A Robust DWT Digital Image Watermarking Technique Basis On Scaling Factor
International Journal of Computer Science, Engineering and Applications (IJCSEA), 02 (04):
63-69 (August 2012)DOI: 10.5121/ijcsea.2012.2407
Zusammenfassung
At the present time, the aptitude in contemplation of accessing as well as sharing images has become progressively facile with the Internet allowing people to procure information remotely from anywhere in the entire world. Moreover, there has been also an expansion with regard to the number of the still digital images over the internet for the sake of the fact that a vast number of millions of people are capturing digital photos. Fundamentally, the procedure of digital watermarking can be delineated as a method for embedding information into another signal (a digital signal). In case of digital images, the embedded information can be either visible or hidden from the user. In this project, we will concentrate on imperceptible watermarks. The principal intention of digital watermarks is to provide copyright protection for intellectual property that is in digital format. Typical usage scenarios for watermarking are such as copyright protection and data authentication. In this paper, we describe an imperceptible and a robust DWT digital Image Watermarking algorithm.The algorithm watermarks a given digital image using a Discrete Wavelet Transform.