### Adaptive digital watermarking based on HVS and quantization

ZHANG Fengmei, HAN Yadan, YAN Deqin

1. College of Computer and Information Technology, Liaoning Normal University, Dalian, Liaoning 116029, China
• Online:2012-12-01 Published:2012-11-30

### 基于HVS和量化的自适应盲水印算法

1. 辽宁师范大学 计算机与信息学院，辽宁 大连 116029

Abstract: In this paper, a HVS-based algorithm is proposed, which embedded a binary image in DCT domain by quantifying the coefficient of  DCT’s middle coefficients. The main idea is to adjust the embedded-intensity of coefficients of the DCT’s domain by calculating values of texture sensitivity and frequency sensitivity and intensity sensitivity. The proposed technique can actually survive several kinds of image processing such as image cropping, shifting, blurring, noise, sharpening and JPEG lossy compression. Simulation results prove the effectiveness of the algorithm.