1M. Tech Student (Signal Processing), Electronics and Communication Engineering, Ambedkar Institute of Advanced Communication Technologies & Research, Delhi, India
2Assistant Professor, Electronics and Communication Engineering, Ambedkar Institute of Advanced Communication Technologies & Research, Delhi, India
Online published on 31 October, 2017.
In this paper we are hiding data into two different ways one is data hiding before encryption and other is data hiding after encryption. We are hiding the data into the image by using data hiding key firstly before encryption and then hiding the data into the image after encryption. At the receiver side the original image can be recovered by providing the same key for decryption as done in encryption in order to get the hidden data. Comparison of two retrieved image is done by the PSNR. The results of data hiding after the encryption are much better than that of data hiding into the image before encryption. The embedding rate is also increased by 2.23% using data hiding after encryption than data hiding before encryption.
Data Hiding, Data Embedding, Data Extraction, Image Extraction
