A New Secure and Robust Watermarking Using Entropy and Hybrid Scrambling Approach

In today’s digital epoch, the notion of the Internet of Things (IoT) is widely engaged in delivering a variety of services. Internet technologies are highly used for online communication. Hence, the validity of digital media and copyright safeguard techniques are extremely required. For authenticity and to protect copyright data from unlawful access, an entropy-based watermarking technique is proposed here. The Y section of the color space is employed to place secret digital information. Y channel block having the highest entropy belonging to the host image is employed to embed the watermark using scaling factor (α). The dual scrambling method is used for watermark security. To judge the effectiveness of the projected technique, various image quality and security assessment parameters like PSNR, SSIM, and NCC are used.