Effects of watermarking on feature efficacy in remotely sensed data

Digital watermarking is gaining increasing popularity and attention in various research communities as a means of providing protection of ownership rights for multimedia data. Recently, researchers have begun to explore its feasibility for the same purposes for remotely sensed data. The suitability criterion for any watermarking algorithm is typically determined by the processing and analysis techniques to which the data is most likely to be subjected. In remotely sensed data, a primary application is target detection, which further leads to various secondary end products like land cover maps. In proposing a watermarking algorithm for remotely sensed data, it is necessary to minimize any adverse effect on classification, while simultaneously achieving reliable detection of the embedded watermark. This paper proposes two algorithms for this purpose