A Watermarking Algorithm for Remote Sensing Image Based on DFT and Watermarking Segmentation

• DOI: 10.4028/www.scientific.net/amr.433-440.2504
• Publication Date: 2012-01-06T06:56:04Z
• Authors: Li Li Li; Jin Guang Sun
• Keywords: Centroid; Robustness

In this paper it proposes a meaningful digital watermarking algorithm for remote sensing image based on DFT and segmentation. At First, normalizes the host determines an invariant centroid, then selects square area around centroid watermark embedding. Next, generates pseudo-random sequence as watermarking, divides into two parts. Finally applies to selected region embeds phase amplitude components of image. Experiments have shown algorithm’s characteristics good robustness, simple calculation, easy realization, extracting without original image, has value copyright protection images.