• arun kumar singh

While cryptography keeps obscure the shrouded substance of data, steganography gives a larger amount of information security by making even the presence of concealed data mystery, it is the specialty of dissimulating data in computerized media thinking about it as an unremarkable help. The gliding point in the coefficients of the change can cause a misfortune in data. To avert this issue, information is implanted in the whole number piece of high recurrence coefficients so that builds the impalpability. In this paper comparative study of various methods have been discussed. Comparison were made based on PSNR and Bit Error Rate calculated for the given method. Broad analyses on assortment of pictures were performed and the outcomes demonstrate that the proposed strategies give better picture quality and a high subtlety in examination with earlier works. This was accomplished utilizing an irregular key that scrambles the area of the pixels where information is covered up.

steganography

"Review of Data Hiding Techniques ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 5, page no.253-255, May-2019, Available :http://www.jetir.org/papers/JETIR1905R36.pdf

"Review of Data Hiding Techniques ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 5, page no. pp253-255, May-2019, Available at : http://www.jetir.org/papers/JETIR1905R36.pdf