Effective watermarking technique using optimal discrete wavelet transform and sanitization technique

Abstract

Nowadays, the communication progression is turn out to be easy and effectual than previous days because of the development of science and technology, which is supplying numerous advantages to the consumer. Consequently, the consumer can access and preserve their data in the effectual manner. However, some of the difficulties are presented to transmit the data from one place to another. To overcome the problem in this paper an effective secure data transmission is proposed using optimal discrete wavelet transform (ODWT) and sanitization Algorithm. The proposed work consist of two module namely, embedding and extraction. For embedding process, the secrete image bit is inserted into the original image. Similarly, in extraction process, the inserted bit is extracted from the watermarked image without any information loss. Here, sanitization approach is applied to secrete image to attain the secrete bit. The performance of the proposed scheme is analyzed through various constraints namely peak signal to noise ratio (PSNR) and normalized correlation (NC).