Authors : Atheer Bassel and Md. Jan Nordin
Abstract: Multimedia communication is widely used nowadays; it has been used in most of life fields. Great importance has been given to a new art concerns about hiding a secret message inside pictures. The watermarking is as a method of concealing digital information security in the middle of the multimedia data that is the host image. Discrete Wavelet Transform (DWT) when joined together with discrete Cosine Transform (DCT) delivers the powerful digital watermarking image. There are different types of intrusions that either plunder the actual ownership or demolish the appearance. In this study, the DWT-DCT approach has been proposed so as to establish the secure appearance by concealing the watermark inside the actual image and validate the proprietor’s image. Using DWT-DCT and low-bit percentage, the watermark image is inserted and abstracted. Results have been displayed based on the hybrid DWT-DCT for excellent capable digital watermarking image. The expected conclusion of this research is a technique that has the ability to hide the secret data (message) inside the image by using DWT to avoid all the different types of attacks and finally extract the secret data from the image. Two techniques has been used to achieve imperceptibility and robustness of the watermark against certain geometric and non-geometric attacks.
Atheer Bassel and Md. Jan Nordin, 2016. Digital Image Watermark Authentication Using DWT-DCT. Journal of Engineering and Applied Sciences, 11: 3227-3232.