Cropping and Rotation Invariant Watermarking Scheme in the Spatial Domain

摘要: Digital Watermarking is an information hiding technique in which identifying piece of embedded into a cover work so as to identify the ownership some important or document. It widely used for enforcing copyright infringement protection various types digital data including images. In images, watermarking techniques have been proposed over time. The are often susceptible geometric attacks such rotation and cropping. This paper proposes image scheme uses properties ensure invariance watermark also incorporates checksum based mechanism tracking any distortion effect work. Efforts given that algorithm conforms high Robustness Fidelity primary quality requirements system.