Watermarking Technology Based on Adaptive Quadtree Fractal Image Coding
Wang Qun-sheng · China Cable Television · 2003
This article introduces a digital watermarking technology based on adaptive quadtree fractal coding.After the original image is maked to quadtree fractal coding,we embed watermarking into it by range blocks searching its most-matched domain blocks in different search regions.Experimental results showed that the proposed method is advanced than the traditional method at the coding time of watermaking embedding,image quality and robustness.