Application of rough sets theory in digital image watermarking
Liang Hou · Journal of Computer Applications · 2006
Aiming at the feasibility of the application of rough sets theory in digital image watermarking technology,a method to choose embedding position for watermark information was put forward based on the theory of rough sets and human visual characteristics.The new method regarded the carrier image as a knowledge system, divided the coefficients of image into some different equivalence classes according to the request of human visual characteristic,then selected suitable coefficient positions for watermark embedding through the combination of attributes.The test results of grey level picture Lena(512×512) and Baboon(200×200) prove the validity and expansibility of this method.