A Review on Digital Image Watermarking Based on Dual Noise and Geometric Attacks

The data which involves sound, image and video was kept in numeral system. Image data is digital form propositions several benefits and different abilities for normal user. Likely the most common used potential of digital media is the untroubled copy without degradation of the medium. Stenography have numerical environment, combination documents and it will be copied, altered, distorted, and dispersed precise simply. For that, it is necessary to improve the structure for patent safety, defense against duplication, and validation of documents. Hence, digital Stenography is best solution for providing more security to client/server in open communication channel during the communication process. Now, in some existing methods Provide Two Different Approaches one is only provide security against some normal Noise attacks like Gaussian attack and salt and pepper attack. Second against Geometric attacks like Rotation, Scale and Transformation.