. By using this proposed technique achieve the security of secret text and secret image is very high level and robust.