Publications

Abstract : In environmental studies and earth observations remote sensing images plays a vital role. Spatial and Spectral information present in remote sensing images are widely used in many applications. Therefore, it is of great importance to protect these information’s while watermarking a remote sensing image. There are many robust watermarking algorithms, which embed the watermark imperceptibly, but they do not focus on how the spatial and spectral information are being changed. In this paper we propose a wavelet based watermarking algorithm, especially for remote sensing images to preserve the spatial and spectral information. Quality of the watermarked image is determined by performing data comparison operations in ArcGIS. Proposed method is checked for robustness by performing attacks STIRMARK benchmark [3], [9] and ArcGIS. We have also shown that the proposed method is imperceptible and robust under most of the hostile attacks. A comparative study is also done between proposed method and method [7], our method gives a promising result. We hope that our method will give a good result when compared with other wavelet based watermarking algorithms.