• Mrs. Madhavi. P
• k. Ammulu
• A. Bindhu Sajitha
• G. Praveena
• G. Sri Nikhila, D. Pavani

Digital image processing is a fast-developing arena with increasing applications in science and engineering. One among the most interested field is data hiding in encoded images. The reversibility feature is used in this method. It is an improved version of Zhang’s Reversible Data Hiding method in encrypted images which is proposed already, but the only disadvantage is about bit error and robustness. Reversible data hiding embeds the data into a digitally encrypted image by changing the pixel value for secret communication and the embedded image can be improved to its original state after the removal of the secret data. Finally, Recovery can be accomplished by examining the block smoothness. The main aim of this application is where the owner of the carrier might not want the other person, including data hider before the data hiding is performed, such as military images or confidential images. This paper measures the smoothness of blocks and uses the Side-Match Scheme to decrease the error rate of extracted-bits further.

Encrypted image, reversible data hiding

"Data Hiding and Extraction From Images Using Side Match Algorithm.", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 4, page no.131-135, April-2019, Available :http://www.jetir.org/papers/JETIRBC06020.pdf

"Data Hiding and Extraction From Images Using Side Match Algorithm.", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 4, page no. pp131-135, April-2019, Available at : http://www.jetir.org/papers/JETIRBC06020.pdf