An effective application of watermarking techniques in the transform domain for content authentication

Abstract

Internet media consumption, especially in the forms of audio and video, has become ubiquitous in modern life. Multimedia signals, data alterations, and backup copies are all more likely to occur with digital data. This creates a security risk in digital systems, making sensitive data vulnerable. Due to security flaws, it is now a danger in the realm of digital technology. The most difficult issues to solve in the digital age are authentication and copyright protection. The use of digital watermarking to secure online content is an exciting development. Watermarking is a technique wherein an organization’s logo or ownership information is permanently embedded into the original data without degrading the quality of the data itself. With the right decoding method, a watermark can be recovered from the host image while remaining imperceptible to the human eye. By dispersing the embedded data throughout the original image, the watermarking is made more secure. The watermarked image is also treated by combining the red and green planes using inverse DWT. The watermark can be retrieved thanks to an extraction technique that is the inverse of the one used to embed it. Known as a non-blind watermarking technology, the suggested detector is given access to all information collected by the encoder. The method is vulnerable to image degradation when confronted with Salt & Pepper noise or Gamma noise.