The Image Watermarking System

1 Introduction With the rapid development of computer science, the Internet has become widespread and popularized, so you can easily share images, videos, documents, and other content. However, the information security cost. For these and many other reasons, digital image watermarks have become an adequate solution to these situations. As shown in the figure, the image watermarking system consists of an embedder and a detector.

Digital image processing can include image watermarking, video watermarking, audio watermarking, frequency or space based data concealment, video object detection, image and video compression, image enhancement, MRI image classification and analysis, time stamp SAR image segmentation, forest High estimation, including VLSI. DRAM, SRAM, 3D power consumption, low power consumption, 16/32 bit QPSK design, 64 bit QAM design, digital communication antenna design, subcarrier, main carrier, channel bandwidth management, wireless power transmission, microwave antenna, phase shift And resonators, pulse radar broadband antenna design, QPSK modulation WCDMA technology

Invisible watermarking algorithms have different classifications. The reason behind this is the diversity of the watermarking method. The watermarking method can distinguish between the watermarking main signal (still image, video signal, audio signal, integrated circuit design) and the availability of the original signal (non-blind, semi-blind, blind) during extraction. In addition, they can be categorized based on the domain used for the watermark embedding process, as shown. Watermarking applications are considered as one of the criteria for watermark classification. Figure 2 shows the subcategories based on the watermark application.

Digital watermarking technology was developed to protect the copyright of media signals. Different watermarking schemes have been proposed for multimedia contents (images, video and audio signals). This research aims to provide extensive literature review of multimedia copyright protection. It provides a general review and background on the definition of the watermark, the concept and the main contribution of the field. Information spreads widely throughout the global network. These connected networks allow cross-referencing between databases. With the advent of multimedia, various applications can combine voice, images, and video to interact with a lot of information (eg, e-commerce, distance learning, human-machine interface, etc.).