Research of watermark-embedded rules´ performance based on DWT

An important issue in the research of Digital Watermarking is the trade-off between invisibility and robustness of the watermark. Based on the actual application, the digital watermark embedding rules mainly consist of additive embedding rule, multiplicative embedding rule, and embedding rule based on regional integration technology. In order to achieve the best purpose, this article tests a variety of common image attacks through the digital watermark anti-aggressive in combination with different embedded rules, and provides guidance and reference for the choice and application of the watermark methods while detecting strengths and weaknesses of different embedding rules´ performance.