Abstract—It is very easy to copy and distributed the digital data illegally. There are many methods for solving this issue like intellectual, material right protection and Copy right protection for authors, owners, distributors. As the advancement, invisible double digital watermarking technique has received considerable attention. This paper gives a robust digital watermarking algorithm for color images based on discrete wavelet transform. Here, we choose a suitable method to watermarking algorithm for color images based on Haar discrete wavelet transform. The experiment result are very well, clearly represent the transparence and robustness of the algorithm. The experiment result shown that this algorithm is also secure to various attack.

Index Terms—Watermarking, Haar wavelet, DWT, IDWT, PSNR, NC.

Anubhav Kumar is with the Raj Kumar Goel Institute of Technology for Women, Ghaziabad, India (e-mail: rajput.anubhav@gmail.com).
Anuradha is with the Electronics and Communication Engineering Department, Laxmi Devi Institute of Engineering and Technology, Alwar, India (e-mail: anuradhamit@gmail.com).

Cite:Anubhav Kumar and Anuradha, "A Novel Watermarking Algorithm for Color Images Based on Discrete Wavelet Transform," International Journal of Computer and Electrical Engineering vol. 6, no. 4, pp. 303-306, 2014.