A robust watermarking scheme using phase shift keying with the combination of amplitude boost and low amplitude block selection

Abstract

Watermarking is a potential method for copyright protection and authentication of multimedia data on the internet. In this paper, a novel watermarking scheme using phase shift keying (PSK) modulation with amplitude boost (AB) and low amplitude block selection (LABS) is proposed to achieve superior performance in terms of robustness and imperceptibility. AB is hired to increase the robustness while LABS is employed to improve the imperceptibility.In order to demonstrate the effectiveness of the proposed scheme, simulations under various conditions were conducted. The empirical results show that our proposed scheme can sustain most common attacks including JPEG compression, rotating, resizing, cropping, painting, noising and blurring etc.

A Hybridized Robust Watermarking Scheme based on Fast Walsh-Hadamard Transform and Singular Value Decomposition using Genetic Algorithm

“…The cross over operators can be used in GA are single point , two-point , multi-point and uniform cross over. (8) Apply operator mutation such as flipping bits or by using shift left or right operators. (9) Define cross over rate that define the number of pairs to be cross over for a fixed population.…”

“…The watermark is usually a pseudo random number sequence, copyright messages and ownership logo. The two common methods used in watermarking are spatial and spectral domain.Algorithms in first category embed a watermark by modifying the pixel values of image and algorithms in the second category embed watermark in spectrum coefficients after the image has been transformed to spectrum domain such as Discrete Cosine Transform (DCT) [17,7,16,24] , Singular Value Decomposition(SVD) [18,31,4,5] Discrete Fourier Transform (DFT) [27,34,19,8], and Discrete Wavelet Domain(DWT) [12],Complex Hadamard transform [9], Walsh-Hadamard transform [10,11]. The watermark is embedded in spectral coefficients and later inverse transform is used to get watermarked image.…”

Wavelet-based fragile watermarking scheme for image authentication

“…Embed the watermark bit into the watermarkable coefficient X HH1 (i, j) according to the modulation method described below such that Eq. (7) (9) where bitxor(X HH1 (i, j), 1) is the Exclusive-OR operation on X HH1 (i, j) and constant 1. The bitxor operation is to reverse the LSB of X HH1 (i, j).…”

“…To meet the security needs, researchers have been actively investigating techniques of digital watermarking in the last decade [1][2][3][4][5][6][7] To achieve the goals of copyright protection and ownership identification, robust watermarking schemes have been developed. They are expected to survive various kinds of manipulation to a reasonable extent provided that the altered media is still acceptable in terms of visual quality, or valuable in terms of commercial significance [1,5,[8][9][10].…”

Identification Recovery Scheme using Quick Response (QR) Code and Watermarking Technique

“…In the approach, the secret information is concealed based on the wavelet domain. Chen et al [10] proposed a robust watermarking scheme using phase shift key modulation with amplitude boost and low amplitude block selection. Chen et al [11] developed a steganography scheme based on the differential phase shift key technique, which is widely used in digital communication systems.…”