LSB HIDING USING RANDOM APPROACH FOR IMAGE WATERMARKING

Mayuri Verma , Sheela Verma

Abstract: A digital image watermarking is the process of embedding an image with a secondary parameter called watermark, without deterioration in the quality of image to provide copyright protection means to provide protection for intellectual property from illegal copying. In this paper the method of nested digital image watermarking is used that means a watermark inside another watermark embedded into the cover image that is the main image. Here the Randomized LSB hiding algorithm is used for embedding one image into another as it has lesser complexity and the approach is more robust to the variations in the type of image. The blowfish algorithm is used to encrypt the watermark image before embedding into the cover image. The concept of encryption of watermark image before get embedded into the main image is used here to increase the security of the watermark image. This is because the research work is mainly focus on to get the more secured watermark by improving and enhancing the embedding capacity.

Keywords: Digital image Watermarking, Randomized LSB, Blowfish, Copyright Protection

DOI: https://doi.org/10.15623/ijret.2014.0302110