A Novel Approach for Data Retrieval using Watermark Technique

Watermarking is the process of embedding information into a digital signal which may be used to verify its authenticity or the identity of its owners which can further resolve the pilfering of analytical properties. Watermarking plays major role in quality retrieval of data or the message embedded in the image. The process of data retrieval is very much critical as many stumbling blocks are there in the process like tamper detection, data loss, time complexity. The experimental result of proposed work shows that the PSNR values of original and watermarked images were almost same with similarity of almost 99 %. The watermark strength (alpha) is varied from 0.1 - 5 to analyze the behavior (alpha) in data retrieval.